Windshield Wiper Intermittent Function

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LJ69

Junior Member
Joined
Feb 3, 2024
Posts
7
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24
Location
NY
First Name
Mark
Truck Year
1986
Truck Model
K20
Engine Size
383 stroker
It sounds to me like the intermittent wiper/ Delay module is bad or missing. It's tucked up under the dash close to the base of the steering colum. If you lay on your back on the driver side floor you should be able to find it with a flashlight. It is rectangular with silver colored, I think aluminum, cooling fins on it. The wire steering colum wire harness and the wiper motor wire harness both plug into it. The harneses can be puged together without the module in between them so its possible that it was removed which woul also reult in just high and low wiper functions. The modules aren't in production anymore but sometimes you can find used ones on ebay.
 
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JBswth

Full Access Member
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Jan 24, 2022
Posts
206
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167
Location
Vallejo, California
First Name
James
Truck Year
1973
Truck Model
C25
Engine Size
292 cubic inches
It sounds to me like the intermittent wiper/ Delay module is bad or missing. It's tucked up under the dash close to the base of the steering colum. If you lay on your back on the driver side floor you should be able to find it with a flashlight. It is rectangular with silver colored, I think aluminum, cooling fins on it. The wire steering colum wire harness and the wiper motor wire harness both plug into it. The harneses can be puged together without the module in between them so its possible that it was removed which woul also reult in just high and low wiper functions. The modules aren't in production anymore but sometimes you can find used ones on ebay.
Now I know where to start so I can fix mine.

J. B.
 

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