On gm cars especially if the car is left with a dead battery, or has the battery disconnected for more that fifteen minutes the computer starts to loose memory ande the car will run ruff, die at stop light, stall on take off..... take to dealership have comput6er re
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Try a different machine to read the codes then post a reply ,i have no idea what could cause this on this engine as remember that anything over 1.6/2.0 litre is regarded as a big negine here in europe ,most i work on are under 1.2 ,but if its not accelerating from idle then i would suspect a vacumn leak to one of the sensors but not having much practical experiance then i couldnt say exactly
Your car acts like it needs a transmission service.That's where you should start. GM cars can act like the trans is shot when all it needs is a new filter. I don't understand how the dealer could miss it, though. Get back to me and let me know.
Apr 21, 2015 - When diagnosing an engine with a rough idle, there are certain things that must be ... If the problem does not reoccur, the codes will be erased by the computer. ... when accelerating the vehicle, which causes a higher fuel demand. .... it was water in gas...added added Gas LineAntifreeze/Water Remover.
You could have a bad or intermittent fuel pump. Not a cheap thing to have.
An OBD 2 scanner can read fuel pressure on the drive to see if your fuel pressure drops off at odd times to confirm. It can also tell if there are transcient vacuum leaks at idle which the engines idle air control cant compensate for.
Well for one, make sure you speed up slowly, dont HIT the accelerator. It may also be problems with your fuel filter. After you are stoped fuel stops running through the fuel pump/filter and then when you start going its starts to run through again and it cant keep up so it gets bubbles in it and doesnt move throught the filter easily hence the jerky accelerating. Good Luck
it can be couple of thing Try a fuel injector cleaner or new fuel injectors.it can be vacuum leak. Engines need a vacuum
to run especially at idle which is when your car dies. It could be a stuck
EGR. If the check engine light comes on it will store a code so take it to a
shop and pay them to read the codes. This may give you a starting point.