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1998 Pontiac Grand Prix Fuel pump cuts off

Tiny
KIM THOMPSON
  • MEMBER
  • 1998 PONTIAC GRAND PRIX
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 14,000 MILES
The fuel pump runs for three seconds and it cuts off. Replaced feul filter, mass air flow sensor and throttle positioning sensor and the oil pressure switch. We have checked the codes and replaced the sensors because of the codes. It is not throwing any codes now. We had a mechanic look at it and he does not know why the fuel pump ishutting off, but says the fuel pump is not bad. Any suggestions where to go now?
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Thursday, August 20th, 2009 AT 3:28 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check and test the fuel pump relay if okay -Power the fuel pump direct from the battery and see what happens-let me know-
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Thursday, August 20th, 2009 AT 5:35 PM
Tiny
PATBUSGUY
  • MEMBER
  • 2 POSTS
Fuel pump resistor is bad. Inside r front fender. Ck component locator or ask dealer tech
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Saturday, September 19th, 2009 AT 10:26 PM

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