Our 2001 S Jaguar seat pops the current limiter when you try to move it fore or aft. Tilt and up/down work until that current limiter pops and will work again in 5 minutes. The dealer wants $1700 for new tracks and the motor. I just bought a used seat on E-Bay and will switch the parts. Why don't they sell the motor itself? Are there any tricks I need to know. I am an aircraft mechanic.