Average mileage: 83,258 (10,600–190,000)
Engines affected: 2.4L 4 Cylinder, 3.5L V6, 3.6L V6, 3.9L V6, V6
50 people reported this problem
Ive noticed that my car while sitting rather at a redlight or in park in the driveway has a miss yet no check engine light the ac was not running took to dealership at 26,000 and they even said it had a miss but since its not logging a code (light) its not worth fooling with yest it does however concern me and its still doing it
G6 has a miss or sputters at a stop.Had fuel line cleaned & tune up with spark plugs replaced.Still happening.Very frustrating.
Car just stopped running. Sat for awhile and started again running rough. Stopped waited then started right up.
All of these people with this same problem, clearly it is something general motors is doing wrong along with the other things(recalls) but you think they will fix it? No, why? because they are rich people who DONT CARE about anything except making millions. They make their products to fail, so that you have to spend money to fix it and they continue to make money!!! So here i am stuck with a 14,000 dollar car that i had for 1 week before it started acting up, and needs a new motor because it cost more to fix the piston! 14,000 dollars for a care that needs a new motor!!! My advice, NEVER buy from them!!! Wish i never got this stupid car!!!!
Started missing when you come to stop at a signal light. Very annoying. Took the auto repair shop.Hooked up too computer but not showing anything wrong. Did tuneup, didn't work. Next changed the throttle body. That didn't work. Checked gas tank, had some sludge and a little water. So took it off an cleaned and also cleaned the fuel lines. That still didn't work. Finally someone came from a dealership to the shop. Said he thinks he knows what it is. Had some kind of computer system from the dealership. Hooked it up. Showing it had a bad coil wire. Computer knows which one. So only had that one replaced for now. Guess what, it's working right now. So for now I very pleased.
my g6 also had a misfire problem on cylinder 1 and 3 with the 3.6v6 VVT engine, hey changed spark plugs and the ignition caps. i actually found the problem online. its not a 'G6" problem its a cadillac problem its there engine and its due to poor timing chains. if you let your oil change go past the 5000km mark even though ur display says 65% oil life remaining the chains expand with heat and throw the engine timing off. once it gets it half inch out ur engine light will come on. there are 3 chains in that engine. get it done before the crank gets ripped up
My car has been making an occasional knocking sound once it been driven for 20 minutes or so ( less then a week) and now the check engine light has come on.
ruff idle at stop lights and misses sometime at 35to 45 mile/hour driving down the road but still not throwing a computer code
My car will shake mostly at redlights or stop signs but the engine light did not come on. The engine light came on briefly and went off and I had it towed to the dealer. They told me that there was antifreeze in my oil and oil in my antifreeze, there was a blown head gasket and he named some other things that was wrong. they told me it will be approxiamtely $5,500 without tax and labor. I had my car towed to a garage. Just waiting for them to give me a price. Hopefully, it will not be as high as the dealer.
It has a skip going down the road
Car just stopped running. Sat for awhile and started again running rough. Stopped waited then started right up. will run a few minutes then will just stop???
Any ideas what to look at??
my rpms are going up and down. and my engine light is on like wtf lol I hate Pontiac's and GM they suck @SS my other car run better then my other car is a 1993 Nissan 240sx its has 187,000 lol and run better then my Pontiac g6 lol
Car has a miss started out randomly but now getting more common
Car started out with minor hesitation, didn't have its usual get up and go. I took it to my local shop. They replaced the spark plugs and did a fuel injection service. My car continued to have the same problem, which has gotten much worse . Trying to merge onto the highway it doesn't want to go past 40. If I try to push it the check eng light starts flashing. I brought it back to the shop. They did diagnostics and at 2st thought it was a bad sensor in the gas pedal assembly, but they replaced it and that didn't work. They did further diagnostics which pointed to the upper mainstream catalytic converter. They replaced that, and it still didn't work. I took it to the dealer who told me I had 2 bad sensors on the Engine throttle body. They replaced the whole thing. That did not fix it. I am still having this issue. My car has no power accelerating from a stop or after a turn. It chugs along at 20mph, (accompanied by a low mufflery sound) but then gradually picks up speed. My RPMs are all over the place. I still owe 4000 on this car and don't have any more $$ to dump into it for NON fixes. Does anyone know what could possibly be wrong??? This problem of minor hesitation got way worse after my spark plugs were changed, and I feel like it's got something to do with that.
Engine light flashing, engine idling rough, ran fine on Monday didn't drive Tuesday started it up Wednesday morning running too rough to drive Changed spark plugs, wires,and coil pack didn't fix the problem. Any suggestions
engine code reader keeps saying multiple random misfire cylinder one. 2 days ago i did allot of work to it. i replaced the plugs all 4 coils the mass air flow sensor the upstream and downstream 02 sensors for starters. unrelated to that 1 day ago i also replaced both front wheel hubs all 4 calipers, rotors, & pads as well as oil change, air filter and transmission filter change. the car at the time of all the work has close to 200,000 miles now but I'm getting really tired of the check engine light for this same reason when it should be fixed by now. Any help on what to do or what it could be would be much appreciated.
Engine idles rough and has a slight knocking noise changed all the lifters and replaced all the gaskets and replaced the throttle body and still no Change the car only has 97000 miles on it has been a total night mare just constantly needing something
Its has a tick kinda nd when i hook it up to a computer it tells me witch cylinder it is but havent fixed it my car is slug ish when u try to get up and go boggs down almost insted of my rpms going up constsntly its goes down and stays low and grsdually pickes up till about 4 grand .... Does this every time