Power Window Problems
Thread Starter
Joined: Apr 2002
Posts: 5,231
Likes: 20
From: Houston TX
Power Window Problems I replaced my boys power window motors in his 99 T/A last nite. The driver side works fine but the passenger side will not go down. The window does go up but not down. The window was down a little and when we tried it the window went up with no probs but it will not roll down. When I press up on either the driver side or passenger switch you can hear the motor click but when you press down it does nothing.
We press the switch down and pushed on the glass and it went down maybe halfway after about 5 mins of "tapping/pushing" on it. Once we pressed the switch up it rolled up instantly without any hesitation. I don't think the window is off track or that the glass is rubbing against something but it seems like its not getting the signal to go down. I checked all fuses and looked at the harness for pinched or cut wires and saw nothing wrong. I even tried another set of switches that I had laying around. Could it be the BCM where the wires tie in to under the dash?
We press the switch down and pushed on the glass and it went down maybe halfway after about 5 mins of "tapping/pushing" on it. Once we pressed the switch up it rolled up instantly without any hesitation. I don't think the window is off track or that the glass is rubbing against something but it seems like its not getting the signal to go down. I checked all fuses and looked at the harness for pinched or cut wires and saw nothing wrong. I even tried another set of switches that I had laying around. Could it be the BCM where the wires tie in to under the dash?
The same thing happened to me. The re-manufactured replacement motor I purchased was defective.
The problems you are having sound like the auto shut-off mechanism in the motor is bad. It measures when the window is all the way down/up and then shuts off the motor. When the switch goes bad, the normal force/movement of the mechanism is enough to trip the switch.
AutoZone and some other retailers now sell totally new re-designed motors (which have different-looking motor casings) that are advertised to last longer and resolve the problems with the auto shut-off switch. I don't have any experience with this new design, although I've had a hell of a time with the OEM motors. (None lasted more than 30K miles for me.)
The problems you are having sound like the auto shut-off mechanism in the motor is bad. It measures when the window is all the way down/up and then shuts off the motor. When the switch goes bad, the normal force/movement of the mechanism is enough to trip the switch.
AutoZone and some other retailers now sell totally new re-designed motors (which have different-looking motor casings) that are advertised to last longer and resolve the problems with the auto shut-off switch. I don't have any experience with this new design, although I've had a hell of a time with the OEM motors. (None lasted more than 30K miles for me.)
Thread Starter
Joined: Apr 2002
Posts: 5,231
Likes: 20
From: Houston TX
This autoshut off thing is for the driver side or passenger side or both? His driver side works fine with the new motor just not the passenger after we replaced that one also. I guess I could have him contact the place where he bought it from and ask for another to see what it does.
My OE motor lasted 3 years, I return my AdvancedAuto motors every 2 years... they work great but last only 2 years max.... they have a lifetime warranty so at least the replacements are free. I would stay away from these $15 motors on Ebay, these AutoZone or AdvancedAuto motors are new, not remanufactured.
Hopefully you bought your motors locally so you can at least return the one that doesn't work without paying shipping charges.
Hopefully you bought your motors locally so you can at least return the one that doesn't work without paying shipping charges.
The auto shut-off switch is an internal component of every motor. Its main purpose is to shut off the motor when the window is all the way open or closed. (So the motor doesn't burn out.) When the switch goes bad, it thinks the window is all the way open or closed - giving you unpredictable results.
You will probably have better luck with an exchanged motor. Out of 4 replacement motors I've purchased in the past, two turned out to be defective from the store. (They were re-manufactured.)
You will probably have better luck with an exchanged motor. Out of 4 replacement motors I've purchased in the past, two turned out to be defective from the store. (They were re-manufactured.)
