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1991 Chevrolet 1500 Pickup Question: Wipers won't work except when u push the wash mode. It has a new motor on it

 

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Michael 37, Potwin, KS, December 20, 2013, 05:51
 Rookie

91 chevy truck had the old style wiper motor but new style plug all I had was high on the old one so I replaced it with the newer style an now they won't work unless u hold over to wash and they will work until I let off and then it runs through it cycle

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  • Answer #1

    Greg's Orange Auto (12205 Answers) , Orange, CA - (714) 361-9386
    globalhelper December 20, 2013, 06:11
     Master

    try ck'ing you intermitant wiper module that is attached to your wiper motor.it has 4 screws and its approx 55.00. you may want to call the dealer they had a tech bulletin about it and they may replace it for free if not already done b4

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    Michael 37, December 20, 2013, 06:29
     Rookie

    They try to move when u put them on high but that's about it u can hear the bord or the motor trying but nothing I hit the wiper motor with my hand and just keep hitting and it made one cycle but that's it I bought the wiper motor new with the bord in it do u think that bord is bad

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    globalhelper, December 20, 2013, 06:30
     Master

    is the assm rebuilt or brand new

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    Michael 37, December 20, 2013, 06:38
     Rookie

    Brand new

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  • Answer #2

    pushrod December 20, 2013, 06:36
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     Master

    THIS IS ANOTHER COMMON PROBLEM, THE WIPER MOTOR GROUND STRAP THAT IS UNDER ONE OF THE MOUNTING BOLTS IS EITHER BROKEN OR HAS LOST CONNECTION. TRY GROUNDING THE WIPER MOTOR TO SEE IF THAT WILL MAKE THEM WORK.

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    Michael 37, December 20, 2013, 06:40
     Rookie

    Did not c one when I replaced the motor. Can I make a ground stap out of a good pice of wire and c if that will work

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    globalhelper, December 20, 2013, 06:42
     Master

    yes you can. is the assm a delco or a cheaper one.where did you buy it?

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    Michael 37, December 20, 2013, 06:46
     Rookie

    I bought it a a place called northport auto supply its not a Delco but it was new. I made a wire up and attached it to the wiper motor and still the same I am so lost right now

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    pushrod, December 20, 2013, 06:47
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     Master

    Yep, done it many times, but it is a little tricky! Ground a metal part of the wiper mtr with a wire, jumper cable, to the battery neg term with wipers & key on to confirm that is the problem. The motor is mounted with rubber gromets, Be sure you ground a metal part of the wiper motor!!!! Just running a wire under a mounting bolt WILL NOT WORK!! If grounding dors not work, replace the motor as suggested.

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    Michael 37, December 20, 2013, 06:53
     Rookie

    I attached it were the curcit bord bolts up and still nothing tring to get the fixed we have rain coming this way today and lasting for days

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    pushrod, December 20, 2013, 06:56
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     Master

    The motor has got to be grounded that is all i can tell you. With a long wire, Touch motor metal to battery neg for test!!

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    Michael 37, December 20, 2013, 07:07
     Rookie

    I understand I agree with u just tried to c if it was the switch I plugged the old one back up holding it in my hand and all I have is high like before on this one so I plugged up the new one and still the same now I am lost I have worked on cars as longe as I can rember and this one has me

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    pushrod, December 20, 2013, 07:11
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     Master

    Replace the circuit board or assembly as suggested. That is all i know to do.

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    Michael 37, December 20, 2013, 07:14
     Rookie

    Thanks man I going to try to get the place I bought it to do something I have only had it for 3 days and has not worked sence I put it on

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