2008 chevy cobalt

Asked by GuruH7MRM Aug 11, 2019 at 05:33 PM about the 2008 Chevrolet Cobalt

Question type: Maintenance & Repair

How do I check my fuel pump in a 2008 chevy
cobalt to see if it's working?

2 Answers
27,570

oilyspill answered 5 years ago

Use a fuel pressure gage and check fuel pressure. My info says about 55 psi, key on engine off. Hopefully there is a Schrader valve on your fuel rail, to check fuel pressure. If no pressure, check voltage and ground for the fuel pump. Any applicable trouble codes? Are you missing anything else, engine cranking, you have spark at the plugs and fuel injector pulse?

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Christopher answered 3 years ago

Climb under the car By the fuel tank have somebody in the driver's seat Have them turn it to the on position and if you hear the fuel pump kick on then it's working if u don't hear anything then start w fuses first if the fuses r all good then u need a new fuel pump

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