I have a 1991 Z28 convertible and the passenger side window goes up really slow. Is the window motor going bad?

 

Probably. Replace it now before it dies in the down position as Murphy would have it. The motors can be purchased fairly cheaply on ebay. Installing them is a chore, be careful to put padding on your windows or you WILL scratch your tint.....

 

My windows are both slow, and my passenger side window stops working at the most inconvenient times, requiring you to slam the door.

I have two new window motors, but I've been procrastinating on putting them in as my Haynes manual makes it sound like a major PITA. Anyone have a write up for this?

 

from what my grandpa tells me, my cars windows have been slow since 1986 when he bought it. is it just a cheap motor or just a heavy *** window?

 

Well i know its not normal because it will go up half way and stop. Then you have to wait for 15 seconds and watch it go up 2 inches and so on till it is all the way up.