2001 Pontiac Firebird FUEL PUMP

Tiny
TERRYHARMAN
  • MEMBER
  • 2001 PONTIAC FIREBIRD
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 100,000 MILES
HAVING FUEL PUMP PROBLEMS. FUEL PUMP WORKS WHEN WIRE IS RUN STRAIGHT TO IT. FUSES ARE GOOD. WHAT DO YOU THINK COULD POSSIBLY BE WRONG? THANKS, TERRY
Monday, February 1st, 2010 AT 11:36 AM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Welcome to the forum. I'd check the circuits at the fuel pump relay. Orange wire is voltage for load/switch side of relay, hot all the time. Voltage to the coil side of relay, green wire with white tracer, comes from the pcm. Engine cranking, if no rpm signal, may not be any voltage on that wire. Use a digital voltmeter to check for voltage.


https://www.2carpros.com/forum/automotive_pictures/170934_firebird_fuel_pump_circuit_1.jpg

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Monday, February 1st, 2010 AT 12:01 PM

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