Power seat binding on front/back function

MLRWALDEN

MEMBER
2007 CHEVROLET TAHOE
125,000 MILES

Drivers seat binds on front/back function. Dropped seat back. Right side worm gear is not moving the right slide. Can rotate by hand without turning motor. Stripped gear I would think. I do not see how to remove/replace this part. Dealer wants $600.00 to replace entire power unit. Can this part be replaced?

4 Replies

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

What happens is the armature breaks causing the problem you have described to can replace the unit yourself and save some money. Here is the diagrams to show you how to do the repair.

Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.

Cheers, Ken

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Thursday, August 16th, 2018 AT 7:51 PM

DANNY L

MECHANIC
5,648 POSTS

Hello, I am Danny.

I have attached a blown up picture for you to look at. Can you give me an idea as to which motor you're referring to? Hope this helps and get back to me when you can. Thanks for using 2CarPros.
Danny-

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Thursday, August 16th, 2018 AT 7:52 PM

MLRWALDEN

MEMBER
3 POSTS

The very front motor drives the front/back seat function. A shaft runs to the left and Ishtar worm gears to turn the gear. Motor runs but the right side does not spin. Assumption is that the gears connecting the motor to the worm gear is broken. I cannot see how it can be removed or replaced.

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Friday, August 17th, 2018 AT 1:38 PM

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

The seat motor unit is built as a module so you will need to use some imagination and probable some machine shop skills to take it update to fix it but when you get it part upload images so I can help walk you through I can do machine work as well.

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Saturday, August 18th, 2018 AT 1:57 PM