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I know this has come up tons of times in this forum, but the back window on my friends 92 bronco is being a pain. It goes all the way up if I use my palm to keep the drivers side up and level, but will only go down 2 inches or so before the motor just stops. It doesnt want to stay level at all and I have no idea what to do. Removed the access panel, but theres almost no room back there to get a good look. We want to be able to get the top of and go cruising in it, but spending alot of money for a new tailgate is a little out of the question. Where do I go from here?
If the window wont stay level then you may need to check to make sure everything is tight but sounds like something is off track. You don't need a whole tailgate.
Thats what I was thinking, but is there an easy way to work on it? The back of the bronco is a pretty tight area and I cant hardly see anything when Im trying to look at it.
It can be difficult to see what you are dealing with and if you have never had the tailgate guts apart knowing what and where to look for problems can be trying. The attached diagram shows what the window mechanism pieces look like and how they are arranged. Dropping the tailgate flat can certainly help as has been suggested. I know it says 1980-89 but the mechanism didn't change significantly over the years.
The problem I had with my Bronco was it sounded like the motor was 'slipping' so I took it apart and found that (from above picture 234A24) those two pieces could spin around each other. So I filled them up with JB Weld and presto, perfect working window.
The problem I had with my Bronco was it sounded like the motor was 'slipping' so I took it apart and found that (from above picture 234A24) those two pieces could spin around each other. So I filled them up with JB Weld and presto, perfect working window.
There is a nylon gear in there, with three nylon "thrust bushings" in it. The bushings break up when they get old and cause the motor to "slip". You can get the bushings off of the Help! rack in any good parts store.
I just replaced the bushings in the passenger side window motor, and got that one working again, and replaced a dead motor in the tailgate with a jy find, and rebuilt the gear set. Now that one works.
When I replaced the tailgate beltline weatherstrip (at the bottom of the window), I spent most of my time getting out and putting back in the window stop, that's part 387392-S in the drawing that grey posted. The window stop is rubber, that is what the window assembly runs into and stalls the motor when you put the window down. The stop needs to come out when replacing the beltline weatherstrip, because you need to carefully lower the window down lower than it's supposed to go, to be able to access the grips on the weatherstrip. Otherwise, the top of the glass would block you.
Getting the rubber stop back into place was hard. It has like an arrow-head shape to it, that needs to poked through a slot in the steel panel way down there. Very hard to get a grip on it, and get enough force the right way to get it to go through and latch in.
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