2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

n00b question: Window motor or switch?

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Old Feb 25, 2006 | 02:33 PM
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ahabion's Avatar
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From: Atlanta, GA
n00b question: Window motor or switch?

hey guys, i'm sure that this has been addressed already somewhere and i've tried searching in the Search area for "window" "power window" "window stuck" and i didnt find anything useful... in any case, if you can help me out, that would be cool in either linking it here or replying, thx ahead of time.

My little brother rolled down the windows all the way and of course it doesnt want to roll back up. I took out the motor and track (of course detached the window), cleaned it up... sprayed some lub on and plugged the switch and the motor. The "carrier" is in the full down position and of course i can't get it to go up when everything is plugged in.

So i wasnt sure if it would be the motor (which i've read rarely goes bad) or the switch???

i have an 87 TII.
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Old Feb 25, 2006 | 04:08 PM
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From: Czech Republic [www.rx7cz.net]
if you took out window motor, it takes 2 wires and battery to test it out if it works, then u can plug it into stock wiring to confirm switches are working without load

last thing to check u can move window inside 'rails' by your hand, when motor is out
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Old Feb 25, 2006 | 08:05 PM
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i recently had a similar problem, but both up and down i would have to try 3-4 times before the window would go up or down. it turned out to be the switch. get a flat head screw driver and pop the switch out of the door. disconnect the wires and disassemble the switch. inside you will find 4 little brass arms, and the contact points on mine were completely corroded. i sanded them down with 180 grit sand paper until the black was gone, reassembled it pluged it in and it was fine. hope that helps.
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Old Feb 25, 2006 | 08:28 PM
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From: springfield, IL
ive also had similar problems when i first bought my car

so
1st test motor with battery
2nd test connectivity of the swith
3rd replace as needed
4th oil and replace , and oil the crap out of the beads and cables.

any more info i can e-mail to you dont hesitate to ask
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Old Feb 26, 2006 | 12:15 AM
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<---switch problem also. but mine was the plastic arm inside the housing that throws the brass lead to the up or down contact. I cleaned the pieces off with denatured alcohol (with the switch unplugged, of course), and super-glued back into place. worked fine even after I totalled the car a year later.
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Old Feb 26, 2006 | 03:20 AM
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Alex6969's Avatar
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From: Kansas City/Springfield, MO
be thankful you don't have an s5 switch. just give the switches a heathly cleaning, make sure to grind all the carbon off the terminals
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Old Feb 26, 2006 | 11:45 AM
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ahabion's Avatar
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From: Atlanta, GA
hey guys thx for the advice.

i track down the problem to the wire contacts underneath the switch, would seem that the wire contacts are either lose or not quite touching the the switch unit...

i've already sanded down the brass contacts and stuff inside... wasnt until that i started to just move the wires down underneath did it really click to me... would seem like i'm going to have to sawder up all the connections down there... i'm guessing i'll just do both sides since i have at least the driver side apart.

I appreciate you guys help.
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Old Mar 8, 2006 | 01:45 PM
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From: Kansas City
Originally Posted by Alex6969
be thankful you don't have an s5 switch. just give the switches a heathly cleaning, make sure to grind all the carbon off the terminals
any reason why? All of a sudden my N/A s5 driver side window won't roll down. Taking mine apart right now.
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Old Mar 8, 2006 | 02:10 PM
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From: Orange Park FL (near Jax)
The contacts on the S5 switch are tricky to reassemble after cleaning.
It's better to seperate the top & bottom of the switch and clean (with the contacts assembled) with spray contact cleaner.
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Old Mar 11, 2006 | 05:58 PM
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From: Kansas City
Thanks. I got it all cleaned up now..going to install it soon.
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