Question about Cars & Trucks
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Posted on Jan 02, 2017
davdancast:The problem you have described is more than likely window regulator failure and/or window motor failure where the gears in the motor have broken. 99% of the time though, it's the regulator. Nearly every automotive manufacturer has gone to this "CHEAP"!!!! design. It consists of an aluminum track which sits vertically when installed. There is a nylon runner which runs in the guide of this track and the window it self is attached by two bolts that a 10mm socket will remove. On the outskirts of the regulator is a series of nylon pulleys which a small twisted metal cable run on and the cable runs into a casing which is affixed to the inner door housing. The window motor is bolted to the regulator utilizing the same size bolts as the regulator. The failure is due to the nylon parts breaking and then the cable comes out of place, consequently the window drops to the bottom of the door.
The regulator from Nissan is rather expensive, but DOOMAN, makes one which is available from many auto parts houses at a considerable savings.
In terms of skill level? In our trade, it is listed at level "B": must have some reasonably decent mechanical aptitude. The pitfalls if you don't know what you are doing? Break the driver's door window switch: $140. = tax if you don't know how to disconnect the harness from the switch. You had better check with salvage yards on the price of door glass and interior door panels because CPR is not part of my job description and you will need it if you price new parts! The actual job isn't that difficult, but you need to take your time, read up on the subject. Go to a Barnes an Noble and pick up a Haynes shop manuel or look through a variety of other shop manuals. You don't have to buy them, just study the instructions and put the book back. If you plan on keeping your car and doing some of the work your self, go in line, you may find some deals on used shop manuals.
If I've helped you out, give the folks at FIXYA some feedback please.. Good luck and if I can be of further assistance, just ask and I'll do my best to help.
It's kind of IRONIC, the first car that I saw this design of window regulator on was in Fiats from the 1960's! Here is an interesting "SNIGLET" The old Rolls Royce cars from the 60's and back used either what was or what appeared to be bicycle chains to offer positive drive to the window lifts!
Posted on Apr 09, 2009
You need to replace the regulator. When cable comes off track it usually binds up in the motor. motor, and cable all come preassembled as one unit, known as the regulator.
Posted on May 21, 2009
SOURCE: 1995 G20 van
the actual power window motor is getting old and probably needs replacement. as they age they get slower and picky about which way they want to go, outside temp also affects the operation also. in warmer weather they tend to work better
Posted on Mar 11, 2010
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