Questions & Answers for: Pontiac Grand Prix rough start

Engine running really rough...whine sound when it isn't. 99 Grand Prix GTP. Engine is running really rough. Oil and coolant levels fine. No leaks. Service engine light comes on and then, under ...

...rough,all lights will dim,if i hold the idle up it will recover it self,now when it starts doing that,car will dye out but will re-start.thought i smelled plastic burning.and on rare ocassions after ...

car idles rough, when i step on the gas it bogs out, dies @ stops i have a 93 grand prix the problem started when i was driving at 70 mphs it idles real rough and just bogs down real bad when i get to

car runs rough when cold 3.8L starts after 2nd or 3rd attempt, then runs rough when cold, after a couple minutes it seems ok. replaced spark plugs, wires, fuel filter, upper intake gaskets and plenum,

...start and will immediately die. If it does stay running for a minute or two, it runs very rough (like it's running on 4 or 5 cylinders) and blows black smoke. If you wait a while, (10 minutes to an ...

2000 gran prix 3.1 runs fine while driving, but when stopped at a light starts to idle rough Take the EGR Valve off and clean all the carbon out of it using something to scrape with and use a ...

...start. spits and sputters and dies. If it does start it is rough then it revs up to 2000 rpm's and dies. Exhaust smells bad when it is trying to start. start with checking the fuel pressure ...

rough shiftng transmission shifts smoooth at start after 10 r 15 mins starts to whine n shift rough on up shifts,donwshifts fine I think your gearbox oil is probably a slight bit thin. As the oil ...

rough idling when it does start. Sometimes I have to push the throttle down about halfway. It also puts out blueish gray smoke on idle. I've tried everything but FPR and Map Sensor Better get this one

2006 pontiac grand prix running rough but no codes starts but barely then idles rough no codes are showing . it turns over normal but when it starts it's almost like it barely running then idle picks ...