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2000 GMC Yukon FUEL PUMP

Tiny
NDARLING
  • MEMBER
  • 2000 GMC YUKON
  • V8
  • 4WD
  • AUTOMATIC
  • 17,500 MILES
FUEL PUMP ISNT GETTING 12 VOLTS ONLY GETS 5 CHANGE PUMP 4 TIMES IN THE LAST 3 YEARS THIS TIME WE CHANGE RELAY WIRE TO PUMP AND PUMP LAST YEAR I WOULD BE DRIVING AND IT WOULD JUST QUIT ID WAIT A SECOND AND IT WOULD START RIGHT BACK UP HAD A DIAGNOSIS DONE THEY SAID THERE WAS NOTHING WRONG. PLEASE HELP ITS BEEN COSTLY
TY
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Thursday, July 22nd, 2010 AT 1:19 PM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
The gray wire at the fuel pump connector, is voltage for the fuel pump motor. Engine cranking, if that voltage is low, check the circuits at the fuel pump relay. Even if the relay is good, if there is a problem with wiring to the relay?
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Thursday, July 22nd, 2010 AT 3:01 PM

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