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2003 GMC Sonoma electric fuel pump

Tiny
RICHARD GUTHRIE
  • MEMBER
  • 2003 GMC SONOMA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 12,600 MILES
THE CHECK ENGINE LIGHT CAME ON WHILE DRIVING, VEHICLE RAN OK FOR 5 MILES. SLOWLY STARTED TO LOOSE POWER AND WITHIN 10 SECONDS ENGINE STALLED AND COULD NOT RESTART. THERE WAS FUEL IN THE TANK, BUT NO FUEL TO ENGINE. REPLACED ELECTRIC FUEL PUMP IN TANK WITH ORIGINAL EQUIPTMENT, REPLACED FUSE FOR FUEL PUMP WHICH HAD BLOWN, VEHICLE STARTED UP BUT BLEW FUSE AGAIN AFTER RUNNING FOR 10 - 15 SECONDS. ALL ELECTRICAL WIRES FROM FUSE BOX TO THE FUEL TANK SEEM FINE, NO PINCHING OR DAMAGE CAN BE SEEN. WHAT WOULD CAUSE FUSE TO BLOW AFTER OPERATING PUMP FOR 10 - 15 SECONDS?
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Friday, August 14th, 2009 AT 9:51 AM

2 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Hello, if your talking about the ecmB fuse? The pcm gets voltage off the same fuse. I'd have to check the amp draw for the fuel pump. Did you change the fuel filter, when the pump was changed?
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Friday, August 14th, 2009 AT 10:19 AM
Tiny
RICHARD GUTHRIE
  • MEMBER
  • 2 POSTS
Yes, the fuel filter has been replaced recently.
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Friday, August 14th, 2009 AT 11:13 AM

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