Wipers won't stop

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sbc82

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Location
Wisconsin
First Name
Dustin
Truck Year
1982
Truck Model
K1500
Engine Size
350
Hey guys I have a 1982 k1500 that the wipers won't stop. So I put a new switch and motor in cause the wipers didn't work, now they work great but they don't stop only easy to get them to stop is to un plug the motor. The book i have on the truck doesn't really show how the switch or motor works. I have heard that the switch is ground and the motor should always have power to it? Is that correct so maybe the new switch isn't breaking ground like it should?
 

Jgonick

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West Texas
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Joel
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1985
Truck Model
K10
Engine Size
350
I have heard that the switch is ground and the motor should always have power to it?
correct.


attached is a simple diagram of how it works.
 

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  • wiper_diagram_labeled.jpg
    wiper_diagram_labeled.jpg
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Jgonick

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Engine Size
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so maybe the new switch isn't breaking ground like it should
possibly OR one of the wires (purple or gray) could be grounding somewhere before they get to the switch.

I'm assuming the wipers start as soon as the key is turned.


Would help to give us a little more info. Delay or no delay module?
 
Last edited:

sbc82

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Wisconsin
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Dustin
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1982
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K1500
Engine Size
350
For some reason I can't upload the pics. But the original switch has 2 plugs. They went to a little box that had one plug. The new switch has one plug and i was told I could just bypass the little box and plug it right into the switch. Yes they start running as soon as I turn the key on. I will look at that diagram when I'm by the truck again.
 

Jgonick

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Location
West Texas
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Joel
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1985
Truck Model
K10
Engine Size
350
For some reason I can't upload the pics. But the original switch has 2 plugs. They went to a little box that had one plug. The new switch has one plug and i was told I could just bypass the little box and plug it right into the switch. Yes they start running as soon as I turn the key on. I will look at that diagram when I'm by the truck again.
That sounds correct. Basically you are removing the delay module. "little box".

Attachments show wiring for delay module & no delay module
 

Attachments

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  • 83.png
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Jgonick

Full Access Member
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Posts
366
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Location
West Texas
First Name
Joel
Truck Year
1985
Truck Model
K10
Engine Size
350
OR one of the wires (purple or gray) could be grounding somewhere before they get to the switch.

Does the washer work?

If you unplug the wires from the switch do the wipers still run? If they do not run, it is the connection to the switch or switch itself that is the problem. If they continue to run you probably have a wire that is grounded somewhere.

Attachments are how to diagnose. Notice the terminals are labeled 1-7 on the picture.
 

Attachments

  • wiper_diag.png
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  • Diag.jpg
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Last edited:

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