Thanks so much! I just recently had the transmission out to replace the rear main seal. I did also replace the front & rear seals on the tranny, plus do a filter change. I noticed that the transmission protector switch is leaking slightly around the switch.

When I put everything back together and properly filled the transmission and did a test drive, I noticed for the first time that there didn't seem to be a full lockup occurring with the car in higher gears (4th, 5th). When I apply throttle on the freeway, I do see a climb in RPM's that's not linear with speed increase. It's not a slip - I know what that feels like - just a 150-200rpm climb like one would get with a non-lockup converter.

I was afraid I'd done something to upset the transmission. I tried pulling codes from the transmission control module, but it returns #1 (no codes).

Regards