my 91 300e has 252k+ mi, and is experiencing some transmission problems. i have not yet had it checked out, and am driving it as limited as possible until i can do so. i was wondering if anyone had similar problems and could help me out with possible suggestions.

when the car is in park, it the rpms rev very high, up to 2,000rpms. when you put the car into gear (drive, reverse etc) it goes to a normal rpm. often times, when the car is put into gear, it is accompanied by an audible clunk.

when you are driving, the rpms will rev very high, up to 4,000-5,000 rpms. most of the time, it will then drop down to a normal rpm and shift to the next gear. but sometimes, you will have to hit the gas hard and then let off kind of forcing it to shift. this usually happens going in to like 2nd or 3rd.

sometimes when you are driving, and the car will be getting ready to shift it will rev high for a second, then like slowdown (or something im not sure) and then shift.

when driving long distance at high speed (only happened once, im afraid to take it far or too fast ) the car will not shift into higher gears, and then it overheats. what was happening was, whatever speed i was going, those were the rpms (65mph=6500rpms, 45mph=4500rpms) i really took it easy, and didnt go any faster than 45 or 50, as i had to get home and was 45 mins away.

so, if anyone has any suggestions, i would be very grateful!