1999 GMC Sierra Fuel Pump?

Tiny
C STARRET
  • MEMBER
  • 1999 GMC SIERRA
  • V8
  • 2WD
  • MANUAL
  • 75,000 MILES
After shutting off the vehicle, I continue to hear what I believe to be the fuel pump running. I can feel a vibration near the gas cap. Also, and probably not related, there is a loud clicking coming from the engine after I rev the motor in neutral (manual transmission). The A/C on the vehicle ceased functioning about the same time as this clicking noise started. Any suggestions? Thanks.
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Monday, October 20th, 2008 AT 3:52 PM

1 Reply

Tiny
RASMATAZ
  • EXPERT
Test the fuel pump relay and the fuel pump/oil pressure sending unit


https://www.2carpros.com/forum/automotive_pictures/12900_oil_sending_unit_and_fuel_pump_circuit_78.gif

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Monday, October 20th, 2008 AT 3:55 PM

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