98' Silverado Wiper Motor Buzzing, Wipers don't work.... Any ideas?

Discussion in 'General Chevy & GM Tech Questions' started by dmaves, Aug 9, 2010.

  1. dmaves

    dmaves New Member

    So on my way to work this morning I tried using my wipers, but all I got was a buzzing/humming sound coming from what sounded like the wiper motor. Any ideas as to what the problem may be? I did a little research and some people said it may be the solder connections are cracked. Or could it be the motor is bad and I should just replace that?


  2. murdog94

    murdog94 Epic Member 5+ Years 5000 Posts

    Id shoot for a wiper motor.. Welcome to one of the most common problems on the GM trucks of our generation. You could try and tap it with a hammer (lightly) if you need it to get you home...
  3. silveradotrailblazer

    silveradotrailblazer Epic Member 5+ Years ROTM Winner 5000 Posts

    About ten years ago my wipers quit working on my '96 Suburban. If I rememmber correctly it was a elec. board and not the wiper motor. Appearantly this was a common problem. Sorry but I can't remmember what the board was called. There was a GM bulliten back then.
  4. Chris Miller

    Chris Miller Rockstar 100 Posts

    We had an identical problem on my(then my mother's) '94 Suburban. The motor would turn if I whacked it with a wrench, but would sometimes freeze right in the middle of a cycle. Replaced the motor about six or seven years ago and haven't had another problem.
  5. murdog94

    murdog94 Epic Member 5+ Years 5000 Posts

    OH SOB i forgot about the circut board.. yeah its built into the motor it has a black flat plastic cover on it... Thanks Silver....
  6. GMGUY

    GMGUY Member

    This was called the windshield wiper pulse board. Replaced alot of these.
  7. berg

    berg Member

    Curious if you've got it fixed yet Doug?

    My GMC is doing the same thing, stopping and buzzing, but sporadically and I want to get it fixed before the fall rains start...

    Also curious how hard it is to get to the wiper motor - I haven't had a chance to look yet.

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