andrewd_cohen

I have a 2000 Tahoe which I have owned from new. When it was 2 weeks old the drivers side window stopped working so the dealer replaced the regulator. It did it again after another 3 weeks, new regulator.

About a month ago the passenger side window stopped working, so I booked it into the dealership. On the morning I took it in, the window started working again, and the service writer insisted it was just the switch (it wasn't as I had checked the voltage to the motor) so they changed it out.

Now that the car is just out of warranty, the window has stopped working again. I have measured the voltage going to the motor and all is good, the polarity changes too. So I am going to take the trim off and investigate.

Question - is there a known weakness in GM window regulators? I find it hard to believe that a motor could die mechanically in such a short space of time without slowing down/stalling. Is there maybe a circuit breaker or something in the motor that is stopping it working?

I would love someones opinion on this as it has to be something simple.

Thanks very much

Andrew

pressurecooker1

I have found that in many cases it was a stuck brush in the regulator motor and nothing more. I took mine off ( mark location as it will rotate backwards if installed 180 degrees out) cleaned up brush tracks and unit in general and probelm went away permanently. I now have a rear window that is doing the same thing and when it warms up I will do th esame thing again.