Dogue,

You bought yours used. How many miles? How did the previous owner treat it and what problems did they have with it? The parts you had replaced "related" to the rpm problem, Did you replace them , or the dealer. Do you know if all those parts were actually bad, or did the dealer misdiagnose or replace parts using trial and error to try to fix it? Did you have out-of-pocket expenses for the repairs, or did the warranty cover it all?