David, you describe the problems that I had on my car when I got it 1 1/2 years ago. After trying many things and talking to lots of people, it turned out to only be a bad O2 sensor which was cheap and easy to replace. Jordan Gary > However, when the engine heats up (perhaps 15 miles of highway driving), I can't get the car to move above about 70 MPH / 3K RPM in 5th. At about 67 mph, the car begins to shake a little. The acceleration problem soon affects all the gears, and I soon have no get up and go at all- O to 35 in about 8-9 seconds. If the car is on the highway on a slight incline, I sometimes can't even get the car up to 55 MPH! Trying to get the RPM's up by going from 4th to 5th seems to make the acceleration problem worse. > ------------------------------------------------------------------------ To address comments privately to the moderating team, please address moderator@xxxx