C4 wiper module... again
Thread Starter
6th Gear
Joined: Nov 2025
Posts: 6
Likes: 1
From: Melksham, Wilts
C4 wiper module... again
Well, back to the old problem. 1987 C4 wiper module, Ive got intermittent wipe, slow and fast wipe. The problem is no washers.
the wires to the washer pump works, The circuit board components look ok. Ive soldered a few dry joints but still no washers.
Voltage readings seem ok to manual.
Ive tried to buy a used one on ebay but being in the UK, the sellers will not ship or ebay wont let me complete. plus I get import duties on top.
My question is, my circuit board is 22038284 Rev 8.
Googling suggests other GM truck wiper motors but they are different shaped boards SO has anyone tried an alternative GM/AC Delco board to solve?
the wires to the washer pump works, The circuit board components look ok. Ive soldered a few dry joints but still no washers.
Voltage readings seem ok to manual.
Ive tried to buy a used one on ebay but being in the UK, the sellers will not ship or ebay wont let me complete. plus I get import duties on top.
My question is, my circuit board is 22038284 Rev 8.
Googling suggests other GM truck wiper motors but they are different shaped boards SO has anyone tried an alternative GM/AC Delco board to solve?
