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98 Pontiac Sunfire won't start

Tiny
ALICIA512
  • MEMBER
  • 1998 PONTIAC SUNFIRE
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 140 MILES
It will turn over but not start. And when I turn it to the on position I don't hear the fuel pump. It makes a loud long "buzzing" noise that sounds like its coming from the dashboard. What could be wrong?
Monday, February 14th, 2011 AT 11:57 PM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Use a gage and check fuel pressure, engine cranking. How long since a tune-up? Any applicable trouble codes? Check for voltage and ground at the fuel pump connector, engine cranking. Gray wire is voltage, black wire is ground. If you have good voltage and ground with no pump action, I suspect the pump. If no voltage, check the injector/fuel pump fuse, use a voltage tester, the circuit goes hot when you turn on the key.
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Tuesday, February 15th, 2011 AT 8:17 PM

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