buick park ave seats
 

have a 2000 parkave. drivers seat will not move forward or backwards. motor works makes a clunk noise when you move the switch . it does go up and down.
looked under seat don't see anything that would stop it. ideas ???????

I just checked the FSM re forward & back movement of the drivers seat. There are a lot of electrical tests, but not a lot of information about the motor itself, I will have to keep digging..3 books.
If the motor is going clunk, that may indicate something is broken,
Take a good bright flashlight and try to move the seat forward or back and see if you hear/see the source the problem.
The seat may have to come out for a better inspection.

have looked with light nothing looks out of place or broken. all screws and bolt i can see look ok

The Pk Ave Seats have some issues apparently regarding the motors and plastic drive gears. Are motor/gears -parts even available?
Possibly finding a replacement Junk yard seat may be best option.
One online video titled Buick seat repair or searching Park Avenue seat repair, shows what it looks like with seat out & what may be involved to replace a motor.

ok will check it out

hi guys, I have an 03 Park Avenue that I took the seats out of this past winter and rebuilt them. There's three motors in the seat the very front one near the front edge of the seat move the seat forward and backward. Yeah they have plastic gears in the gears strip you can't get the gears or the motors anymore. I searched so many junk yards I couldn't count and every single one I found the motors were stripped! However I did find a motor online that was almost identical to mine I measured it Etc and I bought it and it works perfect I did have to do some modifications to the frame to make it fit. But I think that was the other Motors, not the one that moves the seat forward and backward. anyway I'll send you some links or pictures when I get a chance. By the way this motor I found and bought was only $20 and it was a Kia Motor! Seats work perfect now.

correction, the motor was on Amazon from Daewoo. to check yours it has 2 pins, one is ground and the other is power. hook it up one way and the seat goes forward, switch the wires and it goes backwards. 12v naturally. be careful , the pins are very close together.
here is a link to the motor on Amazon.
hope it works, I'm not to good at this stuff.

Sorry, have to correct myself again! I just looked at some pics and found that the 3 motors (one moves the front of the seat up and down, one moves the rear of the seat up and down, and the 3rd is for reclining the back) are the ones that have plastic gears in them.
But the one that moves the seat forward and backwards is a different kind of motor. It has a steel cable coming out of both ends that goes to each side of the seat, this cable has square ends, kinda like old speedo cables, and they fit into gears that drive the worm gears to move the seat. these are all steel.
You might a problem with the seat binding. each side has a square tube that fits into another and it slides back and forth in that tube. Hope that makes sense, hard to describe. think of two square pipes or tubes, one slightly smaller than the other and it fits inside it and slides back and forth, it one side of the seat gets out of alignment it could bind.
I it is your motor, there are thousands of these in the junkyards.
hope this helps,