Wiper Motor Problem

Hi

I'm new to this forum out of desparation or frustration, not sure.

Car-2000 Pontiac Trans Am
5.7 L 305 hp 6 speed, 74000 miles

Problem: Wipers not going to PARK position when shut off. Replaced motor unit with remanufactured motor. Now when the wipers are shut off, they go to the proper PARK position. NOW when you run the wipers in "intermittent" position every time they stop they are in the up position, right in front of your face. I got another motor unit and tested it and I get the same response.

Is it in the circuit somewhere? Did I get two defective motors? Any ideas?