Question on a 77 wiper.
Thread Starter
Melting Slicks
Joined: Aug 2010
Posts: 2,487
Likes: 10
From: Palm Beach Florida
St. Jude Donor '12
Question on a 77 wiper.
My wipers don't work. They use to, then they started the "when I feel like it, Ill work" routine. They do not make the 77 wiper switches on the column. So I was thinking of placing a switch under the dash, so I can turn them on if need be. But now Im wondering did the 77's have a control to adjust the speed, or just a two way switch for regular and fast wiper motion? Any help would be appreciated. Also the three wires that go into the plug, in the engine compartment, I'm assuming one is positive or first speed, another is second speed? and third a ground? Sorry haven't looked at the wiring diagrams yet. They are in the garage buried. Thanks.
Le Mans Master
Joined: Dec 2007
Posts: 6,422
Likes: 591
From: McHenry Illinois
The yellow wire at the wiper motor has power with key on, the other terminals get grounded by the wiper switch for low or high speed. There should also be a ground wire attached to the motor case. On the 77 I had, I was able to open up the switch and clean the terminals.
Last edited by '75; Dec 30, 2014 at 10:43 PM.
Thread Starter
Melting Slicks
Joined: Aug 2010
Posts: 2,487
Likes: 10
From: Palm Beach Florida
St. Jude Donor '12
The switch in the steering column?
Thread Starter
Melting Slicks
Joined: Aug 2010
Posts: 2,487
Likes: 10
From: Palm Beach Florida
St. Jude Donor '12
