Anybody know where this goes

can anybody tell me the exact location of where this piece of plastic goes in the window assembly? My window is falling out of the track and I believe its because of this piece missing but I have no idea where it could go.

http://webpages.charter.net/freekie/Grand%20Prix/MVC-513F.JPG

http://webpages.charter.net/freekie/Grand%20Prix/MVC-515F.JPG

It is called a window guide. It goes in the end of the glass toward the back of the car, where it runs in the vertical channel in the door frame and keeps the window in a horizontal position as it goes up and down. There is actally a hole in the glass where that piece snaps into. Where the hole is in the picture, there shoud be a plastic pin that locks into that hole (this is what retains the piece in the window).

OK then.

1) You say "It goes in the end of the glass toward the back of the car, where it runs in the vertical channel in the door frame" .
The only vertical channel I see is in the Front toward the hinge of the door.

2) "there shoud be a plastic pin that locks into that hole"
Plastic pin seems to be broken. Can these Window Guides be purchased? I see no referrence to them in this parts list photo.
http://webpages.charter.net/freekie/Grand%20Prix/gp14.jpg

Try Dorman problem solver parts at NAPA, or Carquest stores.

Motormite's Help! section offers them too. What year is your Grand Prix, and is it a 2 door or 4 door?

Its a 1994 2 door. Power Windows.

I searched all over www.dormanproducts.com/ (http://www.dormanproducts.com/) and found WIndow guides for every car you could think of except for grand prix :frown:

IT's funny, because the diagram for my wife's 97 Trans Sport doesn't show it either, but I know it has them too (I had to replace one). If I look up the side window in the GM computer for your car, it says the glass includes the rear guide, but doesn't list it separately, or show it in the picture.

Thats another thing. You keep saying the rear but yet I pulled this one out of the Front track near the Door Hinge :) .

Hmm, never seen one there. The glass just rides in the felt channel. They are almost always on the rear edge, since it's the longest and heaviest side of the glass.

Your correct its the longest and heavest part BUT. As in my 94 GP there is 1 Horizontal track on the base of the window that the Regulator rides in. When the Window is up the Regulator arm is in the center of the glass. As the regulater arm lowers the window it changes the balance of the glass so that the Front becomes the heavy part and the arm supports the back.

Oh and by the way. After all that searching the net for that guide my local Autozone store had them for $5 . /sigh Now to find out which hole in the glass it goes in.

http://webpages.charter.net/freekie/Grand%20Prix/window.jpg