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1991 Pontiac Grand Am car turns off if I suddenly hit the b

Tiny
RUSTYNAIL1984
  • MEMBER
  • 1991 PONTIAC GRAND AM
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 19,800 MILES
When I drive, and hit the break fast, my car turns off, and I have to wait like 15 minutes untill it will start up again, if I drive and hit the brakes slowly it wont turn off, just if I do it fast is when it turns off. I already changed the gas pump, spark plugs, and gas filter. My friend put that machine that reads the problem, and all it came out was that it needs an oil change? Please help
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Tuesday, November 4th, 2008 AT 12:57 AM

3 Replies

Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
Interesting machine your friend has.

While the car is running rap on the bottom of the fuel tank and see if it stops running. I am suspecting a possible defective fuel pump (I know you replaced it) or fuel pump connector.
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Tuesday, November 4th, 2008 AT 5:52 AM
Tiny
RUSTYNAIL1984
  • MEMBER
  • 2 POSTS
Im not sure what u mean? When u said rap the tank? Thanks for all ur help
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Tuesday, November 4th, 2008 AT 8:31 PM
Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
Take your fist and pound on the bottom of the fuel tank while it'ws running and see if it shuts off.
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Wednesday, November 5th, 2008 AT 6:37 PM

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