3.8 litre Stalls at stops

10

Asked by May 11, 2017 at 08:37 AM about the 1999 Pontiac Grand Prix 2 Dr GT Coupe

Question type: Maintenance & Repair

When I pull up to a stop light or sign the car dies. Car will restart after about a
minute but only if I hold the throttle to the floor. What could this be?

5 Answers

5,105

Most likely a fuel filter, or fuel pump issue. This is a known issue with the GM 3.8L V6. Best of luck!

3 of 3 people found this helpful.
10

And the vehicle would still run fine and have normal power at rolling speeds?

1 of 1 people found this helpful.
5,105

Yes. I fixed a 2000 Grand Prix the other day that had the same issue. I used a rubber mallet to bang (lightly) on the fuel tank. This freed some of the residue that collects at the bottom, and her car ran fine until she could afford the fuel filter (which I swapped yesterday). The car runs perfectly now.

2 of 2 people found this helpful.
Best Answer Mark helpful
4,465

Doesn't sound like a fuel issue at all. A failed fuel pump doesn't just start working again all by itself. Have the car scanned for trouble codes. The computer probably knows what's wrong. You just have to ask it.

pick up coil

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