4TH REPLACED FUEL PUMP WON'T COME ON

1999 Buick Century

Tiny

Farmer's Daughter

January, 9, 2011 AT 12:30 AM

1999 Buick Century Custom V-6 3.1 Litre 2 Wheel Drive ---
fuel pump measuring only about 5 volts and not coming on. Any suggestions, please?

FOUND 330 RELATED QUESTIONS

2 Answers

Tiny

Wrenchtech

January, 9, 2011 AT 1:10 AM

The fuel pump relay has a "prime" terminal coming off it. You can apply 12v to it to see if that gets you 12v at the pump. That will isolate the bad part of the circuit.

Tiny

rasmataz

January, 9, 2011 AT 1:12 AM

Check and test the fuel pump relay, the computer control of the FP relay circuit and the fuel pump and oil pressure sending unit-

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