Car shuts off and will not start - 3.8L

[sbjnmo]

I have a 1999 Pontiuac grand prix with a 3.8L engine and have a serious problem. I can be driving down the road the the car shuts off. If I drive the car for awhile it will not restart after sitting just a few minutes. This all happens when the car is warm and about a half a tank or less of gas. Once the car sits for awhile it will restart.

Can anyone give me an idea of what might be wrong with the car?

[Awsum69]

Hi sbjnmo,

I had a simmilar problem with my 99 GTP. It would stall at red lights, but would start right up. It didn't matter if it was cold/hot, full tank or AC on/off. The dealer did all kinds of stuff to it, including fuel injector cleaning, replace fuel filter, tune up, 25,000 mile maintenance, ect. nothing worked. Finally one day I decided to replace the coil packs and the module under them. The problem went away and has not come back in two years.

Hope that helps,
G

[sbjnmo]

Originally Posted by Awsum69

Hi sbjnmo,

I had a simmilar problem with my 99 GTP. It would stall at red lights, but would start right up. It didn't matter if it was cold/hot, full tank or AC on/off. The dealer did all kinds of stuff to it, including fuel injector cleaning, replace fuel filter, tune up, 25,000 mile maintenance, ect. nothing worked. Finally one day I decided to replace the coil packs and the module under them. The problem went away and has not come back in two years.

Hope that helps,
G

Thanks I will look into this. I was also told that it might be a Fuel Pump Resistor. Did they say anything to you about this at the dealer?

[Awsum69]

Hi Sbjnmo,

The dealer never mentioned Fuel Pump resistor. They did mention Fuel Pump but fuel pressure was within normal limits. It is lucky that I stoped them at the $600.00 mark.

Regards,
G