Question about 2000 Buick Park Avenue
2000 Buick Park ave with power seats - someone borrowed it and now both the front seats are stuck in the fully down position. Will move forward and back, seat back tilts fine, lumbar fine - just the seat bottom wont go up/down/tilt. The motors make noise, but no movement.
The electric adjustment motor has a drive-gear that engages a gear on the shaft of the adjustment screw (90 degree engagement). The gear on the adjustment shaft looses a tooth. Adjustment motor whines, drive gear on adjustment motor spins, no action though because of missing tooth. A 12mm 1/4" drive socket on a wiggler (universal) on the end of a 6" extension can engage the not on the end of the exposed large adjustment shaft and, as the shaft is lightly loaded and the electrical switch engaged, one can get the shaft to spin almost one revolution at a time until the seat is high enough. It is hard to reach the nut necessary (inside the dull-grey clevis that the shaft threads into) and I had to take off the seat pad by removing the 4@ 13mm nuts (and 3 @10mm nuts holding the center section with the driver's cushion) to more-or-less easily access the situation. Dealership wanted well over $1000. to fix it. Three out of my 4 up and down adjustment motors are running, but don't adjust. PS, on my 2001 Park Avenue on each seat there is one adjustment motor for the front edge up and down, one adjustment motor for the rear edge up and down, one adjustment motor for the seat fore and aft, and one adjustment motor for the sear back tilt. Lots of complication, not so much on durability. We do not swap out drivers and adjust the seats excessively. Weak design on the one internal gear. Manually adjust it, unplug the electric to the motor, Drive happy again.
Posted on Aug 13, 2010
I found a site that told about a new motor from a place called American Science & Surplus it is a very easy swap . I have put 5 motors in my two park avenues. The part is called move. So nice to have working seats now.
Posted on Nov 05, 2014
I know that this is an old problem. I am working on uploading a possible solution to this problem, and hope to share the video when I have it all done. There is also a guy on the forums that sells brass gears to fix this problem. You could look for his info on google. Hope to have more info up soon.
Posted on Apr 28, 2013
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Posted on Jan 02, 2017
SOURCE: I have a 2002 Buick
believe it of not the seats are cable driven there is a series of motors under the seat that have cables attached to them that goes to a series of transmissions, best guess is that the cables are broken that is why you hear the motors and nothing happens, remove the seat and turn it over and you will see the cables.....GOOD LUCK
Posted on Jan 31, 2011
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