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  1. #1

    Default 1999 GMC K2500 Suburban fuel pump noise

    I am looking at a 1999 GMC K2500 Suburban. I can hear a buzzing noise coming from the back up around the gas tank. I am guessing it is the fuel pump. Should a fuel pump make that mach noise when I stand by the rear of the Suburban?

    ---------- Post added at 10:52 AM ---------- Previous post was at 09:58 AM ----------

    Doing some reading on this forum I found the answer to my question.

  2. #2
    Sr. Apprentice
    Join Date
    Apr 2011
    Thornton, Colorado, United States


    Was it the compressor for the air suspension?

    2010 GMC Sierra SLT
    2007 Chevy Suburban LTZ 4WD, aka BB

  3. #3


    I did not know it had air suspension. From what I have read here the noise is from the fuel pump.
    1997 GMC K1500 Suburban
    1970 Pontiac Tempest T-37
    1970 Lemans Sport Conv.
    2000 GMC Safari

  4. #4


    Its the fuel pump. Its normal to hear it, but sometimes if the fuel filter needs to be changed it will get louder as the pump is working harder to pump the fuel through the fuel dirty filter.

    2005 Chevy Silverado Z71 Crew Cab
    6" Skyjacker lift w/Edlebrock dual front remote resoviour shocks, single rear remote. Rancho skid-plate.
    17" x 9" M/T Classic Lock Wheels, 35" BFG A/T or M/T tires
    4.10 PercisionGears w/factory locker, T/A Performance rear-end cover
    Banks CAI intake, ported throttlebody, JBA coated headers, over-sized Magnaflow cats, Magnaflow cat back exhaust, Diablo tuned
    B&M aluminum deep transmission pan
    Warn brush guard w/Warn 9.5 XP winch, PIAA bulbs, Line-X bedliner, AWS Black tool chest, Extang tonneau cover
    Weather Tech floor mats
    Cover-Craft seat covers
    Dash mat cover
    Formula One window tint
    One black Lab in rear seat.

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