I have the 4 cyl 2.3 Vtec and the tranny is acting up. It seems to over compensate when down shifting as I brake for a stoplight or sign. Also, when going up a hill, it downshifts and then takes its time shifting back into overdrive until the car plains out or sometimes sooner.

Keep in mind that this doesnt happen all the time now but seems to be getting worse slowly. I havent really heard any noises but I may not be listening for the correct things.

Is this internal transmission troubles or could it be the computer that tells the tranny when to shift(transmission control module TCM???). Anyone with this experience in a '99 with 82k miles???

How hard would it be to change out the TCM if that is what the diagnosis is???

Thanks for any help!

Chris

EDIT:

Also, how much would a auto - manual conversion cost approx and would it be worth it if the worst case evolves???