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Old 08-09-2010, 11:48 PM
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window will not go up 1995 chev astro van

Ok i cant understand the problem they have changed the motor and switch and nothing. Now i took a crack at it and this is what i have discovered when i tested the switch. When i press the up both wire that are going to the motor light up and the motor does not move when i press the down only one wire lights up and the motor goes down. Now the question i have is we wound both wires have current when i press up. I tested the switch out side with a Continuity tester and tested OK. I am lost Oh i tested the driver side and it tested ok but i did have a hard time getting current on the passenger side wires i had to wiggle the wire to get a current i dont know if it was my tester did not puncher the wire coating.

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Old 08-10-2010, 05:39 AM
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Sounds like a bad switch. If you've got both motor wires hot going up, that means you've got no ground going up,
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Old 08-10-2010, 06:51 AM
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Which window is it exactly that your working on? I have found that the majority of the time, the switch is bad rather than the motor.
Don't want to be a smart a** but are your sure the lock out button is not switched on?
A friend of mine who is a fix it yourself type of guy recently replaced both motors on the pass. and drivers doors only to find the drivers control switch panel was bad.
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Old 08-10-2010, 10:11 AM
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The passanger side is new and it does not have a window lock. I told my brother in law to go to the junk yard and get a set of driver and passanger.I did not k ow that the switch sent out the the ground I alway thought it was grounded when it's bolted to the door.
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Old 08-14-2010, 11:40 PM
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The switch is reversing the polarity of the voltage feed to the specific motor. you might check the wiring harness that runs from the drivers door edge to to kick panel area.open the door and pop the rubber grommet loose and inspect the wiring. after years of opening and closing the drivers door, the wires can actually break in half if that happens to be one of the window motor in the inside of the wrap. I have seen it many times at dealerships over the years. Causes anything from intermittants to plain old open circuit. worth a look ....
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