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G-20 Gladiator Van Window Motor

Q. Mr. Ciulla, While on a recent trip I separated a tire, and the subsequent vibration (until I could get off the interstate and find the problem and get it fixed) the driver's side window is intermittent and I understand how hard these are to find. I just came back from the library and could find no information on the breakdown of the assembly.

I have taken the panels off and could not locate the motor or the 'drivers'. It is a 1995 Chevy G20 van converted by "Gladiator".

Is there a place on the 'web' where a cut-away or a diagram of this door and the individual parts may be found? I can at least locate, if I had a diagram to help me, the motor and the other working parts to determine if an overload is causing the problem or at least what the voltages are to assist me in identifying the problem and correct it.

In the mean time I did locate two electrical connections and have disconnected them so the window stays up, I still need to fix the source of the problem.

Thank you for your time and information,
Joe

A. A lot af GM window motors will move a couple of inches and stop untill cooled off. This would most likely be a bad motor. The system is very basic and simple. There is a connector on the motor with two wires. One gets 12 volts, the other gets ground. Reversing polarity will reverse directions.

Pulling this plug and putting a test lite across the two terminals should light a test light when the switch is moved in either direction. If you can see the motor connections you could run two jumper wires to the motor to see if it will work in both directions. If the light doesn't light you could have a bad switch or broken wires inside the little boot the runs between the body and the door.

Additional Information provided courtesy of ALLDATA

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