stroker87

iTrader: (7)

my passenger side window is working but it slow would greasing the track help?

its not over heating or any thing its constant up/down just at about 70% up it gets really slow

wssix99

iTrader: (5)

Grease probably won't fix it. Has the door\window been serviced sine the last time it was working properly? It could be an issue of adjustment.

stroker87

iTrader: (7)

I just picked the car up a few weeks ago so i'm not sure, but i had the panel of to swap the door speakers and the factory plastic is still in place looks like it was never removed

how do they get adjusted? its not tilting or ant thing going up or down?

RPM WS6

iTrader: (3)

It probably just needs a new window motor. They get slow, then slower towards the end, then they sometimes won't go up all the way without a cool down period, and then eventually they just stop working.

wssix99 reminded me a while back about a great product called Sil-Glyde. Good lubricant for the purpose of the regulator (wish I had remembered when I had mine apart), but at this point I think you'll need a new motor to go with it.

wssix99

iTrader: (5)

^^^ I always lube up with the Syl-Glyde when I have the doors open. It's a good practice to keep the regulators happy, but probably not the issue here.


As RPM WS6 pointed out, it could be just a weak motor. The motor works a little harder at the top, so this may be why its changing. Part of the reason it works harder is because of the glass contacting the window stabilizers.

Before changing the motor, I'd check the stabilizers for proper adjustment. If they are pressing too hard on the glass, they could be putting too much stress on a good motor. (This happened to me before I knew what I was doing re: the door adjustment and I messed with the stabilizers when I shouldn't have. Your previous owner may have done the same.)

This site gives a good procedure on how to make sure the door is properly adjusted: http://shbox.com/1/adj_window.html

As you operate the glass, you may also look to see if the window is slowing at the point where the stabilizers are making glass contact.

stroker87

iTrader: (7)

yeah i'm thinking of installing a new motor this weekend, its really annoying the last 30% going up its barely moving

wssix99

iTrader: (5)

If its barely moving, I'd say that its very likely you have a bind at the top end. Those stabilizers would be my first thing to check.

superlazy

Google Autotrix passenger window fix kit

wssix99

iTrader: (5)

Then laugh and forget about it. The kit is snake oil and won't correct a binding problem.

superlazy

Where in the op does it say anything about binding?

wssix99

iTrader: (5)

post # 6 describes a bind or a weak motor that can't get through the tougher part of the movement.

sreve

iTrader: (3)

Swapped out my R\S motor last weekend $50 AC Delco
It's pretty easy takes about the same time to R&R the door panel
as it does to swap the motor. Damn shame though that AC Delco
parts made in China.

wssix99

iTrader: (5)

Why did you do this when you could have gotten the updated design by Dorman?

sreve

iTrader: (3)

Saturday Memorial day weekend with the window stuck down.
This was the only motor availible until Wensday.

RPM WS6

iTrader: (3)

I wonder if he didn't already get a Dorman without knowing it. My thought is based on this....

The old GM window motors used to be made in mexico, not china. So I wonder if GM is just reboxing Dormans and selling them as their own at this point?

GM has been doing this with other things recently as well. For example, if you buy new headlight modules for a '98-'02 Camaro from GM, you will get a unit that is manufactured by Depo in taiwan - the same company that sells replacement headlights via several online retailers. Several years ago, when you ordered them from GM you got a made in USA piece that was identicle to the assembly line originals, and slightly different than the aftermarket Depo versions.

wssix99

iTrader: (5)

My unscientific belief is that all of the GM motors are reman of some sort. Before I switched, all of the "new" ones I had were stuffed in t cases.

There is no way GM is still making a truely new part first installed in a 1960's model. If a supplier was still making them new (like Dorman) then we'd see them also listed under that other brand. (like when Siemens was making them)

I'll bet the reman company for these just moved from Mexico to China.

stroker87

iTrader: (7)

For the guys that said the stabilizers needed to be adjusted you was 100% correct in this case I moved them out a touch and the window is now going up correctly

Thanks for he help!

TriggerHappyZ28

I've installed and burned through several of the "updated" versions by Dorman.

I remember reading on this site before that the real issue with F-body window motors is the wiring harness. The wires are too thin of a gauge and it causes the motors to wear out prematurely. Not sure if anyone has had success with beefing up the wiring. I just replace my motors every few years.

wssix99

iTrader: (5)

Yes, there are posts that assert this. Its important for us to remember that everything we read on the internet is true.


If this statement were correct, GM would have had to recall the cars and you'd measure less than 12V at the motor. The wires used on this circuit are of a comparable size to all other circuits with similar power, so if they were inadequate, we should see other parts failing from the same cause.

Keep in mind that this motor was first installed on cars in the 1960's and it came out of the parts bin for these cars.


Lots of people have had success doing this and by bypassing the harness with a relay and direct battery connection. It makes a bad motor look better. The catch is that its less expensive to purchase a lifetime warranty motor.