'82 c30 Wipers/Washers don't work

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xtremek

Full Access Member
Joined
Dec 29, 2019
Posts
54
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89
Location
St Johns, Mi
First Name
Kirk
Truck Year
1982
Truck Model
c30
Engine Size
350
Fixing up a beaten '82 c30 cab and chassis. The wiper switch literally fell apart when I pulled it out. Replaced it and still no luck. The wiper motor had some hack universal pump butchered into place, so I replaced it. Still no luck. 12v on three wires at the wiper, so I'm guessing the switch grounds it. Tried to download the PDF, but I'm having issues (firewall). Which wire at the switch provides the ground?
 

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