Van shifts fine if moving from zero to a higher speed. No leaks in trany and it runs fine. Transmission shop of course says it needs to be rebuilt. Got my doubts about this and believe it may be the TCM or what ever it is called today! Seen a few different names for it, but I believe it controls when the trany shifts. No other sensors on this 3 speed unit. Thanks, DM
Transmission "studder" at 37 mph & 42 mph if I have to maintain this speed. on 2001 Dodge Caravan
by Vanman1 in Buffalo, NY on October 06, 2010
ANSWER by Johnny Mopar on October 22, 2010
There is no Transmission Control Module (TCM) on the 3 speed (31TH) Transaxle. The "studder" or shudder may be coming from the Torque Converter. There is a Torque Converter Clutch (TCC) operated by a solenoid controlled by the Powertrain Control Module (PCM). This would be an internal issue and would have to be replaced. Depending on the mileage of your vehicle, you may want to consider replacing the transmission with a rebuilt unit. If you have a dealership install a MOPAR remanufactured transaxle, you will have a 3 year warranty on it. It may cost alittle more, but it is worth it. Your choice.