Fuel pump not engaging when turn on position

Asked by Jun 23, 2018 at 03:33 PM about the 2001 GMC Yukon SLE

Question type: Maintenance & Repair

When I turn my ignition on the fuel pump does not
engage I cannot hear it does this mean that I need
a replacement?

1 Answer


Possibly, but, I'd do some more testing. You see the fuse, check it. Engine cranking, check voltage and ground at fuel pump connector. The gray wire is voltage and black wire is ground, use a test light. If you have good voltage and ground with no pump action, suspect the pump. Engine cranking do you have spark at the plugs?

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