Buzzing motor/pump sound in driver's side footwell

Discussion in 'General Chevy & GM Tech Questions' started by cosm3os, Dec 19, 2010.

  1. cosm3os

    cosm3os New Member

    I have an 05 1500 Suburban. Since it's gotten cold, I've started noticing an intermittent buzzing (sounds/feels like a small pump or electric motor) around the driver's side foot well. It seems to only occur when I pull away from a stop, and it hums for about 2 seconds. Any ideas?
  2. ghotachevy

    ghotachevy Rockstar ROTM Winner

    U sure ir not spinning the tires
  3. cosm3os

    cosm3os New Member

    It's definitely coming from the front left. At first, I thought it might be a seized caliper or a bearing, but after paying attention to it, its definitely not those. It sounds like a bad pump (not an electrical buzz).
  4. Dave D.

    Dave D. New Member

    If you have traction control, perhaps you can turn it off and see if the noice goes away.
  5. cosm3os

    cosm3os New Member

    If you are implying that it might be the TC coming on because its sensed lost traction, its not. I know what that sounds like, and this is not in low traction circumstances.
  6. FireRed

    FireRed Rockstar 100 Posts

    Try disengaging the traction control using the button, if no change pull the 60amp fuse for the ABS system. When my ABS pack went bad it went intermittent then died and caused the pump to run continually, I pulled the pack and had it rebuilt a pain but worth the effort. The dealers charge about $700 for the job, mine was rebuilt with heavier solenoids for $150. I went without ABS for about a week with shipping back and forth.


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