Wiper trouble

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oldpromod

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Alabama
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Donald
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1985
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C-10
Engine Size
305
I need help driving down the road and at random times my wipers cycle one time. Also when I press the switch to raise or lower the pass. side window from the drivers side only the wipers cycle one time.
 

Doppleganger

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Sounds like you have a collection of grounding and wiring issues. The ground on the wiper motor is probably the easiest place to start.
 

gmbellew

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might be a mouse has chewed some wires and things are electrically connected that shouldn't be...
 

oldpromod

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Alabama
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Donald
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1985
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C-10
Engine Size
305
Sounds like you have a collection of grounding and wiring issues. The ground on the wiper motor is probably the easiest place to start.
I have the wiper housing grounded to the battery and that didn’t help any
 

oldpromod

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Alabama
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Donald
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1985
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C-10
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305
might be a mouse has chewed some wires and things are electrically connected that shouldn't be...
No I have checked all the wiring and nothing chewed on.
 

Jgonick

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Wipers should have constant current from white wire (WHT-93) from fuse box. They work when one of the other wires complete the ground at the wiper switch. So a wire is grounding out somewhere. -also- The switch or wiper itself could be bad & occasionally grounding out.

PNK-94 ground -washer
PPL-92 ground -fast
GRAY-91 ground-slow
BLK/LT BLU-97 grounds GRAY-91 (slow) until park switch opens at end of cycle,

BLK-150 ground
 
Last edited:

oldpromod

Junior Member
Joined
Feb 18, 2021
Posts
5
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Location
Alabama
First Name
Donald
Truck Year
1985
Truck Model
C-10
Engine Size
305
I traced all the wires associated with the wipers and still the same problem. By chance I had another truck with intermittent wipers and changed out the module and everything is perfect now.
 

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