Power seat swap from 1990 Olds Park Ave to 91 Buick LeSabre - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 02-22-2006, 07:08 PM   #1
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Default Power seat swap from 1990 Olds Park Ave to 91 Buick LeSabre

OK, the LeSabre power seats have the controls on the seat, the Olds Park Ave have the controls on the door panel.

Is it possible to move the seat-mounted controls from the junk Le Sabre seat to the usable Park Ave seat?

Has anyone ever done it before? The problem with the LeSabre seat is that the frame holding up the seat back broke = so there'* now a lawn chair in the back seat propping up the seat back!

If not, I'll go back to the JY and try again.

Thanks!
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Old 02-23-2006, 12:39 AM   #2
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It might be possible, but you would have to rewire it. you'd need to know which wires on the seats you have now do what and then match them up with the wires on the switch. Then you have to find a location to mount them on the new seats.

Might be easier to find a le sabre in the junkyard.
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Old 02-23-2006, 10:58 AM   #3
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A thought after seeing Jimmyfloyd work magic on some AL7 wiring.

Looking at both seats... if you have the same number of motors..and they control the same types of things..they'll run off the same voltage. It might be a matter of swapping over the control box that is located on the bottom of the seats usually.
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Old 02-23-2006, 01:15 PM   #4
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Default Seat swapped!

Here'* what I found out... the seat swap is in (almost).

The seat pan frame is identical on both seats. The LeSabre has an extra bracket mounted to the pan frame that holds the power seat controls. The seat controls and wiring connectors mate correctly with the Olds seat, and the sheet metal screws holding the bracket on the LeSabre seat pan frame went in nicely to the Olds seat pan frame holes, which are drilled the same as the LeSabre.

So, I cut the fabric on the seat cover, mounted the bracket to the seat pan frame, fished the wires between the frame and the seat pad, connected everything back up and, voila! The seat now goes up when you push the control down! (fore and aft are OK) So, I guess I should see if the individual connections on the big connector can be swapped around until everything works right. Since Fore and Aft works OK, it wasn't just a matter of getting the control upside-down in the bracket.

FYI: The LeSabre had a small molded 'void' in the seat pan padding for the wires to go through that the Olds seat didn't have... It doesn't seem to matter that it is not there.

I hope this helps someone else! BTW: It was easier than finding another seat.

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Old 02-23-2006, 02:09 PM   #5
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Glad to hear...sounds like you are almost there. I would look at the connector to the motor for the reversed feature. Then simply remove the pins and reverse them. After all...isn't that what the control box is doing.
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Old 03-02-2006, 06:17 PM   #6
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Default Seat wiring harness solution

The solution was to take the harness off the old seat that went between the motors and the on-seat switch cluster. Somehow, even though the connector is the same for the seat-mounted switch cluster on the LeSabre and the pigtail coming out of the floor on the Park Avenue, the pinouts are different! So, now everything works fine!

Oh, one exception...

I took the car to the dealership and found out that the trans is going bad, they don't know why the engine stalls, rear ball joints need to be done, the exhaust system is patched together about to fall apart, engine mounts need to be replaced, windshield'* cracked, power steering cooler leaks... too much to fix that I don't have time or inclination to do and is more than the car is worth anyway All that work for naught?

Well, I had fun doing it, anyway

And, maybe my experience, preserved here, will serve to help someone else.

Thanks!
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