Buick Repair Questions? Ask a Mechanic for Answers ASAP
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At the fuel pump connector- with key on, engine off, take a voltage reading across the Gray ( + ) and Black ( - ) wires. There should be battery voltage. If voltage is good, a fuel pressure test should be done. Install the pressure gauge. With key on, engine off, fuel pressure should read between 52-59 psi. If pressure is low, check the fuel filter for clogs. If good, the fuel pump will need to be replaced. Please remember to leave a rating using the 'stars' or click 'Accept'. A 5-star rating is much appreciated! Rating or accepting my answer does not cost you extra.
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