Both driver and passenger power windows still work, but they are extremely slow to go up and down?

1984 CHEVROLET TRUCK
175,000 MILES • 7.4L • V8 • 2WD • AUTOMATIC
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TWEBB101
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  • 183 POSTS
I haven't done any diagnostics yet, but am wondering if there is a "known" culprit for this issue, or if it's random? I've done some research, and some people are saying regulator and/or motor replacement, some are saying it's power and to put a new window harness in. Any thoughts?
Dec 14, 2023 at 11:48 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Hi,

Both are possibilities. You can check if there is a power-related issue with a multimeter or a voltmeter.

At the motor, you should be getting 12v. If that is the case, before replacing anything, try cleaning and lubricating all moving parts to make sure there just isn't too much resistance.

Let me know what you find or if I can help in any way.

Take care,

Joe
Dec 15, 2023 at 8:03 AM
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TWEBB101
  • MEMBER
  • 183 POSTS
I took the door panel off but couldn't see a good way to get to the motor. I cleaned up and lubricated the moving parts and that helped a lot. I think I will run it for a while before I decide to start taking window components out. Thanks!
Dec 27, 2023 at 3:12 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Hi,

Thank you for the update. I'm glad to know it is working better for you. If anything changes or if I can help in any way, let me know.

Take good care of yourself, have a great New Year, and feel free to come back anytime in the future.

Joe
Dec 27, 2023 at 1:19 PM
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