Mine quite working entirely. I remembered reading a post recently about a 1/4 rubber hose in the door and replacing it. I could not get mine off to replace it, but I used an aerosol combo of pen lube, silicone and white lithium grease. One end of the hose is open. Lift it up and spray these or something like them into the open end of the hose, holding the hose as high as you can, then run the window up and down. There is something in that hose that needs lube once in while. Thats all I did and the window works like new now.:sunshine:
First thing I fixed in two years on this jeep that did not attack my wallet with a vengence, just kidding, but really it was a parts free fix!:yelclap:
Mine is an 87 Wagooneer.