We have a 1999 ford f-150. Engine runs great but... When it is on cruise control and I go down a hill it feels like it is trying to slow down. It is quite noticable. Also when you take your foot off the gas it jerks instead of being a smooth transition.

We have had it hooked up to a couple of computers and asked around but no one seems to have an answer. We don't have the best ford mechanics close by so if I could go in with some ideas maybe I could get somewhere.

Thanks
Jake40