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1999 Pontiac Grand Am engine

Tiny
AMANDAKAYESILVER25
  • MEMBER
  • 1999 PONTIAC GRAND AM
  • 186,000 MILES
After about 30 mins of driving my car when you accelerate the car cuts out. It will start and act up for about 10 mins then the car will die, ( put in nuetral it cranks right back no problems) runs for a few minutes and does it again. Replaced fuel filter, new plugs and wires, and fuel treatment. Fuel pressure is running from 30-35. Its NOT overheating at all, and isn't losing water. Suggestions please?
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Thursday, September 5th, 2013 AT 8:04 AM

4 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
That's not enough fuel pressure.

2.4 engine
FUEL PUMP PRESSURE
With the ignition switch "ON" and the fuel pump "RUNNING", the fuel pressure indicated by the fuel pressure gage should be:
With EGR 284-325 kPa (41-47 psi).
Without EGR 358-405 kPa (52-58 psi).

3.4 engine
FUEL PUMP PRESSURE
With the ignition switch "ON" and the fuel pump "RUNNING", the fuel pressure indicated by the fuel pressure gage should be 284-325 kPa (41-47 psi).
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Thursday, September 5th, 2013 AT 8:44 AM
Tiny
AMANDAKAYESILVER25
  • MEMBER
  • 3 POSTS
Its a 3.4 ok so do I suggestions a fuel pump or a fuel pressure regulator?
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Thursday, September 5th, 2013 AT 8:48 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
The suggestion would be not to throw parts at it but test it. If you restrict the return line, it should spike to well over 50 if the pump is good.
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Thursday, September 5th, 2013 AT 8:51 AM
Tiny
AMANDAKAYESILVER25
  • MEMBER
  • 3 POSTS
Will be checking that today. Thanks
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Thursday, September 5th, 2013 AT 9:04 AM

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