Having problems with your 1994 GMC Sonoma ?
Have a rough idle that seems to be from a carbon build up any way to solve this
One way to try to decarbon is with air cleaner removed run the engine until hot rev up engine to about 2,000 rpm and pour some water ( a couple of quarts ) down into the throttle body pour as fast as you can without stalling the engine.This will create steam in the combustion chamber loosing up some of the carbon deposits .You may have to repeat more than once.. Then after drive on highway a little to help blow out...
Repair Help & Product Troubleshooting for 1994 GMC Sonoma
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Have a rough idle that seems to be from a carbon build up any way to solve this
One way to try to decarbon is with air cleaner removed run the engine until hot rev up engine to about 2,000 rpm and pour some water ( a couple of quarts ) down into the throttle body pour as fast as you can without stalling the engine ... 1994 GMC Sonoma
Have a 90 Chevy 1500 with a 4.3 v6 and a 5 speed I the pickup was running fine left from work no problems then get off the interstate. And the running really rough I drove it to work the next day same thing rough idle and rough running as I make my way through town once I get on the interstate it seems to run fine but goes right back the the rough idle when I get off the interstate I have checked the distributor cap and rotor I cleaned up the build up checked all wires every thing there seems to
Did you change the plugs in it, In That old of a truck depending on the miles on ot , If i had it i would be putting on a new cap and rotor, Not trying to clean it up, Allso it could be the control mudle breaking down, If it was never change, There c ... Cars & Trucks
I have a 1992 Corsica, 3.1, v6, automatic, all of a sudden idles extremely rough, have to push gas peddle way further to make it move, has a funny smell, possibly small amount of water in oil, (only shows up right after engine has been running and on first dipstick only) doesnt seem to be shifting right, idle in gear is so low and rough car seems like its gonna die but doesnt, seems like low pitch popping sound from tail pipe when in park. i read your previous q & a's and possibly head gasket bl
... Cars & Trucks
Problem with the 2003 GMC Envoy Rough idle when cold. once I have driven it...Ads by GoogleCar Brake Repair www.ServiceMagic.comJoin Our Network Of Top Rated Auto Pros & Get Targeted Leads Today! rough idle when cold. once I have driven it for about 20 miles or so it will idle when in drive like it should. I t will idle in neutral fine , just not in drive. I have used fuel additives, carbon vacuum, changed plugs. Nothing seems to work and mechanic can't find the problem.
... 2003 GMC Envoy
Ruff idle was wondring if problem could be/ o2 sensor/trottle control / I disconnected the MAF sensor and noticed that it is a little better but still ruff idle . From time to time . Example when i come off the highway and come to a complete stop . She starts to idle ruff but does not shut off . But when I connect to MAF sensor she will cut off . I also notice gas consumtion greater . I checked spark plugs and cables they all seem good no carbon build up . We just had a snow storm . Seems this a
... 1995 Lincoln Town Car
Rough Idle when cold runs seems to run ok hot but still almost stalls when you turn on AC and you are at a stop also noticed that the volt meter reads 9v with the AC and the lights on with the AC and lights off the volt meter reads 14volts I an not sure it thius has anything to do with the rough idle here is what I have replaced so far to solve this problem I have replaced spark plugs, wires, rotor cap, O2 sensor, and air control solenoid, fuel filter, air filter.
Mcdevito75 here, Sounds like a faulty voltage regulator, it"s 1 unit with the alternator, change the alternator, also the alt. supplies juice to the ignition switch, distributor abd plugs, thus a rough idle due to bad alternator. ... 1994 GMC Suburban
Neon idle My neon is running rough with a high and low idle back and forth. It revs up on it's own. It's worse with the A/C on and when you depress the brake pedal at a red light it seems to idle the way it is supposed to. I thought it may be a throttle position sensor but I also checked the mass air flow. I'm almost certain that the maf is broken. But I have also thought it could have a vacuum leak bc the brake pedal is hard to push like it doesn't have power breaks. Is there anything steps I c
Hi Michael, The heavy braking effort indicates that there is a leakage of air into the servo unit. The vacuum pipe connects to the intake manifold on petrol engined vehicles and has a one way valve. If that valve is leaking it will cause additional a ... Cars & Trucks
Rough idle when cold. once I have driven it for about 20 miles or so it will idle when in drive like it should. I t will idle in neutral fine , just not in drive. I have used fuel additives, carbon vacuum, changed plugs. Nothing seems to work and mechanic can't find the problem. Andy
Try renewing the coolant temperature sensor ... 2003 GMC Envoy
My 2001 Hundai Sonata (4 cyl) either idles very roughly or dies when idling or when I am stopped at a stoplight or stop sign or in traffic. The only way to keep the car from dying seems for me to keep one foot on the brake and the other on the gas pedal giving the car gas. My car has 185. xxx miles on it. Any suggestions? fixes? Thanks
OK!.... it's got more than 185.xxx miles.. right? (out of warranty). FIRST place to check:\0121. TPS - Throttle Position Sensor - it's a potentiometer (variable resistor) which sends voltage signals to the ECU (Engine Control Unit). If it is ... 2001 Hyundai Sonata
Vehicle: 1986 toyota "1 ton" pickup truck w/EFI L4 22-R engine. 250k miles After doing an ignition tune-up (plugs, wires, rotor, dist. cap, etc...), my rough idle issue has not subsided. Q: what should I check next? Fuel system? The engine runs well at 1k rpm and above but seems a little rich and boggy... very slightly. When trying to idle, the engine bogs down and stalls occasionally- sounds like it's missing. It is behaving the same way a carbureted truck does when the carb is clogged. Wh
Hi,Please 1-check the PVC Valve. Block off \012the PCV valve and see if the miss goes away. If it does; replace it.2-The other thing is to check the plugs to be SURE 100% SURE - they are factory rated for that engine. 3-check the fuel fi ... 1988 Toyota Pickup
Vehicle: 1986 toyota "1 ton" pickup truck w/EFI L4 22-R engine. 245k miles After doing an ignition tune-up (plugs, wires, rotor, dist. cap, etc...), my rough idle issue has not subsided. Q: what should I check next? Fuel system? The engine runs well at 1k rpm and above but seems a little rich and boggy... very slightly. When trying to idle, the engine bogs down and stalls occasionally- sounds like it's missing. It is behaving the same way a carbureted truck does when the carb is clogged. Wh
I had a 1987 carburator truck and you are correct, dirt was the main issue. However, I think you may have the same issue, but in a different way. I would look at your fuel filer for starters and then run a can of injector cleaner through. If that ... 1987 Toyota Pickup
95 volvo 940 turbo has had intermittent starting issue. Replaced crank position sensor and cleaned idle air control valve and problem mostly solved, but has now (6 weeks later) same problem but worse. Won't start at all, but if I hold gas pedal part way down it tries to start but acts flooded and won't quite start. Replaced IAC with junkyard part which tested ok, but no change. Plugs, cap & rotor & wires seem ok. Using small amount of stater fluid does not seem to help. Tried to test fuel pressu
Have you replaced your fuel pump relay? ... 1995 Volvo 940
Audi A6 1996 , cut out on the way home, started, and idles for a few seconds then chugs, if i floor the accelerator, car runs low revs, then cuts out. Discovered dirty fuel filter, replaced it, now it seems I cannot get car to start, loosed fuel filter to check for fuel, no fuel getting through, maybe an airlock, or has the fuel pump gone ? How do I solve Airlock problem ?
CHECK FUSE AND RELAY FIRST IF THEY ARE GOOD.SOUND LIKE FUEL PUMP IS FAULTY. ... 1996 Audi A6
Hi. I have a 2001 Dodge Durango w/ 4.7 v8 engine. This summer my engine recently ran hot. I replaced the thermostat. And that seemed to have solved the problem. The next day while the vehicle was idling in front of the teller machine, the engine started running rough, it sounded like it was misfiring. There was a backfire from the exhaust pipe I briefly heard rattling and knocking under the hood and the engine shut of. When I started the engine again, I had to hold the accelerator down to keep
I don't know if you have high miles car or not. First, timing has to jump time in order for it to be out of timing, Your timing chain is fine, it will streach little over time but will not and cannot jump time because is cha ... Dodge Durango
Pressure building in crankcase & blowing oil out the dipstick pipe and other weak seals. Appears that parts off the breather are missing although the diaphram seems to be complete. Idling and low revs = very rough. Travels well at 100kph except for blowing oil every where.
Change the PCV positive crank case ventilation valve. ... Mini Cooper Clubman
I have a 1992 Chevy Dually with a 454. Its fuel injected and my problem is this. When I start it in the morning it starts but runs and idles very rough. After I make a few stops and it gets up to temp. and I go to restart it I have to hold the accelerator pedal all the way to the floor and it just barely starts, when it does start it seems like its flooded. I have to hold it wide open while it clears out, the whole time blowing a ton of smoke out of the tailpipe. It will eventually kinda of clea
Hi,Did it run correctly after the rebuild? If so, has it gradually gotten worse or just all of sudden started having issues?If your fuel filter was plugged did it run better after changing it then get worse? If so, you may have rust in your g ... 1992 Chevrolet C/K 3500
1986 Chrysler Fifth Avenue 104,000 miles 5.2L 318 V8. When in park and running, it will rev up and seems as though all systems are good, other then kind of a rough idle. But when driving, you can't push the gas pedal down hardly any more than a 1/4 of the way. It sputters and shutters and vibrates and cuts out. When trying to accelerate, it has intermittent power, almost as though timing is off. Feels like the engine is dieseling or something. I have replaced air filter and fuel filter, an
Could be a computer problem but can't really tell from here. If you tap on the computer while the engine is running and the engine begins to run poorly that's a good clue.Check your fuel pressure. It should be between 5 and 7 psi. If not the pu ... 1986 Chrysler Fifth Avenue
Hi I have a toyota hilux 2006 turbo diesel dual cab 4 x4 which will sometimes idle rough every now and then.I have had it on a computer with the only thing showing was out was the fuel temp sensor was reading -41degrees so I had the sensor replace and it was still reading the same thing I have this check by a few mechanics and they Carnt seem to solve it it has 150000 kms it's a auto and it real annoying paying top dollar for my hilux and to have this slight problem with it.they say the injector
... 2006 Toyota Hilux 2.5
What do the engine codes 12, 51, and 17 mean on a 1995 Jeep Cherokee 4 cylinder , 2 whd, 5 speed. It has a rough idle, really low fuel mileage, and not much power. Just recently started this problem.... I have changed plugs, wires, cap and rotor already. Along with a oil change and fuel filter. Ran injector cleaner and cleaner thru the intake for carbon build up. Still not fixed the problem....?
Code 12; Means the PCM sensed the battery was disconnected and after 50 key cycles, this code will disappear. Code 17; Means the engine is cold too long after start up. Engine coolant temp remains below normal operating range during vehicle travel. T ... 1995 Jeep Cherokee
My 2000 Nissan Frontier sometimes fluctuates at idle after warm-up. I was thinking perhaps egr tube carbon build-up? Problem is I don't know if there are access ports to clean-up? If so I can't seem to locate them.
I don't believe EGR is the problem it only works at crusing speed. However, it it was stuck open it would rich you out at idle,\015\012\015\012Best thing to do is to test upstream o2 sensor and see whether the vehicle is burning rich or ... 2005 Nissan Frontier
Just bought a 1988 Ford Ranger 2.9 liter v6 today. On my way home from the gentleman's house whom i bought it from, the truck starts bucking and sputtering. When accelerating at highway speeds there seems to be a dead spot about mid throttle. After accelerating harder just to maintain my speed, the idle became really rough and there's a lot of hesitation. Once, it even died on me at a traffic light. I filled the vehicle's tank with gas just a few minutes after I bought it. I only live approximat
Well i'd call the basterd and ask him what he wants to do about it , or take him to court as he did not disclose these problems. Or did he? I would check the fuel system for leaks which causes engine to get air and less fuel than it requires or check ... 1988 Ford Ranger
2006 Freestar cut out once going down the high way. 45 miles later we stopped for a rest. When we started back up, it took several times before it stayed running, but ran very rough, and would stall if allowed to stay at idle very long. When we got back on the road, it seemed like it was going ok (no indicator lights, engine, fuel, battery... were lit) after about 5 miles we came to a traffic light, and it stalled and would not restart. It will crank over, there is fuel at the injector ba
... 2006 Ford Freestar
Rough idle slow to take off but smoothes out at 25mph seems way underpowered up hills
Sounds like you have either a fuel pressure concern or a restriction in the exhaust system. I would check (replace) the fuel filter first. Also check to see that you have the correct fuel pressure @ the engine.The fuel pressure at the fuel rail shoul ... 1991 Toyota Tercel
1993 Ford Tempo GL 2.3 Liter. Car will not start unless you give it gas, then it will run rough for about 20 seconds. Then idle will smooth out. Seems odd to have to start a fuel injected car this way. This problem started about a week ago. No drastic weather change to cause this problem.
Pull the vacuum line off the fuel pressure regulator and see if liquid fuel comes out. ... 1993 Ford Tempo
Golf 2004 mk5 1.4fsi rough idle and exhaust sounds like its louder
... Cars & Trucks