Electrical problem
1987 Buick Electra 6 cyl Front Wheel Drive Automatic 195000 miles

I have the 6 way adjustable seat option on my park avenue and I am having a problem with the "tilt" function. Forward and backward operation works smooth as silk but when you try to use the tilt in the "upward tilt motion", the side of the seat near the driver door tilts properly but when you reach about 1/2 way to maximum tilt, the left side of the seat bench (drivers side) continues to go up as the right side gets stuck and starts making a terrible clicking noise as if something is off track. Intuition is telling me it is a mechanical issue rather than an issue with the motor but I'm far from a professional. I'm considering taking the seat out (4 screws I think) and doing a visual inspection. Any ideas?