1999 GMC Jimmy

Tiny
BEAGER1
  • MEMBER
  • 1999 GMC JIMMY
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 106 MILES
Under neath the rear of this jimmy it makes a electrical buzzing sound is this the fuel pump and is it going out
Friday, March 14th, 2008 AT 9:45 PM

1 Reply

Tiny
PEAR69
  • MECHANIC
  • 1,482 POSTS
Check the fuel pressure. It should be around 60 or 65 psi. If lower replace the fuel filter and check pressure again. If still low then you may have a failing fuel pump. Loud pumps are rather common in these GMCs.
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Saturday, March 15th, 2008 AT 2:34 AM

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