Gasoline - Chevrolet - Suburban - Flex :: 2008 - Slight Stumble When Idling With The Brake On Or In Park
Mar 10, 2011
I have the 5.3L FLEX Fuel with 98K miles. I have purchased this 2nd hand and having a slight idle stumble when in park as well as in drive @ a stop light...etc. If i am under way, the vehicle runs flawlessly. When i am idling with the brake on or in park, there is a slight stumble that is driving me crazy. I have replaced the high dollar IRIDIUM plugs but did not replace the wires...they looked fine. I did clean the throttle body. I get fuel from different places and it does not make a difference. I have not cleaned the fuel system professionally but I have used OTC additives such as SeaFoam. No codes are exhibited on a diagnostic computer or any updates available for that matter.
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"step on gas, truck feel like it is pulling a house, slight buck, but with more gas it moves, it has good presure out the exhast, all wheels are turning freely, engine idles great has lots of power,"
tested, cyl pressure, fine
check engine timing, fine
made sure all wheels spin freely, fine
check all fluids, fine
slight pinging sound can be heard, from time to time from center of truck. I'm thinking torque convertor. Feels like engine is binding only when you put it in gear.
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How do I adjust the parking brake on my 2001 Suburban? It is a 2wd 1500 model.
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My Chevy Venture 2003 approx 120 thousand miles is idling high at times. It will drive fast. I can feel it speeding up even when I am not pushing on the gas. When I put the car in reverse it flys backward (I have to keep my foot on the break to back up at a safe speed) and then when I put the car in park the engine is VERY loud. Again, this does not happen all the time. Usually when I drive it over ten miles. I thought it might have something to do with the AC, but I played around with that (driving with and without the AC) and that did not factor in it.
I took it to my own personal mechanic and he couldn't find anything wrong with it. I then took it to a dealership and they said they couldn't find anything wrong with after doing their hundred dollars worth of diagnostics and said they needed it to actually be doing it..what they called a hard fail...for them to know what was going on. . They drove the car for quite some time and nothing happened. I drove it all this pass weekend and nothing happened. It might go a week or so without doing it. Thenn it does it. Usually I can turn the car off and restart it and it will be back to normal. The check engine light is NOT on. Any clue as to what might be going on?
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Vehicle is a 94 Suburban. The front brakes were done approximately 14K miles ago. Rear about 10K miles ago. Ever since the front brake job (new rotors, pads) there has been a sound, sort of like spring tension being released whenever I (quickly) release the brake pedal. I think I notice it now more than ever because I don't have working ac and the windows are usually down. The thing is, if I slowly release the pedal I hear nothing. When it does happen it is definitely coming from the front and is more predominant (I think) on the right side. So far I have yet to hear this sound coming from any other vehicle stopped beside me in traffic so something must be out of whack.
I mentioned this to the mechanic who did the brakes (only shortly thereafter) and he checked it out and said nothing was amiss. Recently I had new tires installed so I asked the (different) mechanic to check the brakes again (front and rear). Apart from cleaning out the drums and a minor adjustment on the rear they said everything was good. Now I've never had any issues with stopping and I've had a few hard braking episodes without incident but this snapping noise for want of a better description is driving me nuts. One final observation: I cannot get the 'sound' to occur when I am sitting in Park and depress and then quickly release the brake pedal.
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2008 2.4 GLS auto, 64000 miles
Only taken this car on 2 highway road trips. 2 years ago = 34mpg on 900 mile trip (@36000 miles), last week = 31 mpg, EXACT same trip, this time in December, last time in September. Other difference - slightly perceptible tick noticeable if I stand in front of car idling.
Bought July 2009 (almost 24 months old) @ 32000 miles, oil changes every 3000 miles since, tranny fluid at 60000.
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About three weeks ago I noticed a slight shudder in my 2008 Ford Taurus with app. 75,000 miles (automatic). It did not come from the steering wheel, but the car itself seemed to be shaking, but only slightly. Like someone who's had too much caffeine holding out an unsteady hand kind of shudder. It was going in for an oil change anyway, so I had my mechanic check it out, even thought the shudder was gone the next day. It came back, for a few moments while the mechanic was driving. He couldn't tell what was causing it, but said not to worry.
Two days later when I was in the car for the first time that day the car jerked when I put it in reverse out of park. I checked the transmission fluid, and, sure enough, it was about a quart low. All symptoms went away. I took it back in to double check that there was no leak and that everything seemed in good working order. The car was given the all-clear.
Then this week the shudder returned, again, only sometimes. It doesn't seem related to temperature, distance driven, or weather. And the maddening thing is that it only does it sometimes. I checked the transmission fluid again and it is still in the safe zone.
Two days ago, after being parked overnight, the car shook very noticeably for about ten seconds the first time I switched it out of park, first into reverse, then into drive. This was different to the other shudder (I know, seriously). This was a shake, like the bass in a super strong stereo was cranked. Then it stopped and the car drove just fine. I parked it for twelve hours then switched the gears again. Nothing out of the ordinary happened.
Today it had no issue when I first switched gears, but while I drove (for about a half an hour) that original slight shudder was there. This time at all speeds, not just low ones. I went where I needed to go, drove it again about four hours later and it was fine. No shudder, nothing and this drive went through road work with stop and go traffic as well as some time on a highway at speeds up to 55mph. I drove it another time after that, and again, no symptoms. Finally, I drove to the store. The shudder had returned. I parked, shopped for about 15-20 minutes, returned to the car, and it hesitated to accelerate as I pulled out of the spot. It did not jerk or seem to try to catch up. It simply delayed, but accelerated smoothly.
I parked again and let it rest for about 10 minutes, started it up, and no trouble at all. Even that weird shudder was gone. I think this car is toying with me. I'm taking it back to the mechanic, but the trouble is that it doesn't always have these symptoms. I drove it Thursday on a two hour trip and back again with no issues at all. This might make it difficult for the mechanic to diagnose, but at least it's a guy I trust. There are no warning lights on, no smells (unless they are faint as I don't smell things well), and no strange sounds.
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2003 2.4 base Santa Fe with 167k miles. It's having an intermittent stumble while idling and at take off once the engine is hot. I have replaced the plugs, coil pack, IAC, intake and cleaned MAF as well as replaced the PCV valve. Also checked and no vacuum hoses are misplaced or missing.
After some reading it appears it may be the EGR? I ordered it to replace just because I'm running out of things to try to replace without going to a shop.
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I have a 2008 Chevy Impala. I've owned it for 14 months and put about 12,000 miles on it in that time. It's had basic servicing (rotations, oil, oil filter, cabin filter, etc. changes). It hasn't given me problems---but suddenly I have one and I'm not sure how major it is.
I made a drive from New York to Western Mass yesterday...couple hundred miles, but nothing huge. It drove fine all yesterday after I arrived...again, no problems. This morning, I went to start it...everything's okay. But then I went to shift it out of park...the button will not depress. I restarted a few times...no luck. I kept trying to depress the petal to shift it; I couldn't even shift it into neutral when not started. I am not sure what in the world is going on.
I've read numerous forums on this---it seems to be a common problem with these cars. What's not so clear is what to do with this. Responses range from---stick a screwdriver into some hole all the way to just go on and junk the car, it's useless. That's why I am coming here to get clearer guidance on resolving this problem, hopefully in an economical way.
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4 days ago, my '04 Chevy Aveo (89,300 miles) would not shift out of park and no brake lights were coming on. I had to use the shift lock release to start the car in neutral, and I took it to dealer. Dealer replaced the brake switch. One day later, the problem returned. I took back to dealer, and they showed me that the light blue "15" stop fuse (the right column of fuses, second one down) had blown. They replaced. It again worked for a day, and the problem came back. Each time I put a new 15 fuse in now, it works temporarily, but now fries either immediately or within an hour. In order to drive, I still have to use the shift lock release, which isn't great, because it means I have to drive without brake lights.
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Ok everytime I am stopped at a light or even when my car is in park, my speedometer begins to jump up and down, usually it will jus eventually stop, yesterday the engine started to rev then the car just shut off while I'm just sitting at a light, then my headlights began darken right before it shuts off. What could the problem. 2008 Chevy Cobalt
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2004 accent, manual, 114k miles. for the last 2-3 years it had a slight stumble at idle, and it was getting 36-38 mpg mostly highway. As part of a check on the starter function, I carefully cleaned the corrosion off of both thick wires going to the starter solenoid. When I started it again, the stumble was gone. Then, after almost 400 miles of mostly hy driving, my mileage was 42+. It has never been that high. Is it possible that the corroded wires caused both a stumble and increased fuel consumption? I did nothing else to the car, and most of the hy driving was freeway at very high speed.
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My Van has a slight stumble when I am going along between 25 and 55 mph and just barely touch the gas. Little more than touch the gas and it stops, full acceleration and it runs great...
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My wife has a 2008 Chevy Impala with over 80,000 miles. When the weather is cold, the heater will blow cool air while in Park, even with the car warmed up. Then, once it is put in Drive, the heater begins to blow hot air again. Again, all of this time the engine temp gauge is in the middle position.
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I have a 97 F150 4.6. The truck has developed a slight stumble/misfire when under acceleration. Once at speed it runs fine. It has not given any codes. I've checked for them several times. The plugs and wires have been changed. Is it possible that a coil pack could be bad without throwing a code?
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I am new to Super Dutys but i love them! Altho mine is not being so nice. It has the 5.4 in it. When its idling it has a stumble to its idle with a pop every now and then out the exhaust. It revs fine when its first started. If i pull out on to the road and start away easy its ok a slight miss but if i put the throttle down its just falls on its face. But if i get it up to cruising speed its ok as well. But even at cruising speed more then 1/8 throttle and it starts missing and falling on its face. What it could be? It smells like its running lean as well.
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So my buddy has a 2001 escape. It has a shudder at 1k rpm in park and neutral. It's not nearly as noticeable in drive. I scanned it for codes and there isn't one. Ran a power balance on ids and it's straight. Doesn't miss during the shudder either. Has all new coils and plugs. I cleaned IAC. MAF. Ran sea foam through the engine. And there is Lucas oil conditioner in the oil and Lucan fuel injector cleaner in the gas. It runs amazing other than that shudder. What could it be ?
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I have the above mentioned car with 50876 miles. I noticed that the steering wheel causes a click in the suspension when turned left or right whether stationary or with the brakes engaged. Also I noticed a thump felt through the steering wheel while doing the same action. What could be causing it, I checked my power steering pump and the fluid is brownish-red in color and no leaks are visible either on the ground or around the pump. I also got under the car and there seems to be no leaky CV boots ( i had to look these up to know what they look like).
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What could cause this? I have 100k and I only notice this if in park or neutral at 1500rpms. It goes away before and after and it seems to drive very smoothly. I had a bad alternator and I just replaced it but the "new" one is making a high pitching ringing so I'm having the shop change that out for a new oem. Any chance it's the alternator or could this be something else. I have sea foamed the throttle body recently and cleaned the maf recently and changed the air filter. I didn't do plugs but they are do at 120k
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A couple questions I have about my truck. I'm still new to the F150.
First, my truck has an Ecoboost and I have a slight stumble/hesitation when you start the truck cold. It clears up within 10 seconds and doesn't seem to affect drivability whatsoever.
Second, it seems that only my driver side mirror has the "dimming feature" to it. Is this normal?
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So from what I have gathered online, it is an injector(s) issue. I've only had it happen to me twice at that speed but when I came to a stop afterward, my truck was barely idling.
I'm not sure if my sct programmer is able to show injector codes but it will show gp codes. I guess my question is are failing injectors that intermittent typically? Also, much luck with Rev X clearing that issue up?
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