Fuel pump

Asked by GuruC6PHH Mar 07, 2019 at 11:39 AM

Question type: Maintenance & Repair

1999 Chevrolet pick up what would cause the
fuel pump to have no power?

3 Answers

17,585

First thing to check would be the fuel pump relay. Less than a $10 part.

16,900

I looked at info for 99 Silverado 1500--5.3 L engine. If you have different model or engine size, let us know. Note the diagram. Make sure battery has a full charge and connections all good. I need to ask, engine cranking, do you have spark at the plugs and fuel injector pulse? Key on engine off, can you hear the pump run for a few seconds? Any applicable trouble codes?

268,485

Fuel pump fuse, relay, wiring problems. Remember the fuel pump will only get power for a few seconds if the engine has not started and is running.

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