My car was stolen a few weeks ago, and from the condition it's in, they obviously took it for a pretty heavy joyride (1990 Honda Accord Automatic Trans.). It has a fairly new transmission and engine (less than 2 years old), and was running great before they took it; now, however, it has trouble shifting in the morning when it's cold, (will stay in 1st gear, and won't shift out), and once it is warmed up, it will shift, but it revs up between each shift, and grabs very heavily (I know Honda's shift hard but this is far from normal). Guy at the body shop said it was most likely a messed up cylinder inside the transmission from them running it in L1 (low gear). Insurance wont touch it because they say it's not a result of theft, so w/e.My questions is, could it be a cylinder of some sort within the transmission? If so, how much would a repair cost? What else could it be?