I have a 2000 Crown Vic (Police Interceptor) and the tranny slips. Sometimes it will not shift into OD when i know it should, and then finally it will, not redlining before it does, but you can just tell when it should should, and its going beyond that. Also under full throttle, it will stay in gear and not shift up sometimes, then when it shifts into gear (99% smooth, 1% of the time it shifts really hard). My friend has a 96' ford ranger and is having similar problems. I have read on a few forums that a tune-up would help. Does anybody have any troubleshooting tips or things i can try?
Thanks!