04-28-2006, 11:53:19 AM
The power window motor in my drivers door is bad. Has anyone repaired one of these? Or does it have to be replaced? Could something just be jammed, gummed up, or rusted? How have people removed the motor? My Haynes manual says to drill three access holes to get at the mounting bolts for removal of the motor-is this necessary. Why cant you just remove the pop rivets? I truly appreciate any and all answers!
04-30-2006, 11:48:17 AM
The regulator is mounted to the door with rivets, and the motor is mounted to the regulator with bolts.
05-01-2006, 11:40:46 AM
I did manage to get the power window motor out over the weekend. And I did it WITHOUT drilling the holes as suggested in the Haynes manual. I just felt where the bolts were on the motor and got my stubby wrench in there and got the bolts out. Probably in less time than drillling the holes. The biggest issue with the Haynes was that the template is wrong. It may be correct for manual crank but my rivets didnt line up with the positions on the template. The mounting holes for the motor were in the correct position but the rest of the reference points were all off. I have taken out the window glass and the guides. I have a halfway notion of taking out the regulator too. Then re mount the motor on the regulator, after cleaning off all of that 30 year old grease.
After taking the motor out, I found that it still works. When in the door, I got sparks when I ran a wire from the battery and touched the terminals, but no movement. I suspect that the dried up grease and dirt gummed up the guides and kept the window from moving. After I cleaned up the motor-took it apart, cleaned out the carbon, regreased the end and the worm gear, it ran fine in both directions. I dont think that I had a weak motor either - I tried to grip the motor gear and couldn't hold it, which was more force than what would be needed to lift the window.
This info might be helpful to others and shows that the Haynes manual isnt always correct. And it might suggest that the motors may be OK.
05-02-2006, 01:13:42 AM
I went through all this, and it took a long time to figure out... it could be dried out grease, dirty window track's, switches that get dirty and go bad, or even old / original wiring. Once wiring get's too old, it produces a higher than average amp draw, get's hot, and eventually quit's working ( find's a weak spot, and burn's out )... kind of like old spark plug wires. Chech the whole system... electricity has kind of an "odd" way of wearing out part's you would never expect
05-02-2006, 01:14:37 AM
Oh yea... the same motor's are installed in GM truck's, and a few other car's , as well .
05-02-2006, 11:56:39 AM
Thanks for the replies. Just as a follow-up: before I removed the power window motor, I ran a wire from the battery (+) and touched the two posts of the motor connection. One is for up, one is for down. I got a spark at both terminals, but no movement in the window. I guess the point is, even if power got to the motor, the window still wouldnt move.
05-05-2006, 06:56:18 AM
Mine quit working after I put new door bushings in. Ran a separate ground wire to the body & it was good again.
05-05-2006, 09:16:40 AM
i'll look in the transams in the junk yards around here i know of one with power windows i took the glass out of it