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

TWEBB101

MEMBER
1984 CHEVROLET TRUCK
7.4L
V8
2WD
AUTOMATIC
175,000 MILES

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?

3 Replies

JACOBANDNICKOLAS

MECHANIC
108,200 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

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Friday, December 15th, 2023 AT 4:03 PM

TWEBB101

MEMBER
157 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!

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Wednesday, December 27th, 2023 AT 11:12 AM

JACOBANDNICKOLAS

MECHANIC
108,200 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

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Wednesday, December 27th, 2023 AT 9:19 PM