Hi all, I'll be working to repair my power seat later today (I'm going to bed soon). Currently, the seat can raise up and down, and it tilts forward and backward. What it doesn't do is slide forward or backward. It's stuck in the rearmost position which made removing the seat a test of my patience like nothing else. Nonetheless, it is out now. I have a new transmission housing that I plan to put all the guts into since the current one is not broken, but old and brittle.

My question is that since the motor works, what things do I need to look at to restore functionality to the track sliding function? Are there any problematic gears in the housing, is the track just rust prone, something else? Thanks!

 

The common failure mode on these power seats is the plastic coupler between the motor and the gearbox. The D-shaped holes that connect to the motor and gearbox shafts strip out. This is so common that new ones are still readily available.