marine928

I moved my driver side seat all the back to do some carpet cleaning. the electric seat adjustment was working fine. However, when I finished the seat would not move at all in any direction. No power at all at the switch.

The passenger side works fine so I assume it is not a fuse unless there are separate fuses for each seat. Did a quick search under "electric seat" with no luck.

Can anyone give me some quick advice on the possible culprit.

Thanks

Lon

Wisconsin Joe

Is it still plugged in?
Really. It's possible that moving it all the way back pulled the main harness plug under the seat apart.

And my 85 has separate fuses for each seat (20 left & 21 right). Your 87 may be different.

marine928

Thanks, W.J. Figured it was probably something along those lines. Will check the fuse first, but I think your assessment of the plug is more likely.

Hopefully the wires did not catch on anything and pull apart.

Lon

Mark R.

There are definitely separate individual fuses for each seat on an 87.
I would check those first. If the switch sticks on, it can blow the fuse.

marine928

Thanks Mark, sure enough, blown fuse, probably due to operator error. Thanks for the help.

Lon

soontobered84

The other thing that can happen is that the seat will move far enough back that it will move beyond the threads of the threaded bar under the seat that allows the seat to move. This causes the seat to jam, the motor is still on and the fuse can blow. the seat jam happens when the rubber piece that is supposed to stop the seat from moving that far deteriorates.

Dave928S

What can also happen is that the dried out grease and grit on the threads, gets pushed to the front extremity of the thread, against the white plastic limit disc, when the seat is all the way back.

The build up of grease and grit can be a little more on one side or the other, which forces the runner back on one side more than the other, which jams the seat at its extreme limit of travel.

The back and forward drive rods are most prone to jamming, as they are closest to the floor, and the grease on them and the runners is more likely to become dry and mixed with dirt and dust. Definitely worth taking seats out, cleaning the threaded drive rods and runners, and greasing with fresh lithium grease. The result is that the seats will move much more freely, and won't overload the motors, or jam up.

Pics shows clean track and drive rod, and application of spray lithium grease.

soontobered84

In Dave's second picture, it clearly shows the travel limiter on the threaded rod. It also shows the end of the threads that the runner can be jammed on, in the event of deterioration of the travel limiter. Old grease and general nastiness are always a fight with the location of these threaded rods.
It's a good plan to keep them as clean as possible and well lubricated.