Power Windows
Safety Car
Joined: Nov 2004
Posts: 4,359
Likes: 57
From: Mundelein Illinois
Grab a test light and check for power. Power windows use a circuit breaker. I've seen switches go bad. Check for power and ground at switches
Fuse box is located on left of steering column on firewall
Fuse box is located on left of steering column on firewall
Thread Starter
Instructor
Joined: Mar 2008
Posts: 235
Likes: 1
From: Waynesburg PA
Can I just take the side skirts off the center console or does the entire top have to come off to replace the switches. Divers switch seem "looser" than passingers. Can you still get these swithches at Auto Zone or do you need to order from a covette supplier?
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
My 78 'vette has had problems with the screw that holds the window relay in place backing out. That screw acts as a ground. If it backs out, you'll lose your capability to raise and lower 'em.
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
BTW -
If both are going out, it's most likely the relay or a fuse/breaker. Assuming this, if they're going out and coming back, then it's the relay.
If just ONE is going out, then check out that switch.
If both are going out, it's most likely the relay or a fuse/breaker. Assuming this, if they're going out and coming back, then it's the relay.
If just ONE is going out, then check out that switch.
Safety Car
Joined: Nov 2004
Posts: 4,359
Likes: 57
From: Mundelein Illinois
To replace switches the top needs to come off. I would disconnect battery then side shirts. a few side screws and the top will lift enought to remove two phillips screws to remove switch.
Try this: pushing to the up position and then to the down position and do this very fast for about 15 seconds. If the windows start to work or are inermittent replace the switch because it's going bad.
Does one window work and one doesn't? Usually drivers goes first.
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Safety Car
Joined: Jun 2004
Posts: 4,354
Likes: 214
From: Beecher Illinois
Similar problem on my white79 was solved simply by removing the carpeted side panels, removing the switches and scraping the contact posts on the switches. They were slightly corroded. I could jiggle the connector a tiny bit and they would work. Seemed like corrosion on just one switch would affect both.
On another Vette, I had just the driver switch act up. Would go down easily but going up was hit or miss. Took the original switch apart and cleaned the copper leaves inside, Worked like new.
On another Vette, I had just the driver switch act up. Would go down easily but going up was hit or miss. Took the original switch apart and cleaned the copper leaves inside, Worked like new.
Last edited by KapsSA; Mar 18, 2009 at 11:19 PM.