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(1999 Chevrolet Monte Carlo)
in Las Vegas, NV on August 26, 2009
Car makes a whining noise. Was told Fuel pump is going out. Is that true?
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3 answers & 0 comments
Popular Answer
Totally agree with ProChevy. Plugging in a scan tool to see fuel trim figures, physically checking fuel pressure and delivery, and checking fuel pump amperage draw and or oscilloscope pattern are the preferred tests on a fuel pump to decide on its serviceability.
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Totally agree with ProChevy. Plugging in a scan tool to see fuel trim figures, physically checking fuel pressure and delivery, and checking fuel pump amperage draw and or oscilloscope pattern are the preferred tests on a fuel pump to decide on its serviceability.
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on August 26, 2009
Well it could be the pump but without hearing it's impossible to know. Suggest you have someone knowledgeable check it out.
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on March 16, 2010
My 99 Monte was doing the same thing. Start by changing the fuel filter. I changed mine and the whining went away. I also put a good fuel injector cleaner in on a full tank. Good luck
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