« previous next »
Pages: [1]   Go Down

Author Topic: Power Window motor replacement 85 Silverado  (Read 32271 times)

Offline JAG66

  • Newbie
  • Posts: 38
Power Window motor replacement 85 Silverado
« on: December 28, 2006, 11:37:00 PM »
What is the procedure for removing and replacing the power window motors in my 85 Silverado? They are currently not working and the windows are in the up position. I've removed the door panels, and only see an access hole in the inner door metal. Help.  

Logged

Offline joesgarage71

  • Wrench
  • Senior Member
  • ****
  • Posts: 1157
Re: Power Window motor replacement 85 Silverado
« Reply #1 on: December 28, 2006, 10:42:00 PM »
There not working meaning both doors?Are there 12V to the switches?Do you have 12V to the motor when working the switch?
Steve

Logged
78' K-20 355/SM465/twin stick 205 6" on 36's
14 bolt FF/big bearing Dana 44 4.56 gears
92' GMC C-1500 454/4L80E/14 bolt

Offline JAG66

  • Newbie
  • Posts: 38
Re: Power Window motor replacement 85 Silverado
« Reply #2 on: December 29, 2006, 06:40:00 AM »
The motors are bad, the switches are good. The RS motor works very very slowly. How do I remove/replace the motors?

Logged

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 18850
regulator
« Reply #3 on: December 29, 2006, 09:15:00 AM »
you need to remove the regulator with the motor. make sure that you have the regulator secured via a bolt so that when you remove the motor you don't lose any of your digits. It's pretty easy to figure out just remove all of the bolts and minipulate the regulator out of the guides and the glass and don't forget what I said about removing the motor.

Logged
,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline JAG66

  • Newbie
  • Posts: 38
window up
« Reply #4 on: December 29, 2006, 03:24:00 PM »
The windows are in the up (closed) position. How do I get the windows down to remove the glass, regulator, motor, vent window? I assume I need to remove the vent window also. I need detailed directions b/c I can't see how the door internals come out. My Haynes manual is not much help to me.  

Logged

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 18850
Re: window up
« Reply #5 on: December 29, 2006, 07:47:00 PM »
Well are you sure there is B+ and GND at the motor when you command it down? Before you go bezerk make sure it is reversing polarity. You can easily determine this with a test light. You do NOT need to remove the vent window but you will need to unbolt the regulator. There are 4 bolts securing it to the door.

Logged
,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline bigblock73

  • Junior Member
  • ***
  • Posts: 504
  • Yeller
Re: window up
« Reply #6 on: December 30, 2006, 08:09:00 AM »
« Last Edit: September 09, 2008, 10:02:25 AM by Captkaos »
Logged
Jeff

'73 swb 2wd

73-87.com

Offline JAG66

  • Newbie
  • Posts: 38
Re: window up
« Reply #7 on: January 07, 2007, 09:51:00 PM »
bigblock73, Thanks, that helps.

Logged
Pages: [1]   Go Up
« previous next »