repair to power seats on 2001 Lincoln Continental

When I shut off the car the drivers seat makes a rat-a tat noise.What is the poroblem and how much should it cost to have it fixed and also how much to replace the lumbar bag replaced.

3 answers 2 comments
when I shut off the car the drivers seat makes a rat a tat noise, and wont move.
The tank pressure sensor is for the emissions system, and has no effect on the fuel gauge. It's likely that the tank level sensor is failing, which is fairly common. Check our common problems page: http://repairpal.com/chevrolet-blazer-2001/common_problems
What is the answer? I could not find one.
There is no answer posted
You need to replace the seat motor. the part costs about $230.00 from the dealer.