You will have to disconnect wiring, seat heaters, etc. Move the seat full rear, remove front bolts. Full front remove rear bolts. Carefully lift out of car. It is heavy, so careful is the buzz word. Upend it and put it on a bench. You will be able to see the problem w/o too much trouble.

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Jeff Lawrence
1989 300e
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.