Posted on Apr 04, 2009

Geo Metro 1994, diagnose no fuel presure problem.

Car ran fine and then would lose fuel presure and would stop running. Started up after sitting for awhile but problem will happen more frequently. Changed fuel filter.

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Anonymous

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Posted on Mar 12, 2010

Anonymous

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Joined: Jul 11, 2009

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Quite a few things can cause a car to die after idling for awhile, but if you have verified that the fuel pressure is actually dropping when the motor dies, the likely culprits are:
1) Electric fuel pump in the gas tank is bad
2) The fuel pressure regulator (on the throttle body) is bad
3) An electrical problem in the power to the fuel pump (like a bad fuel pump relay or lose ground wire to the relay's circuit)

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