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1997 Pontiac Grand Prix car shuts off

Tiny
RHALPINE
  • MEMBER
  • 1997 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 130,000 MILES
My car hesitates at the initial start up. If it starts. And while diving, it frequently shuts of when I let off the accelerator, or come to a stop, but starts right back up. If it sits for awhile it while start right up as well. I thought it was a fuel problem so I changed the fuel filter. I also hooked up to the obd2 port and it read codes for mass air flow and vaf sensor. I checked for any vac leaks and noticed a couple small warps on the upper intake (which is plastic) and wondered if that could be it. Do you know if this is a common prob with pontiacs? And what would be the ideal way to check for a leak in that area?
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Saturday, March 14th, 2009 AT 1:34 PM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
If you are getting a MAF sensor error, it will cause the symptoms you describe.

You can clean the MAF, a MAF cleaning spray is available at most autoparts stores.
Be carefull not to touch wires inside MAF.

If cleaning doesn not help, replace MAF.
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Sunday, March 15th, 2009 AT 8:17 AM

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