ENGINE

1999 Pontiac Grand Am

Tiny

amandakayesilver25

September, 5, 2013 AT 8:04 AM

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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Tiny

Wrenchtech

September, 5, 2013 AT 8:44 AM

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).

Tiny

amandakayesilver25

September, 5, 2013 AT 8:48 AM

Its a 3.4 ok so do I suggestions a fuel pump or a fuel pressure regulator?

Tiny

Wrenchtech

September, 5, 2013 AT 8:51 AM

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.

Tiny

amandakayesilver25

September, 5, 2013 AT 9:04 AM

Will be checking that today. Thanks

Tiny

amandakayesilver25

September, 5, 2013 AT 9:05 AM

Will be checking that today. Thanks

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