window motor going out???

[aggiedave98]

My '89 suburban w/ electric windows has the driver's side window that I think is going out. Here are the symptoms:

window starts to go down (already slower than the other windows), then gets slower and slower eventually coming to a stop about half way down. At that point, I can't make it go up or down. I have to wait 5-10 minutes then do it.

It seems like it's overheating and waiting just lets it cool down first.

Any help??

Thanks.

[balps]

Hi,

I recently bought a 1990 Suburban, high miles and somewhat worn around the edges. Among other issues, this Suburban's windows showed the same/similar symptoms. Here's what I've found:

The shut down and wait thing, I think, is indeed the overheat protection kicking in...one of my windows did the same thing.

To fix/improve your situation, you might try the following...you'll need a long-ish arm and some bizarre, home brew tools. I found the grease had dried out--not only was there little or no lubrication of the in-door mechanism, but the grease was jamming up the works. On one window, one of the nylon wheels had come off...I was able to reinstall it.

I have thin, long arms and was able to reach inside the doors and wipe down the scissor mechanism's tracks with a solvent-soaked rag...fairly well, anyway. I then applied synthetic grease to the wheel shafts, the tracks, the scissor joint shafts, and the motor gears. I also cleaned the tracks that guide the windows up and down---they were caked with crud. Once the tracks were clean, I spyed a liberal dose of silicone lubricant and let the guide tracks soak it up. Note these tracks extend down inside the door and must be treated all the way down.

I then ran the windows up and down, noting any binding and fighting it off with spot cleaning and lube. I was able to get the front windows running quite fast with the rear windows a bit more slowly.

This is not a permanent fix, but continues to work after 1 year in Jan 05.

BTW, while you're in there, try lubing the lower hinge point on the corner vent windows in front...the lubes are similarly "gone" and a little spray synthetic grease works wonders.

good luck

Balps

[aggiedave98]

thanks for the reply!!! that's a big help. I was starting to think I wouldn't get a reply...