Question about 2003 Pontiac Montana
Sounds like your regulator is not aligned correctly and not riveted
in all the needed places. It could also be that your door metal has a
crack in it, and when the window raises to a certain level, the metal in
the door can't support it and it gets out of alignment.
I have done this type of work at a GM dealership and replacing and repairing these window is pretty tricky, so go back and really retrace all your steps. Did you follow the instructions in the service manual, when you did this, because there are instructions for how to adjust and align the window and the regulator.
Keep us updated about your solutions.
Posted on Nov 11, 2010
OK......there are 2 reasons why this occurs...one is the electric motor that with age increases resistance and becomes an extra load on top of the window itself, but this is more seen in cars 10 years or older......in your case, I would be leaning towards the rubber moulding that the glass slides in...it is called the bailey channel rubber...and abnormal wear (as caused by the previous failure), would have made this worse.....try changing the rubber moulding and see how that works...
Posted on Nov 09, 2010
Your problem is the window regulator.Sometimes you can get it separate and sometimes you need to get the motor and the regulator assembly.The regulator is what keeps it going up straight.What you need to do with the door panel off and while working the window up and down.Watch to see if the cables on the regulator are staying in place or moving properly.You should be able to see the problem by working it up and down.Let me know if you have any more questions.Good luck.
Posted on Nov 08, 2010
It is just somewhat normal aging with this system.The problem isn't the track or mechanism(I think).I am assuming by mechanism you are talking about the framing in the bottom half of the door which basically holds the window?It is the clip which attaches to the window near the top and towards the rear part of the car.It slides in a track there and just loosens after time because the wear in the track and the constant use causes it to either just loosen up or is affected by the transition of seasons if you are in a cold climate winter.It always used to happen to my Buick.I can't exactly remember if it became unattached or slowly went out of place.It definitely was a pain in the neck so I know exactly what you mean about grabbing the glass.Same exact thing.I tried a new clip and it didn't last long,however,I never thought about the track in the window section of the door.Is that the track you are talking about?Or perhaps the glass is loose in the bottom half of the door unless that is the mechanism you are talking about?The clip is cheap and easy to find but I can't guarantee it fixing it.Don't say yes or no yet unless you want to because it cuts off our communication I think,but I would like you to clarify a little about if I interpreted it correctly.It's harder to describe on a computer than on a phone/in person. Greg
Posted on Nov 08, 2010
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Posted on Jan 02, 2017
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