Driver side window controls don't work on 93 GMC Sierra

[93Sierra]

I just recently purchased the truck i am driving which is a 93 GMC Sierra , and the driver side window doesn't roll down ( electric ) but the passenger side does , and the lock unlock button doesn't work on either side .

 

[Burning oil]

I cannot remember the specifics, but do know both pass and driver side window switches must be good. For example: If the pass side is bad you cannot opperate the window from the driver side ethier. Alot of auto parts store have new factory style switch in the HELP section.
Same deal on the lock switches.
If its not that then its probably the motor/s

 

[DEERE3594]

make sure you have power at the switches. try grabbing the wire loom by the hinges, ive had the wireds break from age and stop everything from working in the older trucks countless times