I am working on a replacement motor that will come with a new gear/shaft on it. I have one of my setups in the car right now and have the parts for another one ordered. I hope to make a video of the repair in a couple weeks when the parts show up. Still uses plastic gears, but these are larger, more durable gears and the swap is fairly straight forward with just a few modifications.
Here is the link to my video:http://www.youtube.com/watch?v=wQLVvUf-9...
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Email [email protected] and you can buy replacement brass gears for those plastic gears. I have four of them in my 2002 Park avenue
GM put plastic gears on the seat motors, and the teeth strip off. I have same problem with my 02 Park Ave. On another site I found someone making replacement brass gears to put on existing motors that still work. I have not contacted them yet so don't know if they will work. GM only sells whole track units for over $800 for each side
You probably won't be able to. Just slide the seat all the way back, remove the front bolts, then move the seat all the way forward and remove the back bolts, you can then remove the seat completely to perform your repair.
SOURCE: power seat, driver side
If only one seat is not working the fuse/relay is ok or both would not work, most likely cause based on experience is the control switch, then the power seat motor.
SOURCE: 1985 buick riviera power seat wont move back
You have a damaged drive gear in the seat, the parts are no longer sold for this ol of a model so your best bet is to try and locate a used one.
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