Olds Silhouette Passenger's Power Window Won't Go Up or Down

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Old 12-13-11, 07:22 PM
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Olds Silhouette Passenger's Power Window Won't Go Up or Down

I have a 2000 Oldsmobile Silhouette and the passenger's side power window won't go up or down. It started to hesitate going up or down, then would go down but not up and now won't do either. Same situation whether using driver's or passengers switch. Driver's side window works fine. Tried replacing driver's switch and same result. Checked all fuses and they are fine. Attempted to test for continuity at the passenger's window motor but not sure if voltmeter hooked up / tested correctly as no Ohms registered when both red and black probes plugged into wiring harness, key on and switch activated. Wiring harness looks fine in passengers door rubber seal. ANY ADVICE??? Especially on proper way to determine if power is getting from driver's or passengers switch to the point where wiring harness meets power window motor??? THANKS
 
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Old 12-13-11, 08:05 PM
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Most likely a bad regulator motor. They are easy to replace on those vehicles and don't require the entire regulator to be taken out for example. It is possible that the regulator is seizing up also, but with those vans a faulty motor is very possible. You can always pull of the trim panel and poly barrier and tap the motor during operation to see if that helps as this would confirm the motor issue. There are some good videos available by googling if you need help in understanding how to pull off the trim and R&R the motor as a DIY. Very easy and would talk you about 30 minutes.
 
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Old 12-14-11, 05:15 PM
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another clue

tested power at the harness where it plugs into power window motor and very little to no power is coming out of harness! the fuses and circuit breakers near glovebox are fine.
 
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Old 12-14-11, 08:50 PM
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Not sure about your van which is basically a Venture mechanically, but often the door harness after going through the lower A piller is connected to part of the main body harness either behind the kickpad, or under the carpet just inside the door opening in front of the sill. It would be worth having a look at the connectors for corrosion, especially if they are exposed to potential water under the carpet, and or whether they are tightly locked. These connectors are usually fairly large as they support both windows and locks. Another possible thing to check are any grounds for the same corrosion reason. Also what does very little power mean in volts?
 
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Old 12-14-11, 09:07 PM
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Just to add to what I have just mentioned, the passenger door harness connection maybe under the passenger seat in your van rather than behind the kick pad. This further brings the possibility of moisture exposure over the years ending with corrosion . I suggest that you take the connector apart and check carefully for corrosion as a next step especially if you are seeing power levels around only 6 volts or less at the motor. If you see corrosion in any of the pins you can improve things by spraying them with an electrical contact cleaner which is available even at the big box stores.
 
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Old 12-17-11, 05:44 PM
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Run a wire from the batt to the window motor.
 
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