C4 window problems
Racer
Joined: Jun 2006
Posts: 384
Likes: 62
From: Chicago Illinois
I just serviced both inner and outer doors on my 89 convertible. From your movies it appears that either the window mounting hardware to the regulator is missing or loose or the regulator rollers are simply shot or are coming out of their tracks because your window glass is pivoting forward and backward when it should be locked in place as the window goes up and down.. Look down into the door from the top of the window opening and you should be able to see where it is hanging up. There is also a rubber bumper that goes on the bottom of the inner door that the window regulator bumps against that must be installed. Most of the time the rubber piece gets knocked loose from the moutning hole and is rolling around inside the inner door bottom. Check for that piece as well.
On mine, someone had misrouted the power mirror harness on the driver door and it was catching on the front bottom of the window. I secured it back where it belonged and my window functioned properly again.
Post your results after you do some more inspection of the inner door workings. Also a great time to lube up the lock and door latch assemblies.
Good luck.
Ted
On mine, someone had misrouted the power mirror harness on the driver door and it was catching on the front bottom of the window. I secured it back where it belonged and my window functioned properly again.
Post your results after you do some more inspection of the inner door workings. Also a great time to lube up the lock and door latch assemblies.
Good luck.
Ted
Team Owner
Joined: May 2000
Posts: 53,801
Likes: 5,632
From: Plantation Florida USAF(Retired) 1966-1990
U.S. Air Force
St. Jude Donor '05 thru '26
NCM Sinkhole Donor
Just a suggestion, but why don't you take your car to Auto Glass Company, they do make house calls, and have them look, it's there business to repair windows and when I owned C4, I was told there adjustment, there experts is what they do best.
Advanced
Joined: Feb 2017
Posts: 86
Likes: 4
From: San Antonio, Fl Florida
Window regulator
