Window problem
Thread Starter
Heel & Toe
Joined: Jan 2015
Posts: 24
Likes: 0
From: Caldwell
Window problem
My 84 drivers side window rolls down 3/4 of the way and then stops. I can roll it up and down but it never goes all the way down, stops in exactly the same place. Is there a limit switch or stop switch inside the motor? I replaced the switch but just have not yet gone in the door. Baffled by its stopping in exactly the same place.
Race Director
Joined: Aug 2000
Posts: 11,470
Likes: 762
off the top of my head, there are no limit "switches" on the 84-86 power window regulators. I never paid attention to the regulator details, but I'm thinking it just some sort of mechanical stops. your issue sounds like something with the nylon ribbon - most likely you have a break somewhere or something's binding. roll out the tool box, and start taking the door apart for this repair. replacement ribbons are about $20, and a fairly easy fix. if you want to get serious, you can upgrade to the later C4 regulators (87-up). used sets usually run somewhere around $150/pair. not a hard job - just did it on my 85.
Advanced
Joined: Aug 2014
Posts: 94
Likes: 1
From: Biloxi Mississippi
off the top of my head, there are no limit "switches" on the 84-86 power window regulators. I never paid attention to the regulator details, but I'm thinking it just some sort of mechanical stops. your issue sounds like something with the nylon ribbon - most likely you have a break somewhere or something's binding. roll out the tool box, and start taking the door apart for this repair. replacement ribbons are about $20, and a fairly easy fix. if you want to get serious, you can upgrade to the later C4 regulators (87-up). used sets usually run somewhere around $150/pair. not a hard job - just did it on my 85.
Burning Brakes
Joined: Nov 2014
Posts: 936
Likes: 51
From: Post Falls ID
They are mechanical stops as I recall. If I go into my doors again (OK, when I go into them again), I'll replace the window regulator system with the later one. Mine are really slow up and down in my 86. Like cigr said, if you're in there, you may as well fix it to make it better, not more of the same.
Burning Brakes
Joined: Feb 2013
Posts: 1,173
Likes: 152
From: norway
Melting Slicks
Joined: Jan 2008
Posts: 2,054
Likes: 120
From: AZ
May be the plastic ribbon gear is broken or an obstruction stopping the movement.
My replacements lasted longer but after 30 years, switched to the newer, faster mechanism, found used but in excellent condition. There was a hole or two that needed to be drilled for the mount; instructions available online.
Whichever way you go, clean the guides and re-lube, as the old lube gets more like glue after years of dirt and moisture.
Whichever way you go, clean the guides and re-lube, as the old lube gets more like glue after years of dirt and moisture.
