1998 Pontiac Grand Prix Stalling

Tiny
STUMPED IN SPOKANE
  • MEMBER
  • 1998 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 114,000 MILES
I have a 1998 Pontiac Grand Prix with a 3800 Series II Supercharger. Recently it has been stalling for no apparent reason. While driving on a highway, arterial, or even in a parking garage it begins to shutter and then stalls. Just before it stalls I recieve a "Service Engine" light. Sometimes it will restart, and other times it won’t. I have added fuel additive, changed the fuel filter, fuel pump, spark plugs, and checked all the basics, oil / filter, air filter etc. But with no success. Any ideas?
Monday, March 10th, 2008 AT 2:24 PM

2 Replies

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Have the PCM scanned and retrieve the codes. Most auto supply stores will do it for free.
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Monday, March 10th, 2008 AT 5:58 PM
Tiny
STUMPED IN SPOKANE
  • MEMBER
  • 2 POSTS
The problem is that it is intermittant. I have had it scanned and it comes up normal. After it stalls it will restart after approx. 5 minutes. How much is a test box? I feel if I could scan it when the car stalls I might get a fault code.
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Wednesday, March 12th, 2008 AT 2:00 AM

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