Window goes down but not up?

[jetjock]

http://www.mkiiitech.com/forum/showthread.php?p=7710#post7710

It won't last all that long though because the problem isn't contact oxidation as much as it is erosion.

 

[te72]

So, a curious development in my case... Passenger window is picky about when it wants to roll up. However, if I'm driving (the more bumpy the road the better for this example), the window will pretty much always go up.

Now, if I'm parked, and I push down a little bit on the top edge of the window, it will raise up, no problem. I'm thinking that it is getting hung up on something, and the window motor isn't always able to push the window up past whatever it is hanging up on. Thoughts?

 

[Orion ZyGarian]

Sounds like the regulator. Get ready to break open that door panel!

 

[veedubin]

So, a curious development in my case... Passenger window is picky about when it wants to roll up. However, if I'm driving (the more bumpy the road the better for this example), the window will pretty much always go up.

Now, if I'm parked, and I push down a little bit on the top edge of the window, it will raise up, no problem. I'm thinking that it is getting hung up on something, and the window motor isn't always able to push the window up past whatever it is hanging up on. Thoughts?

Those statements lead me to say your window motor is going out. The electrical contacts (brushes) inside the motor get worn as the years of use go by. When they get jarred or bumped around, they will start to make contact again - thus the window will go up. Next time it fails to go up; gently, yet firmly smack the door panel in the center. Check for window operation after that. If it works, then you should look into a motor. I don't know how many windows I "fixed" like that working at the auto auction

 

[te72]

Sounds like the regulator. Get ready to break open that door panel!

Err... word of advice to you all concerning this. Keep the dynamat type products to a minimum when putting it on a door, and leave the holes covered. Sure, having doors with 5-10lbs of the stuff on there makes for a nice reduction in road noise, but it makes fixing anything inside the door a pain in the ass...

Already tried pulling the door panel a while back (posted above IIRC), I don't think it will be easy to get anything fixed in there. Fortunately, this car is a toy. Once we start working on the widebody (the 87 shell I have), this one will probably be torn down for spare parts, and possibly a front clip BBQ, so I'm not too worried about the little things like this.

Does make me wish these cars had a roll up option though, not much can go wrong with those. One of the few places where I prefer reliability over luxury/power. :nono:

Those statements lead me to say your window motor is going out. The electrical contacts (brushes) inside the motor get worn as the years of use go by. When they get jarred or bumped around, they will start to make contact again - thus the window will go up. Next time it fails to go up; gently, yet firmly smack the door panel in the center. Check for window operation after that. If it works, then you should look into a motor. I don't know how many windows I "fixed" like that working at the auto auction

Appreciate the suggestion sir, but no dice. Like I said above though, no big deal.

 

[Orion ZyGarian]

Can you take pics of what you wrongly did concerning your door dynamat installation? In regards to manual windows, over time, it can be tougher to operate the window as stuff gets in the way and builds up resistance. Eventually, you can strip out the gears, as I believe theyre just plastic. Still, since youre doing it yourself, you can almost always feel as this is about to happen as long--as youre smart about it--and can react accordingly to prolong the life of it

 

[te72]

Eh, I got a bit overzealous with my application of it. Covered all the access holes for the guts of the door. :nono: