I've got a Turbo 300 CD Coupe that I've just purchased about 2 weeks ago. It's got about 270,000 miles on it and was running great until a couple of days ago. Now it seems to hesitate a bit (stutter) at speeds arounds 60 mph and if I'm going up any sort of hill it slows down pretty dramatically, like to 35 or 40. Also am noticing a bit more roughness in the idle. Anybody have any ideas of what it might be or how to diagnos this?
Any help would be appreciated.
Thanks