2007 Yukon Seat issue HELP

[Dasanii19]

2007 GMC YUKON 3/4 ton

Driver side electric seat is not sliding forward or back. I can hear the motor working, but nothing is happening. I checked the rails and no obstructions found in the rails. I’ve searched YouTube and forums but cannot find a fix. Is there a forward/back gear that can be replaced? I’ve seen aftermarket gears for up/down but that won’t fix my problem. Can anyone comment on what may be broken? Do I need to take the whole seat out to fix? Or can I repair with the seat in its place?

 

[Joseph Garcia]

I can't tell you for sure what the cause of your issue is, as this has not happened to me before, and I have not looked under the seat at the mechanicals.

When the motor is turning, do you hear any other mechanical sounds, like metal grinding on metal, or metal sliding on metal?

If you hear the motor turning away, with no other sounds, like metal moving against metal, and your seat is not moving, then my initial guess is that a gear has become separated from a shaft. Perhaps, there is a spring pin holding the gear in place on the shaft, and that has broke. This is simply a guess on my part.

Hopefully, other folks on the Forum, who have removed these seats, and know more about the mechanicals underneath the seat, will chime in with their suggestions and perspectives.

 

[OR VietVet]

If you look under the seat and see NOTHING obstructing it, then the next step is the seat removal, IMO, and get a good look at it all. Gear bad or pin came out or the "muffler bearing is shot?" Who knows till you remove and get a look see. Or another member here will chime in with a better option.

 

[avalonandl]

You need to remove the seat and if the gears are broken get a replacement from a salvage yard. If it has memory than you need to find one that is set up for that. The entire seat track assembly should be replaced.