Two problems related to manual transmission have been reported for the 1999 Acura TL. The most recently reported issues are listed below.
When I drive the shift is usually is really slow and it also makes a clunk sound then sometimes I put it on d4 buit it some how goes to reverse and I have to go back to park and try to put it back on drive as I'm driving on the highway it does jerk around but as I'm slowing down to exit it starts to "break" and jerk around I was able to make it home and ever since not move the car.
Faulty transmission was installed at the factory , it had to be replaced immdediatly at 54 miles.