I replaced my power window motor on my drivers side about 2 months ago..lately I noticed sometimes the window would stop going up or down and when I would slam my door hard or punch the door panel it would work again but the other day it stopped working all together in the up position no matter how hard I slam my door or punch the door panel...wtf is going on?? My passenger side power window works fine so I know it's not the switch

 

probably the interrrrrrrrnal therrrrrrrmal switch. do a forum search, tons of info
You should try beating the living sh3t out of your door first though, thats bound to fix it...

 

Maybe you replaced it with a poor quality motor.

 

I replaced the switch but I noticed when I mess with the wires where is plugs into the switch the window will go up and down, so I know it's not the motor...just trying to pinpoint it

 

I have a 95 Z28..... Same problem let me if you fix it. The thing is I have not replace the motor. I need to know if I have to. I'm really thinking it is something in the fuse box.