I have a 08 grand prix 3.1 liter engine in the extreme cold some times it runs really rough, jerking like its starving for air or fuel. It doesn't do it very often, or every time. had same problem last winter. This is a very well maintained vehicle. new plugs, wires, coil packs. Runs perfect till it gets extremely cold. Help?

I have a 08 grand prix 3.1 liter engine in the extreme cold some times it runs really rough, jerking like its starving for air or fuel. It doesn't do it very often, or every time. had same problem last winter. This is a very well maintained vehicle. new plugs, wires, coil packs. Runs perfect till it gets extremely cold. Help? 1 Answer

I have a 1999 Pontiac Grand Prix gt. It has a really bad hesitation problem when its cold. 1 Answer

It has a really bad hesitation problem when its cold. It just acts like it doesnt want to go. I replace the knock sensor and crank position sensor and that has not fixed the problem. I changed those...

Grand prix won't charge when it is very cold, why? 4 Answers

Got a new battery. In the summer runs fine. When it gets below freezing, dash and lights run dim, and battery lite comes on. After it runs for a while everything will get bright and it will charg...

I have a 95 grand prix and had heads and gaskets done, and now it runs rough and stalls out 7 Answers

In may of this year I had a coolant leak. Had heads pressure tested. Intake gaskets,Exhaust gaskets, Head gaskets, head bolts,Manifold gaskets,EGR gaskets, & Pcv grommet replaced. New water pump, new ...

I have a Pontiac Grand Prix 2001 model it starts up and runs good for about three or four seconds and then dies as if I turn the ignition off why is it doing that 3 Answers

I have a 2001 Pontiac Grand Prix SE it starts up and runs fine for about three or four seconds and then dies as if I turned off the ignition why is it doing this