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How can remove the rear seat on a 1990 mercury sable
yes
Apply pressure (usually kneeling is the best and easiest) on the rear of the seat and pull the seat towards the front of the car.
The rear seat is not designed to be removed. You can remove the center seat and slide the rear seat forward.
The rear seat is not intended to be removed. You can remove the center seat and slide the rear on forward into it's place.
The rear seat isn't designed to be removed. If you have a center bench seat you can remove that by unclipping it, then slide the rear seat forward.
The center seat is removable, after which the rear seat can be slid forward.
The rear seat does not come out. The middle seat is removable, after which you can slide the rear one up.
It is printed on the computer which is normally under the kick panel or mounted against the rear seat in the trunk.
NONO
inside fuel tank,you can remove rear seat to access it
The rear seat (3 person slider) is not designed to be removed by the end-user. However, this site has a good procedure from the shop manual for removing the rear bench seat. http://home.earthlink.net/~vqfaq/