how can I lower the electric rear window of my 89 full size Blazer when the automatic system fails?

Question

The key switch at the tailgate has not worked since I have owned the Blazer. The interior switch has finally stopped working. The motor for the window bumps but the glass does not move. I have tried to remove the top around the glass, but there seems to be something besides the removable screws that hold the top to the tailgate.

Answer 1

It sounds like the spindle that the motor is attached to is stripped. Like a socket that fits over an Allen Wrench. Or, a stripped gear.

There is usually an access panel on the inside of the door and this will give you access to the motor and some of the guts. If you can get this far with it you might be able to diagnose it by taking the electric motor out and finding out why it can't crank the window down. If it's too buggered up then you might have to take it to a body shop or and have them replace some internal part(s).

No easy fix like installing a hand crank since these are not designed to take an alternate part.

Good Luck!