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  1. #1

    Question Wipers have a mind of their own

    i have my 93 suburban and my wipers work when they want and for how long they want, damn union workers, lol, but on a serious note, anyone know where the relay box is thats after the fuze box, but before the wiper motor, cause thats the only thing i can think is maybe wrong with it, but if you have any ideas, im up for suggestions on what you think might be wrong to.

    1993 Suburban
    5.7 liter and all stock

  2. #2


    There was a issue with the switch on seveal GM products back in the late 80s and early 90s. I had the same problem several years ago on another vehicle.
    She aint much but shes mine.

  3. #3

    Default circuit board

    I had the same problem with my '93 Sub. There's a replaceable control (circuit board?) on the front side of the wiper motor. A contact wears out on the factory one. Can't remember what I paid for it but think i got it online. Just google "intermittant wiper repair" or something like that and you should find them listed.Takes about ten minutes to replace and now mine work like new. Good luck.

    1993 GMC Suburban C1500 (my cream puff)
    2003 S10 Blazer 4x4 auto (the wife's wheels)

  4. #4

    Join Date
    Feb 2008
    Red Wing, Minnesota, United States


    i just replaced the entire wiper motor, got the part at oreillys for 53 and then returned the old one for 13 core exchange
    99 K1500 Suburban LT "THE BEAST"
    Hypertech III, K&N, true dual

  5. #5
    Jr. Mechanic dfhollums's Avatar
    Join Date
    Sep 2009
    Elmore, Elmore Co., AL

    Default same problem

    My wife informed me the other day that the wipers on her '99 Suburban are doing the same thing. I reckon a replacement wiper motor is in order also.

  6. #6

    Join Date
    Feb 2008
    Red Wing, Minnesota, United States


    the body style from 88-99 for those trucks and SUVs are pretty common for having the wiper problem. It can be fixed by soldering a wire insde that breaks loose but i think its just easier to get the new motor

  7. #7


    OK, but its cheaper and a lot easier to just replace the circuit board! No soldering needed.
    Last edited by nitrozamboni; 11-23-2009 at 09:27 PM.

  8. #8


    i just googled it and its only around 36 bucks for the replacement board heres the link that i found it at...

  9. #9


    I had the same problem on my 1994 Suburban, it got to be a running gag within the family, I had a cousin try talking to the truck to get it to stop!!! On occasion it would scare the pants off the person in the passenger seat it was good for a laugh!!

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