305 rough idle. You don't want to wait to get this checked out! If the idling appears off, it means the computer is unable to identify the fully shut throttle Just purchased the truck 2 weeks ago I have spent countless hours going over the engine looking for vacuum leaks and believe every thing is OK on that front Engine misfires at idle The Fix: Check engine control systems with a scan tool Engine will speed up with opening the idle screw You will get some pinging due to no EGR flow, but if the idle or just off idle improves, the EGR is opening too fast due to carbon buildup inside the valve and must be replaced I will drive on the highway and it will drive fine there should be no vaccum at idle going to the egr valve nboylie said: nothing says i love you like a cock ring Hi there everyone, I have a 2002 Jeep Liberty that has systematically broken down every 2-3 months Ask Your Own Chevy Question Author's own image Carburetor low idle set too rich or too lean Pretty much any of the cams I recommend or have listed on the website will pull at … You will notice a racey idle with the 280-grind while the 292 and 305-grinds will produce a rough or ''rumbly'' idle Next, inspect all the components to find the actual cause of the rough idle Engine Vibrating more at Idle, Rough in Gear One of the most common causes of rough idle on a cold engine is a faulty ECT sensor 5-14 May 20, 2010 PCV valve Consequently the ECM then must increase the ammount of fuel injected to bring it back to proper idle 03' GMC Sierra 2500 RCLB true dual Magnaflows, 305 m/ts 5 blade 35 geolander ats 2in rough country leveling kit, 1 I Have Changed The Plugs And I Also Have Done A 1986 Chevy Camaro V8 Two Wheel Drive Automatic 130xxx miles The Fix: Check and replace distributor cap, rotor, ignition wires and spark plugs Just a little at idle, noticeably more in gear Jump to Latest Follow 1 - 7 of 7 Posts Again, runs smooth at idle and even Revs First tried to do the intake throttle body cleaning but it didnt help Want this question answered? Be notified when an answer is posted Use thin wire to clean out the passages completely Idle Air Control Valve Replacement Cost Since less air will be going into the Hey guys I am having trouble with my car idling rough pump This sensor signals the car's computer when the engine's coolant is cold or hot, so the computer delivers more or less fuel to the engine curb idle speed 500rpm in drive When first started it will run and idle perfect, but after driving a few miles and stopping it will not idle at a steady rpm Intake duration is 287 and exhaust is 305" Just rough idling 5) Dirty Fuel Injector Reasons for a Rough Idle or High RPM An engine that is doing a rough idle when cold can also be the result of faulty spark plugs or damaged spark plug wires 4) Engine Stalling Car starts faster (didn't want to start after I got home from the store 12-31-2004, 04:33 PM 5" BL - Ford Keys - colormatched just got my valves adjusted at 192000 kms '04 2500 5 I found the factory set-up was a bit rich off idle on the 1405, for the 350 rough idle, and very low acceleration on 1992 c1500 if you unplug it and it does nothing it means that its already running in default and need to change the sensor Ive thought about a thumper cam but I want somebodys opinion on this!!! Any help would be very great !!I heard you guys on here really know what your talkin Champion: An expert who has answered 200 questions The problem turned out to be the EGR solenoid valve, not the EGR valve and the dealer repaired it under the emissions Discussion Starter · #1 · Dec 12, 2005 The engine code says lean exhaust (code 42) the engine runs alittle rough,hesites when you acclerate,and at idle it will rev up alittle for a … A PCV valve leak can cause the air-fuel mixture to run too lean, and this will cause a rough idle I personally like the 307 better than the 305 as far as Bore/Stroke and Rod Length/Stroke ratio If the idle smooths out, or speeds up then you found the problem My probelm is this When it is going thru the gears (in second) it feels like it is holding back Tuesday I start it up and it started to run fine till i got How an Idle Air Control Valve Works An internal combustion engine needs air, fuel, and spark in order to achieve ignition A vacuum leak can be caused by a bad vacuum hose, intake manifold gasket, and other vacuum powered accessories Hi, I just recently purchased my second Camaro I am having a problem with the first 5-10 minutes after start up 1974 Coupe-L48/4speed, Medium Red Metallic/Black Deluxe 69 Camaro Coup-My Granny's car-327/210hp solenoid assembly adjustment with air conditioning 600 rpm in drive (my car did not have a/c) fast idle speed 1600rpm in P or N 791 @ 98MPH If you have idle and just off idle problems, check the EGR valve by pulling the vac line off it K&N Air Filter w/ Opened Air Box, Hedman LT Headers, Borla ProXS Mufflers, Polished SS LT1 Tips, AIR Delete if there is could be the egr valve solenoid truck sat for 3 weeks and started this The 270H has a rough idle in small blocks and a noticeable idle in big blocks #62 · Jun 13, 2011 Engine run great above 1000rpm, but cant get a smooth idle rs2k Mar 10, 2009 Not open for further replies It came with a 5 Give it some throttle while sitting still, or under acceleration, completely smooth My wife took it one day and it stalled and had a rough idle Most of the time the culprit is going to be the ignition system My 1986 Silverado C10 with a small block 305 is having a weird misfire issue Bad Idle Air Control Valve Symptoms Check And Replace Spark Plug And Wires (If Needed) Turn on the car’s ignition and let the engine warm up goomba It is a Fluid and 305/70 Procomp X-Terrains runs down the road great! 426 Posts NOTE: This tutorial covers the EGR valve of the 1987-1995 throttle body fuel injection (TBI) … I just finished fixing a manifold gasket leak today on a 98 with the same engine Recently rebuilt the 454 in my 1990 TBI Burb This was/is a daily driver 4x4 and a stock late 70's truck motor though, a bit different than our cars Like I said, compressor Spark knock… Customer Question So far I have tried different distributor and wires, tightened down and adjusted the (new) carb First thing we replaced was the fuel filter Car ran great immediately and seemed my issue was fixed Posts: 305 Likes: 0 Received 22 Likes on 11 Posts Quote: Originally Posted by It will idle rough almost like rotational type of shimmy (hard to explain, but it will run rought for a second, then smooth for a second, then rough for a second and so on) 1,625 Logged after replacing the motor it will not idle,and stalls out when stopping, also noticed that the motor surges, when applying the throttle it will rev up,but it will try to die off unless you let off accelerator a little and reapply Have not checked/replaced the battery yet It only takes a minor problem like, a fouled spark plug, to cause your engine to idle rough 2010SXT4 The engine struggles to keep it above 7-800 RPM After it has warmed up obs 07 1500 diamond MDII 7 When its cold (as in first thing in the morning), it fires right up and high-idles for a few seconds and runs fine 7L There are quite a few reasons why your Chevy Silverado could be idling rough Couple of questions Key Specs I have experienced a rough idle condition with mine at times as well where the tach actually fluctuates of the time it's Had it towed to a friends where we pulled out the Chilton book and began troubleshooting Things that can make this 305 idle rough:1 so something is breaking down when it gets hot- my guess When one or more of these variables is off it can lead to a rough idling condition Zone 1 Truck was taking 10-20 minutes to warm up, having rough idle until it warmed, then ran fine See if your check engine light is on 4 liter 4x4 have a rough idle or am i overlooking something? smalls15, Jan 18, 2014 #1 rough idle mystery solved 5th Gen Camaro SS LS LT General Discussions You are browsing camaro5 Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 285/305 Michelin Pilot Super Sports, Pray ported Intake manifold, Soler Throttle Body, Rotofab intake, EFI Tuning Flex fuel kit, full American Racing Headers Exhaust, 1 7/8" w/ cats H pipe and If you have difficulty reading the picture, Auto transmission 305 with EGR EFE Canadian Cert 398 104 104 1000-3500 stock 817 comment: good low end torque and mileage mc2200 hyd 2 194 204 270 278 Idles Erratic or Idles High 10-18-13 11:34 AM - Post# 2392067 In response to someotherguy Thanks for the welcome Richard There is no popping in at wide open throttle cap, rotor, plugs and wires, fuel filter, oxygen sensor, coolant temp 4) Carburetor Issues The timing is 38 degrees These are good distributors and 100% serviceable 1989 Chevy Caprice 5 When you get to the map port just move map to a different port on the throttle body I got all 4 new (and the factory recommended) plugs and my neighbor changed them for me 34 % of the time it's the Installed new cap, rotor, coil, and ignition module 1996 GMC Z71 this happen all at once engine is misfiring, rough idle, loss of power, will start right up, check plugs,/replaced wth is going on with it ,also check MAP sensor and clean it check all 1996 GMC Sierra 1500 C1500 SLE Extended Cab SB So here’s what I figured out was happening to cause the engine to not idle properly At low RPM, seems to have sluggish response with light throttle pressure, after a little more gas kind of "jerks" and goes 34% Posted on May 08, 2014 Joined Apr 28, 2007 · 143 Posts The curb idle is set with the idle speed adjustment screw on the primary throttle linkage on the driver side of the carburetor Turn on the ignition, but don't start the engine Most of the time the engine will idle at a higher RPM a suction sound can be heard - The most common reasons a Chevrolet Monte Carlo has rough idle are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil rough idle « Reply #1 on: January 13, 2006, 03:07:15 pm Post: 305 Running rough at low idle?? (Topic#268627) TruckinChance Contributor Posts: 490 Age: 33 Reg: 03-26-08 rough idle, hard start I slowed to make a turn, had to downshift to 2nd, accelarated with no miss, shifted to 3rd, hit the gas and wham, big miss Let me start out by giving you some history about the truck I bought it with a blown turbo and replaced that along with the timing belt and still had a rough idle Every time the rough idle started up again I would just turn my A/C on and it would disappear (sounds crazy I know) If you find it necessary to replace the vacuum rough idle A rough idle will result in, intense vibrations forming, whenever your vehicle is stopped with the engine running 1985 Coupe-L98/Auto,Bright Red/Carmine August 30, 2019 by Jason 0L Still no change The cylinders would wear a grove at the top where the piston rings stopped traveling upwards on the compression and exhaust stroke While these are not all of the signs, it’s a great start Here is the kicker if I go above speeds of 58 what happens is when I come to slow down to a stop my car will start idling real rough and will almost stall out The idle air control valve is located on or near your intake manifold that monitors the air intake as it is mixed with fuel prior to being injected into the engine Made all my adjustments in this manner, idle speed is higher on muffs but right at the 650-700 while underway in the water Has a 2200-6100 RPM range and 107 ° of lobe separation There is a switch in the throttle position sensor that is supposed to be triggered when the throttle lever goes to idle to tell the computer to idle Changed air idle control valve with little results The vehicle is a 70 El Camino SS 396 with a Q-jet carb Pulled carb and cleaned Oct 20, 2009 305 Get a Quote Spark plugs use the electrical current produced from the ignition coils to ignite the correct ratio of the air to fuel mixture within the combustion chamber in the engine Do it a couple more times It was 9 years old and when we blew into it there was a lot of restriction I am slowly working the bugs out of a new cam and head swap 7) Bad Idle Air Control Valve The 1984 and 1990-1996 Corvettes use a NC control valve solenoid that blocks vacuum flow until the ECM or PCM applies an electrical ground to open the valve Stalling Plugs look a little bit black but I haven't been noticed any smoke The engine should start, and may run rough Q: Rough idle, surging, and hesitation - 1998 Chevrolet Blazer checked all vac lines I gutted the mufflers for Borlas Replaced Front/Top/Passenger Engine mount it has a very rough idle, RPMs jump up and down Engine Misfire or Rough Engine Idle on GM 4 Its got a freshly … 1981 C10 Silverado 2WD 305 V8 with 120,000 miles, new electric fuel pump, new filters, new gas line all the way back, 4 barrel Rochester carburetor rebuilt Looks like your idle speed is really low, to begin with When its in gear at idle (like a stop light), it struggles to stay above 500 RPM, and Table of Contents 1995 Silverado 305 rough idle Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 1995 Silverado 305 rough idle This topic contains 9 replies, has 6 voices, and was last updated by Matt 10 years, 6 months ago The engine is revving up and down when I come down to an idle sensor, and I spent a few hours replacing shoddy wire connections as per my mechanics recommendations The car has had a rough life and we bought it as his school car The rough-running issue only comes around when the truck is in drive and the engine is under a load However, the specs are 450 rpm for standard trans, and 400 for the auto (in Drive) Post: 305 Running rough at low idle?? (Topic#268595) TruckinChance Contributor Posts: 490 Age: 33 Reg: 03-26-08 #1050990 - 05/21/17 09:30 PM Re: 1986 Monte Carlo SS 305/Quadrajet Rough Idle/Gas [ Re: saltydbs ] Joined: Mar 2016 You will notice a racey idle with the 280-grind while the 292 and 305-grinds will produce a rough or ''rumbly'' idle Having air pockets in cooling system can cause some idle and driveablility issues as it interacts with the ECU via the temp sensor I am having problems with the motor popping through the exhaust Remove the wing nut on top of the air cleaner and lift the air cleaner off the throttle body to access the vacuum lines The Idle Channel Restrictions are the holes that are slightly farther apart and farther towards the front of the carb (nearer the fuel inlet), one per side This is a video about rough acceleration rough idle low idle and possible stalling I have a 1987 chevy truck with 305 engine If electric choke not working and blade on carb is not fully opened, that would cause your issue check for power at choke stat, if not, check fuse If this does the trick then adjust the idle air screw in until the engine starts running rough then screw it out until it smoothes out and your set But since the linkage didn’t go to the stop, the idle switch wasn’t It probably won't have a rough idle but, the 305 TPI engines respond well to the stock GM LT1 roller cams that were installed in mid '90's model Corvettes rough idle which I could also detect at cruising speed if I let off the 05_z71 · Registered Previous owner gutted the sensors and has LT headers, cat-less H pipe, and was on stock replacement mufflers The EGR Valve (Exhaust Gas Recirculation Valve) is an emission control device that allows exhaust gas to enter the intake manifold Run the engine at a high idle for about 10 seconds sometimes a stall in open Also, it idles slightly rough from my perspective i bet your idle icp is around 700psi if it doesnt change the idle 6) Clogged Air Filter I went home for lunch, spit and sputtered If both are sooty, too much exhaust gas is passing into the intake If the coil (s) or distributor fails, the spark may be too cold to ignite all of the fuel in the combustion chamber Didnt even knew i had rough idle because i import a salvage mustang and and repairing it the mechanic told me you have a ripped wire harness Spark Plugs I had rough idle nothing like car wanting to shut off or anything like that After saying a few choice words, I took a walk and picked up 6 new plugs and the socket, best case scenario, I'll have some spare plugs and a coil pack for down the road would cause a stall when you first hit the accelerator Manifold vacuum, so those cans don't work very well on a modified engine; with less than 15" Hg 3 and been fine too, especially if that 4 The hose is available in the "HELP" section at any Auto Parts store If there's a nice and even spray pattern with steady, even pulsing, it's probably fine, check elsewhere And it doesn't seem like it's wanting to settle into it's idle Check the idle mixture screw for bends, or scoring on the tapered end I drove it sunday morning without any problems I apologize if I'm thread jacking here, but I could really use some help Down-shifting is … P0300 rough idle on 97 Chevy k1500 305 - Maintenance/Repairs - Car Talk Community 97 chevy k1500 with 305, engine rebuilt by shop 60k ago, last few months only drove truck 4-5 times, last time driving gave p0306, new plugs, wires, cap, rotor, cleared code, now gives p0300, took intake apart removed sp… 305 Reaction score 38 Location Florida Vehicle(s) 2015 Mustang Ecoboost Premium Vehicle Showcase 1 Posts: 17 newb'65 1983 Chevy K10 RCLB- 305, SM 465, NP 208, 3 Been sitting 2 years Sep 14, 2008 13 years of experience The most common reasons a Chevrolet Silverado 1500 has rough idle are a vacuum leak, an issue with the spark plugs, or a … Eventually the deterioration will reach the point that the vacuum advance no longer adjusts the timing, causing the vehicle to hesitate when the engine attempts to move the vehicle's weight Share 2 Last year my 94 350 had a slightly Symptoms: Rough Idle 09-02-11 07:52 AM - Post# 2132906 This all just started happening outta the blue here is the list! fuel pump/filter,tps,iac,temp sensor,map,pvc Four circuits are used in order to control the IAC valve, allowing a … Messages idles smoothly, and it runs fine once it's above about 5-10mph or so Any help on why it pops will be appreciated Stock components are generally incompatible Sorry you had to trade/sell to get satisfaction It currently has a problem I am unable to fix, however timing 4deg @ 500 rpm spark plug gap 0 The engine is a low mileage 305 with turbo 350, Edlebrock dual plane intake, L-79 cam, modle 1850 Holley 600, and headers 1 There is a video on youtube titled "04 cummins rough idle" and is exactly what my truck sounds like 398 I have a 91 RS Camaro with a TBI 5 If it stays consistently at 800 RPM, you likely do not have any issues with your valve Then swapped just coil from #4 (the original #6) with #2 coil and got no code and shudder seems Hey guys, I'm just finishing the install of a 305 in my 87 S10 and I can't figure something out I took the carb (Rochester Monojet) apart, cleanded it and installed a rebuild kit David ---------- … Ok, here is the story Insufficient fuel injection starves the engine for fuel, leading to rough idling and perhaps even random cylinder misfiring Again- I'm not real familiar with the Joined Feb 6, 2009 Then nothing the rest of the way The Car: 1991 Camaro RS 305 TBI (vin 1G1FP23E6ML113392) The History: This is my brother’s car he has not even had it for a complete year yet Maybe it is just the cam that they put in the 6 This is an older thread, you may not receive a response, and could be reviving an old thread Appears to be a pulsa jet carb steady speed, and I give the truck gas to accelerate, it hesitates and backfires before 99 Ram Sport -318, 5spd, JB Conversions NV231HD with SYE and CV rear driveshaft/7" SJ coils/RK long arms/RS9000XL/Thuren TB/1-Ton steering/ 3" PA Body Lift/38 After 20 or 30 minutes I could get it to idle enough get it into gear and move You are now going to adjust "minimum air" It ran but not very well, it had been sitting for the past 3 years and nothing was rough idle and white smoke a good mechanic will try to find the exact cause of the problem quickly and fix it p Weiand Stealth Intake/Carter 625cfm 4bbl Stick with straight 30 or 40 weight oil and change it along with a new filter at 1,000 mile intervals two or three times; extend to 3,000 mi service intervals, thereafter 01 I just started noticing a back firing and stumbling when you accelerate from idle It could also be caused by other air-fuel mixture-related issues like bad fuel injectors, EGR valves, or low compression Reply The factory engine block cracked, supposedly due to an … Post: 5 Vacuum Leak Okay, manageable, start with spark plugs 3L, 6 People have told me it could be a vacuum leak I've been working on an El Camino with a 70's Chevy 350 of unknown condition 0 V8 Initial Start Up Rough Idle The engine was just rebuilt and the carb was also restored and rebuilt 0 V8 420 104 104 1500-4000 smooth 817 c 8 Stodgy models like the Chevrolet Caprice, Oldsmobile Cruiser wagon, and the Buick Skylark used the engine, giving it a reputation as under powered It will idle at about 500 rpm and constantly bog down to about 100-200 rpm The idle of a car engine is kind of like a human heartbeat: You can tell what shape it's in just by listening If you mashed it, you'd Provides with that iconic rough idle that can only be obtained from aftermarket cams sensor, MAP sensor, fuel filter, pcv valve, o2 sensor, cap, rotor, spark plugs and wires, most vacuum hoses, radiator and water Jump to Latest Follow Submissions now being taken for MAY CUMMINS OF THE MONTH! SOLD: '06 QCSB, Auto, 4x4, RP/Pyro/Boost, 2" HBS Leveling Kit, 20 x 9 Raceline Assaults 305/55/R20's, Tuning from Anarchy Diesel But I could be This things got me 08-01-14 05:05 PM - Post# 2473627 When the engine is started, does the engine have a fast idle that slows down as it runs? The IAC (idle air control) and temp sensor, is what gives the fast idle Article Summary X Fouled Spark Plug 0L · Registered Jump to Latest Follow 1 - 10 of 10 Posts Cold start - rough idle never notice it The problem begins if you notice your idle speed jumping all over the place Jeff Engstrom Most vehicles have a maze of hoses throughout which create a vacuum for both fuel and air Begin by adjusting the driver side idle mixture screw in (clockwise) approximately 1/8th of a turn while monitoring the vacuum gauge When I came back, the choke plate was still open a bit, so I put the breather lid back on, and it started right Why the engine ran rough at idle Once it got cold (40*), car started having a rough (low) idle Then, using insulated plug wire pliers take out the wires from the plugged location Now, go remove the connector from the IAC Then, when it's at an idling speed, take note of the RPMs in your car User Info If the choke is in the open position, the carburetor's power valve may have blown, or the idle jet within the carburetor may be clogged with dirt Dad's Ride 2010 Silver SXT4 For example, your engine is … Engine Misfire or Rough Engine Idle on GM 4 The rpm may be sporadic, raising and lowering randomly $184 later, and no Oil change to GTX 5w-30 1 - 11 of 11 Posts I took it into the dealer to get my new wheels and told them about it It will idle fine at 700 RPM and 8 degrees BTDC The engine idles a little lopey like it should for this cam, but there's a Your engine is idling, and your RPM runs at 800 revolutions per minute put a brand new filter on thinking it could be that, no changes, pulled the bleeder valve screw and it was totally destroyed so i replaced that and still nothing changed Chevrolet Silverado 1500 This can be caused by several things, but there is one item often missed by the rebuilder and that is the idle tube 4L - Last summer while sitting in traffic, waiting on the on ramp to the freeway, my truck started to idle really rough Engine won’t idle smoothly, idles too slowly, or stalls Modified engines with more cam that generate less than 15 Testing the EGR Vacuum Control Solenoid 045" curb idle speed 500rpm in drive solenoid assembly adjustment with air conditioning 600 rpm in drive (my car did not have a/c) fast idle speed 1600rpm in P or N It gets better 50-17 Xtreme AT's/D60's/ARB's/5 The engine now runs a even 185 psi on all cylinders (engine has 100,000 miles) have to crawl through any intersection until it picks up a bit of speed from idle Wait 30 seconds I have adjusted timing and idle fuel mix to … Pretty much as lame-duck a 305 as there EVER was 54 - $1028 At least a 2500-RPM converter must be used, but a 3000 is recommended That’s why, the number of potential sources of a rough idle, can make your diagnostic a little difficult It will restart but smells flooded There may be a fault in the computerized engine control system My son and I just completed a total rebuild of an 88 Camaro with a 305 TBI Similarly, an excessively rich or lean mix makes the engine hard to start I think the part is a DORMAN# 46001 87 El Camino 305 4 barrel carb, slightly rough idle, then stalls after about 150 feet Hook it to all ports on that throttle body If the vacuum system gets a leak, it will cause a shake when idle Came back to work, it didn't miss a beat at first The engine idles a little lopey like it should for this cam, but there's a The 90 degree elbow in the PCV Valve hose at the base of the throttle body to the PCV valve is common to either fall off or have a hole in it 0 Idle adjustment 305 has the same stroke, smaller bore than a 350 Your OMC has an ESA (electronic shift assist) module, it stumbles the engine when shifting out of gear (causes it to drop in RPM and run rough by pulsing the distributor) Automotive Mechanic Re: 1985 el Camino 305 Rough Idle and Automatic Choke out 368 not real hard to do 9, been using husky diesel for the last 8 months, the day after my valve job, when it's in park and i rev it, seems to sputter back down to 750 rpms diesel mech at eastside said its a bad injector, but i … Especially not the amount one would expect from as much that is coming out of the breather We need more info to help you Re: 1985 has some rough idle (2/16)7/26/13 12:59pm … Back Fishing If the engine has been sitting long enough to cool off, it takes a lot of cranking to start it Show More rough idle « previous next 305 There is a Torx screw on … Can a first gen 3 This is caused by people tightening the screw too tight Good Luck so the truck runs and drives just fine, but at an idle it jumps up about 200 rpm every 5-10 secconds 8L, 5 There are a couple of good YouTube videos on how to do this, too The History: My uncle, “Unk” was Elsie’s original owner I have a 04 Flushed Antifreeze and fluids in all resivoirs (as good as I could) None of this resolved my issue which is this: Car starts up and runs smooth Please consider creating a new thread The engine starts willingly and has power but idles rough I sprayed it down and listened but could Rough idle is probably TBI related, especially since you over-pressured the TBI While the engine is warming, make sure it deactivates the choke linkage It stumbles as if it's missing a couple of cylinders when you accelerate A cold engine requires more fuel than a warmed engine Or disconnect the fuel hose from the petcock, and spray carb cleaner thru hose Engine Coolant Temperature (ECT) Sensor I've changed the Gasket, IAC, TPS, CTS, EGR Valve, Fuel Filter, Ran injector cleaner through it, Tested for Vacuum leaks, Checked Fuel Pressure, reset the air rate screw, and IAC Background on the car: well cared for, regularly maintained, 175k, automatic trans 305 running rough WE HAVE CHAT!!!!! Click the Chat button in your NAV bar 1999 Chevy: van 5K subscribers Subscribe Farted … 2 A failing control valve solenoid can cause stalling and poor or very rough idle on the 1984 Corvette Crossfire engine Durable04 According to my research, the ideal vacuum pressure for the Quadrajet is 18-in-Hg (inches of mercury) Lean air-fuel mixture Hi, Im new to the Forum, this is my second post :seeya: I recently bought an 86E TPI and its got an interesting set of issues, especially with idle 3 Idles a lot better with MAP sensor unplugged wingshooter66 · Registered I can’t get the timing set correctly because as I turn the distributor to get the timing mark closer to the timing tab the car starts to run worse and stalls 2020 Unlike a port fuel injection system, that sprays fuel into the intake manifold runner just above the intake valve, the injectors in this system spray fuel directly into the throttle body above the throttle plate Otherwise runs ok 0L 98500kms 2013 Ford Focus SE HB it seems to do it when the truck comes to a stop and the breaks are applied It feels like a very bad miss It was the EGR 1999 Chevy van w/ 305 1999 Chevy van w/ 305 When placed into gear (reverse/ drive/ 3 / l2 / l1) and at idle, the engine Idle speed set incorrectly It has a … what your mechanic will do to fix your rough idle When I first bought it (in February), it would idle very rough and was slightly hard to start when cold 5 mdII dimond plow 4 Common Reasons Why Your Engine May Be Idling Rough Jump to Latest Follow and I cut the car off, jiggled the choke plate and fast idle linkages a bit, and then walked away for about 30 minutes will idle in 3 Rough idling can also be caused by bad motor mounts, an engine misfire, incorrect ignition or valve timing of even bad tune up parts Basically I have a 350 small block chevy bored 0 idles rough Mopar T Linkage, BDS Dual stabilizers, Fox Shocks, 2 This is a set of drills that are small and very closely spaced to each other To check if an idle control valve is working properly, start by turning on your engine and letting it run for a minute or 2 So, you replaced the fuel pressure regulator, or the entire ‘Spider’ fuel injector assembly and now, when you start the pickup (SUV, van or mini-van) it idles very rough! If this is happening to you, then let me tell you right off the bat that the most likely cause is a major vacuum leak caused by a broken ‘Spider’ assembly O-ring The rough idle is noticible and my dad's 2001 pontiac montana runs smooth WHAT UP? 1986 Monte Carlo SS (FOR SALE) You will notice a racey idle with the 280-grind while the 292 and 305-grinds will produce a rough or ''rumbly'' idle 0, rough idle also 2) Check Engine Warning Light #1 However, this seems to be a known issue from Ford on 2011-14 Mustangs in general and Ford announced Customer Satisfaction Program 17N01 to deal with this in 2017 If the engine vacuum and/or engine speed increases, then adjust the passenger side Failed Ignition Coil (s) or Distributor blackbeauty73 · Registered A hydraulic flat tapped style camshaft and has an intake centerline of 102 13's/ EMS Off Road Hub Conversion/One peice passenger 2 The RPM on my engine does not come down when I come to an idle See how we do it The Class Of The Heads Chevy 305s came with only 1 At 600 RPM and 8 degrees BTDC the engine will lope a little and can even die when the prop and exhaust have a load Hard Starting Also the 22RE will have the quality of the idle compromised by a low coolant level On the far left port (distributor vacuum advance port) I read nothing at all The car runs better when I accelerate up to speed, but at a stop it's very rough and smells like hell Then after about 20-30 seconds it will idle, but real rough This issue is caused by volatility of modern fuel There is a large “sucking” sound coming from the throttle body when it is warmed up $162 Twist and pull the vacuum off of the bottom of the air cleaner and lay the air cleaner aside Rich the answer is quite easy actually it falls into 3 catergories You may want to "rebuild" the TBI's 5 Rough Country Level, 20X12 Fuel Beast, 305/55/20 Falken ATW3, Timbren rear helpers R Catalytic converts= none glow after 1 hour trip at 70 mph Provided you get the proper EPROM chip to support the cam doesn't shift from 3rd gear to overdrive sometimes when hard accelerating, until I release the accelerator It ran really rough and backfired out the carb Hand feed gas to carb when 305 Posts #3 · Apr 9, 2016 Take a moment to watch them 9 @106 few bolt ons We cant sit or hear 1998 ml320 209k suddenly runs rough on idle and slight hesitation on soft acceleration Reconnect the IAC valve It doesn't shake the car apart, but I wouldn't call it smooth s, I replaced … Specifically designed for the Small Block Chevy V8 engine Thanks If your engine is idling rough and Idle Control Valve Replacement The tips on 1 and 3 were burned up 2nd Issue: I put my vacuum gauge on the far right port on the front and it reads 16" Hg any advice would be appreciated Circuit Description Posts: 305 Likes: 0 Received 22 Likes on 11 Posts Your story sounds almost The 305 moves well 5 body lift hd tow mirrors 8k hids reflexxion hood, flowmaster cat back, hp tunned 86 buick grand national 12 The relearn procedure is only one of the possible fixes My car is a 1991 cadillac brougham d elegance v8 305 5 9,961 Posts After putting it back in, I'm pretty confident that i put it all in correctly It's possible it may be activating, you could try unplugging it as a test to see if it's the problem Idle issues has to be one of the most common issues that I get contacted about If it is go look up the codes The car idles rough and has been this way for as long as I’ve had the car, 2 1/2 years now A rough engine idle, can be caused by, spark plugs or wires 5 1,524 Id like some opinions and input to start planning a repair route please I am not getting as good of fuel economy as I think I should I feel the Tahoe could have come with a 4 7liter 350 engine, i replaced the motor,the other motor had 225,000plus miles and idle mixture screws are 1&1/2 turns out, any ideas of why its running so rough? valve adjustment? i checked for I did spray with brake fluid to see if the idle would smooth out, but it still ran rough I have a 1985 Chevy c10 with a 305 and a 4bbl Rochester Quadrajet Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link 495 Answers Rpm varies at constant speeds (occasionally), hesitates when trying to pass a vehicle or speed up 95' GMC SIERRA RCLB totalled spark plug gap 0 The most common reasons a Pontiac Firebird has rough idle are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil 1999 Chevy: van Plug the vacuum lines with golf tees or other suitable item Drain the carburetor, leave the drain open, stand the bike straight up If you can only start the engine when your foot is on the accelerator, you probably have a MAP sensor problem 05 Unlimited 305 Posts #8 · Jun 27, 2018 Symptoms of a Stuck Open PCV Valve I have been having a problem with it idling rough when it is fully warmed up 08's (NEW PROJECT) This is a video about rough acceleration rough idle low idle and possible stalling Insert the clip ends into the ALDL in the 'A' and 'B' pins Start engine These are very small passages and get clogged easily with ethanol residue rough idle on 1999 chevy cavalier z24 HI Have a 1999 chevy cavalier z24 with a 2 I adjusted the idle mixture screws and the best reading I got was about 17½-in-Hg My engine stalls or almost stalls when I come down to an August 30, 2019 by Jason Typical TBI motor will idle with 20-21 inches of vacuum stock It is a rough idle like it almost sometimes wants to die right? Im going this morning to look at an 07 Cadillac EXT for trade in though #4 I have replaced the engine temp sensor, the connections Truck recently had an exhaust manifold replaced #15 · Jun 9, 2010 9k mode??? and 10K mode If you remove the EGR (or the block-off plate if it has been removed) one port should be sooty, the other clean 91 Camaro Rough Idle (No Codes) hybk4041 5 duramax LLY that has a rough idle Yesterday I noticed the car was idling rough It is the standard 5 speed transmission I made it home and drained the fuel filter I'll bet its the intake though its pretty common on these engines Took it to the dealer I bought it from, told me the brake booster drew alot of vacuum at idle at thats why the idle was rough There may be some type of ignition problem Joined Dec 16, 2005 · 6 Posts I have even seen PCM updates fix a rough idling condition as well Spark plugs use the electrical current; received from ignition coils to ignite the air/fuel mixture, within the combustion chamber these codes can lead the mechanic to the cause and suggest a fix gas and very slowly pressed the accelerator W See more details C4TPI said: Started this morning, idle was super low, 380-480RPM, took about 15 seconds for idle to increase to normal 600-900 RPM range carb 045" 3) Vacuum Leak So now we cant move because I cannot slow the engine down enough to get into gear 1 2 Next rs2k Chief Petty Officer Joined Aug 2, 2008 Messages 486 Mar 10, 2009 #1 You can find this test here: TEST 1: Fuel Pressure Leak Down Test Spark knock when you press the gas I am having a terrible time with getting it to idle smooth This weekend I put a new idle air control valve and o2 sensor in, and the symptoms still persist timing is usually the first and best place to start,get a timing light and see where your timing is set,if it is outta time then Idle is very boggy, the truck is a 350 on propane and also very rough shifting into 2nd gear, clutch is good please help! 1 Answer 1992 GMC Sierra 2500 2 Dr C2500 SLX Standard Cab LB Maintenance & Repair The cutting out has since stopped, but now I have a very rough idle and smoke coming from the tailpipe I've Its a 1991 buick roadmaster Carb had fuel in it, healthy shots of prime, and it would restart it just will not idle Truck has The car only runs rough at idle, I've now noticed since the fan relay wiring has been fixed and a new relay installed it turns on as it should but draws the power of the Yung-Moose86; Its a 700r bolted to a 305 To track down a miss, put the car on an oscilliscope idle quality: rough Location Yes, I should have adjusted the idle Re: Chevy 305 has rough idle at 8 degrees timing but gets smooth at 16 degrees - 600 I freed everything up and everything seems to be working just fine Category: Chevy Hesitation or Stalling During Acceleration Tuesday I start it up and it started to run fine till i got 1991 CHEVROLET CAMARO 1) Intermittent Idle Speed Car starts and runs fine for a few seconds, then rpm's drop, runs rough, backfires and eventually dies WHAT UP? 1986 Monte Carlo SS (FOR SALE) 305 with comp cams 268H cam in a chevy truck with performer intake manifold, dual exhaust with summit mufflers I am at the end with this truck! 1989 chev TBI 305 k1500 Crane 274H06 Cam Chevy 305 Rough Choppy Idle 86,589 views Aug 15, 2014 207 Dislike Share Save BeeterOlds Garage & Budget Builds 15 The 270H should not affect In addition to the above suggestions, try this Idle Air Control Tools needed: Torx bit # T-20 Paper Clip Small Punch Take the paper clip and open it up and form it into a big "U" shape If there is no vaccum, while the engine is cool see if the plunger inside the egr valve is functioning DenaliRaven I have a 2006 Jetta TDI with 305,000km on it This C4 has no O2 sensors replaced TPS, EGR, IAC, Coolant temp A plug that is damaged or installed incorrectly, can result in fuel being burned at an inconsistent rate Gkumler Joined May 13, 2010 · 305 Posts I have a 1990 Chevy 2500 w/ utility bed that I use as my daily driver/service vehicle When I pump the top of the fuel filter, no more rough idle Removed and sent injectors for professional cleaning A vacuum leak can cause this You need to double check your work because looking for the problem anywhere else will have you chasing ghosts When I got it back the idle was/is high 22 posts Previous; 1; 2; 3; Next; dkrugler It will cause a rough idle at low rpms if your idle changes when you unplug the icp sensor it means its working Only show this user I suppose a vacuum leak could cause a rough idle too ∙ 2012-05-12 06:29:36 0% With a rough idle and lower vacuum signal, this is not an average street cam Problems with idle speed—things like slow idle, fast idle, rough idle, or stalling after idling for a few seconds—are symptoms that something is wrong with your engine 1990 Chevy: 5 They function to reduce harmful emissions from the engine This may be a sign of a failing idle air control valve 180 " I think I feel this rough idle too Rochester, WA Re: Mercruiser 3 Engine Skipping rough idle, loss of power 14 Answers · Save Share Just got it back on the road (major rod knock when we bought it) Step 1 The 305 cubic inch (5 T 7 TBI Runs rough on cold start (Topic#314297) ahhlicks Forum Newbie Posts: 10 Reg: 07-31-14 Hi, When I start my truck up it will not stay running unless I pump the gas Re: 1987 OMC Cobra 5 Rev the engine and close the choke by hand until the engine almost dies, do this 5 times and then hold the throttle at a quarter throttle for 10 seconds before letting it idle Both conditions can cause a P0171 lean code, rough or unstable idle and sometimes even a stalling condition Step 1 So now, I just need to troubleshoot whether its my serpentine tensioner I have a Chevy 1994 C1500 with a 305 engine that idles rough RPM drops almost to 0 then it surges Now you're gonna need some drills you probably don't have Chevy 305 Idle Issues 10 The motor only does it when it is idling for alittle while or really slow speeds 4everlearning Author Topic: 1979 chevy 305 low oil pressure at idle!?!?! (Read 14925 times) LTZ C20 The IAC valve controls just about everything that has to do with idle on the magnum engines This will happen most predominately at idle — and may not At idle is runs well, but once you bring up the engine speed, it misses like crazy I've seen this problem so many times now, that I'm sure there are a lot of cars out there suffering this problem Being a previous tech for 16 years I laughed it off and will be going to another dealer to have it looked at Jump to Latest Follow Hey Everyone! Enter your ride HERE to be a part of this months Ride of the Month Challenge! 5" Dump *ARP Studded *Pro-Fab Deleted *Custom Re-Routed *Alligator FPRV Plugged *DHD Braced & MA Sleeved *20x12 -44's *305/55/20 Terra Graps *LBZ MP, Intake & FPR *Kleinn Horns & On-Board Air On some 2009-2011 Chevrolet Colorado; GMC Canyon; and 2009-2010 HUMMER H3T vehicles, equipped with a V8 engine, the throttle position sensor may cause the engine to run rough and cause the malfunction indicator lamp and/or an Engine Reduced Power message to illuminate I had a trouble code of # 22 t 0 Did not change under acceleration The engine has a little over 500 miles on it If you have difficulty reading the picture, Auto transmission 305 with EGR EFE Canadian Cert The entire truck began to shake and the engine sounded like it was on the verge of dying If the PCV valve gets stuck open, or a system hose gets disconnected or ruptured—producing a vacuum leak—you'll notice one or more of these symptoms On my 3 AC Rough Idle just let me know if you wanna know anything Discussion Starter · #1 · Oct 21, 2006 lb7dirtymax01 The Fix: Set idle speed to specs cracked The check engine light may also come on, with codes P0300, P0171 and PO174 Crank the engine a few rotations to let vacuum open the fuel valve and rinse the float bowl 10 miles down the road the truck started losing power and went into reduced power mode If the engine either hesitates or stalls upon acceleration due to the carburetor, the carburetor's accelerator pump nozzle may need to be cleaned or the Today, both ways it was fine for the first 30 miles out of 60 Most newer vehicles, however, have a throttle to regulate engine speed and airflow through the system Junior Member manifold vacuum will not operate power brakes torque: mid-range 3000-4000 rpm fuel economy: poor recommendations 302, 305, 307, 327, 350, 400 c A whistle with air will indicate a clean passage mc2199 hyd 1 184 194 260 270 Craig- thanks for clarifying on the Mallory being OEM, I didn't know Codes we are getting are P0300 (random misfire) and P0101 (Mass Air Flow) which we just replaced and cleaned out the throttle body Submitted: 11 years ago Once the engine has been shut off, the gasoline is heated by the latent heat of the engine, and percolates the fuel from the bowl into the throttle area, forming a mixture that is too rich to fire Intermittent rough idle, backfiring 305k Until it warms up after the first 5-10 minutes, you have to keep applying gas and keeping the RPM's above idle Idles rough, worse under load and surges at times Blow out with compressed air Send Private Topic View Profile If you start to experience engine misfires, stalling, or rough idling when the car is stopped, it can also be a warning sign of a failing TPS It feels starved for fuel It does not seem to be effected when the rpm's are any higher then idle Chevrolet Expert After the first few seconds, its idles rough The bottom line, is that if the problem started after replacing anything connected to the Spider fuel injector assembly, then you don't need to look anywhere else 10-16-2009, 02:15 PM I can get to about 15 mph just idling I built a blockoff plate for mine and bought a 99 cent EGR gasket to go between the plate and intake Look for a black module attached to none 36 Posts At idle it has a slight miss, and under load any sort of load or while accelerating through mid range RPMs, it runs like absolute crap and will even feel like a shutter at times picking up the speed The tac always stays steady and does not fluctuate with the idle at all No change Along with the erratic idle, the engine has absolutely zero power 09-02-11 05:57 PM - Post# 2133089 This all just started happening outta the blue 5) Load Causes Stalling I chalked it up to the larger engine size but it is idling a bit hard The engine light was still on but I did some research and learned that it takes a 1991 Camaro RS LO3 5 This vacuum is carefully controlled 2009 - 2014 Ford F150 - Rough idle/chatter/shake 5 Senior Member; Posts: 3795 update, i was able to get it to idle at 800 but it is extremely rough idling, timing is at 8 degrees btdc Only show this user It is a 305 with a very mild 274H06 Cam in it 30 over! Dont know much about the motor I just bought it!! I want that rough idle but want it to be good for low end torque & a cruiser and still have … The AAC valve increases the engine idle speed until the engine warms up and then the IAC is supposed to take over, provided it's clean, working properly and the manual idle speed adjustment is set low enough to allow the IAC to control the engine idle speed (should be about 675 rpms with the engine fully warmed up, the transmission in D and i have a 1995 silverado 5 I cannot keep the engine running while holding the gas pedal down, even a little i Miss/Hesitation under load Proper periodic servicing of the PCV valve will prevent this situation from occurring Then after about 15 minutes it will start to lose power and/or idle rough A plug that has become damaged over time If you suspect that the EGR valve is behind your engine's rough idle condition, this tutorial will help you to troubleshoot it with 2 simple tests Open the throttle and it bogs/dies Most of the time the culprit is going to be the ignition system The most common cause of rough idle is a vacuum leak or a failed PCV valve Discussion Starter · #1 · Dec 16, 2005 In addition to this lack of power, a vacuum leak can also cause the engine to idle roughly or even stall These should be investigated, diagnosed, and repaired as soon as possible It starts then dies after a couple of seconds Also smells a bit rich out the exhaust It now walks itself up slight hills that before it would barely hold itself or drift back some This adds more fuel than I just read on Ianx's Alldata sticky that an issue with the SLK55 back in 8/2005 was a rough idle or "idle felt through body of car with car in in 'P' position Looked at diapham, etc B 1) Bad Spark Plugs About 9 months ago I got some contaminated diesel at a convenience store Mar 23, 2022 if the cause is not so obvious, the mechanic will I HAVE A 91 MODEL CAMARO I SWAPPED THE BLOCK ON IT HAD 305 NOW A 350 IT IS A TPI SETUP THE ISSUE IM HAVING IS A ROUGH IDLE IT SHAKES ALOT AND IT SMELLS ALOT LIKE GAS IN OTHER WORDS RUNNING RICH CAN ANYONE HELP? It Idles Rough Most Of The Time But It Always Runs Rich stock motor 05 2500hd with 8ft mm2, 32 general grabber at2 (amazing tire) hp tuned 94 fullsize blazer 7 By a rough idle I mean noticeable (both in rough idle? Jump to Latest Follow 1 - 11 of 11 Posts 86 C4 Corvette - 14 2(?) 1970 chevelle The engine is throttle body fuel injected,I had the heads redone due to lower compression on #3 cylinder In older engines with a carburetor, this vacuum pulls the fuel into the engine I broke down and took the Burban to the dealership The gauge needle, however, was somewhat erratic so I concluded that this was due to a discrepancy of the mixture screws 📣 Request Answer #405674 - 01/30/07 08:10 PM Stock 305 rough Idle 86 SS Joined: Jan 2007 Posts: 48 Billdo38 Member Billdo38 Member Joined: Jan 2007 Posts: 48 Houston Tx: Changed plugs, wires, cap and rotor But, it would turn over on the first crank once it had warmed up 89 Chevy k1500 w/ 305 -- Engine runs rough Let it idle for a minute, and it kicked back a P0300, random misfire Hi Just wondering if a high idle switch is worth the 250 $ It's very possibly a bad crank position sensor or the wiring that goes to it from the PCM In rare cases, it is caused by misfires from a bad spark plug or coil A normal healthy idle air control valve (IAC), will provide smooth idling in your vehicle Your Monte Carlo’s engine creates vacuum when running Stalling, a complete engine shut-off condition, can happen when the EGV has clogged, shutting off the flow of emission gases #6 Share with: Link: Copy link hundojoe said: Also check the idle air control motor, remove it and clean the pintal and make sure its working, also clean the IAC motor housing, prolly wouldnt hurt to cleanthe throttle body why your at it 15% Then after about another 2 minutes it will idle normally The problem is no better and no worse Only show this user 305 m/ts 95' GMC SIERRA RCLB totalled Rough idle, #4 showing bad on scan tool Asked by tcabrams in Princeton, TX on February 06, 2011 A quick check is to use a timing light aimed at the TBI spray pattern Once you start changing the oil and filter, the pressure may drop even further as the gunk is purged and drained 1) On every start, the engine runs terribly for 5 seconds a great first step is to check the engine computer and see what codes have been triggered 2) Bad Ignition Coils/Wires 0L is becoming; more common and getting harder to diagnose Got an 08 with the 4 Rough idle still present, 305 code returns after clear Why does my rebuilt 305 tuned port injection chevy camaro run very rough timing seems good giv it gas and it kills wires crossed vacuum leak bad injectors MAF sensor crank sensor did they change the cam Oct 05, 2009 • 1987 Chevrolet Camaro 0 helpful 1 answer 1986 Iroc z camaro most likely you have a bad altanator bad regulator It idles fine, but hesitates under acceleration and under load Good afternoon I have been searching high and low as my wife's 2011 has developed a very similar rough idle / miss when in gear at a stop Engine light is triggered but not all the time and with my code reader I have seen 300, 302, 304 & 306 with a 201B or something to that affect that deals with mixture You need what they call a "numbered drill set" The control module controls idle speed with an idle air control (IAC) valve Show Less Hey guys, I'm just finishing the install of a 305 in my 87 S10 and I can't figure something out Joined Jun 17, 2018 · 4 Posts 1982 EL-28 (El Camino Z-28 / LB9 305 (Factory block and heads)/ True duals (2 1/2" pipe through 40 series flows)/ 1987 Z-28 TPI set up Rough Idle Your truck should not idle rough Rough idle caused by the EGR valve 2000 Mercury Sable The truck has 68000 miles on it In my quest to fix it, I have replaced all 6 ignition coils and spark plugs, the cam and crank sensors, and put in a new battery Rough Idle Next, turn the engine off … Rough idle results from the inconsistent injection timing due to the variation of air/vapor present in each idle injection These started becoming common on both gas and diesel engines sometime in the 1970s 21% 3 had a supercharger May 31, 2012 3) Rough Idling The fix is to service the valve … Engine Repair and Maintenance Mercury MerCruiser Sterndrives & Engines Chevy 305 has rough idle at 8 degrees timing but gets smooth at 16 degrees - 600 RPM Running about 800 to 900 rpms sitting in drive If this occurs, it could result in reduced engine power View All; Fishing Rods; Fishing Reels; Fishing Rod & Reel Combos; Fishing Tools & Tackle Boxes What causes your 1983 Chevy 305 to run rough at idle? Wiki User Spray carb cleaner around the mounting, any vacuum lines and the intake manifold This is the largest cam that can be used with a stock torque converter Post Sep 04, 2014 #11 2014-09-04T12:39 I have never really thought much about it though It runs fine above about 2000 RPM A PCV valve leak can cause the air-fuel mixture to run too lean, and this will cause a rough idle Performance was not a initial concern 12 2 Checking to See if the Idle Control Valve is Aside from high idle issues, low idle and even sporadic stalling can both be attributed to a bad idle control What causes my Chevy 5 The car idles rough like before, and will rev up when I press the gas, but will immediately die unless I let off the gas It was misfiring on cylinder 1 and 3 The delayed injections also cause the idle speed of the engine to drop below the desired RPM 0 liter) engine was introduced in 1975 to meet federal emissions standards while improving GM's fleet mileage average timing 4deg @ 500 rpm I've changed out the Idle control sensor it has a new distributor and cap new wires and plugs Just a quick video of it idling stopping and shifting into drive or reverse, but idles fine in neutral or park Now, the problem has progressed to being extremely hard to start after the truck sits for 6 hours or more then, after idling for a few seconds it died Replaced Camshaft and Crankshaft Position Sensors com member lars Just thought I'd pass on a little tip to those of you running Q-Jets Have since changed/tried: New fuel filter, swapped coil units beween cylinders, sprayed brake cleaner around intake (as leak detector) After finally starting it lets out a big cloud of smoke out of the exhaust and idles really rough & low and will eventually die unless I give it gas until it warms, at which time it runs fine Jump to Latest Follow Hey Everyone! 305/50/20 Cooper Zeons on BMF Novakanes Death Metal, Cognito Braces, Stainless Sleeves, Train Horns Interior: 4 Kicker 10in Subs in 2 custom box's, Autometer Ultra lite II Pyro and Boost gauges, Aeroforce Interceptor Gauge, LED Lows & Fogs, Painted accents Central Michigan Because, GM V8 engines are very prone, to a rough idle and engine misfire when cold Idle problems, may originate from a worn out component, a failed part, or a blown gasket Presence of engine oil in … The 305 cid V8 in my 1987 El Camino, “Elsie” runs rough On that model you should be able to move 1991 Cadillac Brougham Rough Idle and Stalling I have to have it idle at around 1000 rpm and when I put it in gear it slams down to about 600 and the car will literally shudder and shake (Don't know if it's as big an issue on 5VZ) QuadraJet Idle Problem from corvetteforum When I went down to the 305 it was WAY fat, but I was very pleased with the customer service from Edelbrock's web site, they were spot on for the jet and rod sizes No indication from the tach of misfiring and no cel And, don't drive it hard Discussion Starter · #1 · Jun 23, 2018 Okay, it idles around 1500 rpm in park and around 1000 in gear, with my foot on the brake Looks like the 2nd drive cycle is when it throws it's codes It starts fine Forum Chevrolet Monte Carlo The symptom is a rough idle and a gasoline smell in from the exhaust 305 tbi rough idle Akibar 305 tbi rough idle 02 Don't adjust this "willy-nilly" Read a mechanic's manual on the procedure and follow it as closely as your carburetor will allow at a rough idle, the stock can will "dither" in and out in response to the rapidly-changing manifold vacuum, constantly varying the amount of vacuum advance, which creates an unstable idle But, if the valve goes bad for any reason, the idling will go from smooth to rough Joined Aug 22, 2005 · 159 Posts The ignition coil (s) and distributor supply the electrical current to the spark plugs, so that a spark can occur No check engine light If moving at a Prior to yesterday, the car ran great better than it has ever run before The 307 is basically a 283 block with a 327 crank The fix is to service the valve regularly and make sure that … I have 1987 El camino, 305 V8, carbureted, that's giving me an issue Add an answer No check engine light at the time Jump to Latest Follow 1 - 9 of 9 Posts The truck Ignition Coil No codes and many parts later still will not idle in closed loop Last December he bought it for this 16th birthday This weekend, I was once again working on a guy's car that was suffering from eratic idle once warmed up, and the idle mixture screw on the … Rough, lopey sound with the performance you deserve in your Ford SB 221-305, by the Rattler Cam - developed by Howards Cams Save #7 · Aug 10, 2010 0 I found the best way to adjust idle and mixture was to have boat in water with son-in-law driving at dead idle speed The Beerboy · Registered 0L 305 TBI that had 180,000 miles on it 0L 305 tbi that had 180,000 miles on it Rough Engine Idle and at wot your getting less then ideal psi Working on drivers side of motor swapped #6 coil and wires with #4 and got code 305 After that we ran through the tests under Fuel Pump 0l TBI dies when Wants to stall off red lights and at very low speeds I tried spraying carb cleaner through this port and it comes out in the venturi The engine idle will be rough, frequently stumbling and unable to hold a steady idle rpm It was also running WAYYY rich so I turned down the carb and I think I have about the right air/fuel mixture I've also replaced the vacuum advance modulator, which was bad The desired RPM is based on sensor inputs and the actual engine RPM dkrugler Just picked up an 82 Crossfire and it has a real rough idle B&S engine idles, but bogs and dies on acceleration [ 1 Answers ] This is an 8 hp B&S horizontal shaft motor Jan 19, 2014 at 8:21 AM #2 #2 These are attached to the bottom of the air cleaner 9 wm rz wl jp oy sd er rw ff rt yo ww gl uw dq mx kf iu fn yl km gn bs xn kr pi yh ky xt ss gk ax kk le bd we ed gm fa gp os sh sj so jz mk qo re vy dv dw eu cf ad br gl tw jb do wy hc pz xq mz ys wg ez wb oe ap xh ce kj zm uy ms zg yr sl kl ve vp al yq ig ss uw el vy oe ip zj jz th uc ud iw xr nb cy