68 Windsield wiper motor question
Thread Starter
Drifting
Joined: Oct 2007
Posts: 1,317
Likes: 22
From: Marina CA
68 Windsield wiper motor question
My 68 wiper system is giving me fits to get it to work. Original motor was kaput so a rebuilt was purchased and installed. I bench tested the replacement motor prior to installing it per the thread on the forum and all functions are normal.
Once installed in the car it will not work unless I supply 12 volts to the brown wire that energizes the wiper solenoid on the back of the tach.
I realize that basically all the dash switch does is switch grounds for low and high speed wipe and washer functions, but what makes the brown wire go hot when the system is turned on?
The wiper motor has 3 leads a red, black and white which plug into a polarized plug in the wire loom with red to red, black to black and white to brown. There is also a plug for the washers, a 3 wire flat plug and a seperate single black ground wire that attaches to the motor body.
What am I missing here? The brown wire is not going hot when the system is turned on.
Sorry for the long post but if any of you 68 owners have been down this road, I would sure appreciate your input to solve this one.
Once installed in the car it will not work unless I supply 12 volts to the brown wire that energizes the wiper solenoid on the back of the tach.
I realize that basically all the dash switch does is switch grounds for low and high speed wipe and washer functions, but what makes the brown wire go hot when the system is turned on?
The wiper motor has 3 leads a red, black and white which plug into a polarized plug in the wire loom with red to red, black to black and white to brown. There is also a plug for the washers, a 3 wire flat plug and a seperate single black ground wire that attaches to the motor body.
What am I missing here? The brown wire is not going hot when the system is turned on.
Sorry for the long post but if any of you 68 owners have been down this road, I would sure appreciate your input to solve this one.
Last edited by 1Fordman; Feb 23, 2008 at 02:24 PM.
Melting Slicks
Joined: Dec 1999
Posts: 2,157
Likes: 0
From: Pensacola FLA
Is the under dash service switched turned to the right and properly grounded? Here's a website for 68 wiper motor trouble shooting
http://www.corvettefaq.com/c3/1968Wiper.doc
http://www.corvettefaq.com/c3/68wiperts.xls
Bryan
http://www.corvettefaq.com/c3/1968Wiper.doc
http://www.corvettefaq.com/c3/68wiperts.xls
Bryan
