i just got this 91 z28 and the windows dont go down. the fuse was beat and i changed that but cant locate the relay, can anyone show me with a pic or a good description which one it is as there's like 3+ big relays i've found so far. 2 behind brake master cylinder and i see one near the battery. also everything else power works, the locks and hatch pop are powered so i dont think its a wiring issue, plus they worked when i first looked at the car but maybe from overcharging the batter it killed the relay n fuse....? any help appreciated.

 

They don't have relays. If the motors are not functioning, and the switches are good, and the wiring is good, then it's the window motor itself. They don't use relays because they have built in circuit protectors inside the motors - if there's too much draw (ie motor not working), ten the motor itself shuts down and resets in a few minutes. There's a great article here about swapping out motors without removing the regulators from the door - I've done it this way on several cars and it works great.

https://www.thirdgen.org/forums/body...tall-easy.html

 

so overcharging the battery could of blown the fuse and motors?