QuestionI have 1993 buick century 4 door. The front windows will not work but the back does. i looked at main switch it looks fine the rear windows on the main switch will work but not the back. Is there a relay some where. This model does not have auto down.
AnswerThis is a common problem with power windows.
The switches get corroded from humidity, and/or the servos in the doors do also, and/or the mechanism gets dirty etc.
There is a relay/fuse in your fuse box under the hood. However, it usually is not the problem, as it operates all 4 windows. When some work and one doesn't, it usually is a "local" condition.
Check your fuse/relay first, then open the panel on your front door(remove screws, lift it up) for loose wires, anything obvious, then do the same to the rear one that is inoperative. If that turns up nothing, then you'll have to remove the entire door panel, and access the servo and mechanism inside.
