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1992 Pontiac Grand Am 2.3 quat 4 problems

Tiny
FOURTY-EYE
  • MEMBER
  • 1992 PONTIAC GRAND AM
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 137,000 MILES
I drive a 92 grand am. When im driving I could here the fuel pump louder than the car and it misfiring and poping when im giving it gas.I tuned the whole car up and still doint the same thing what can be the problem
Sunday, June 1st, 2008 AT 10:24 PM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Check the fuel pressure with a mechanical gauge, also check the fuel pressure regulator, specifically the vaccum line to it. If there is gas in the vaccum line the FP regulator diaphram is ruptured and needs to be replaced.
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Monday, June 2nd, 2008 AT 6:46 AM

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