Originally posted by lgy:
Finally get the Alex OBD-II scanner. After taking a road test, I found that the TCC is lock-up between 40-50MPH, but it becomes unlock beyond 50MPH. I thought this may cause the P0741 code. But, I really couldn't understand why this happened. How come the TCC becoms unlock beyond 50MPH?





To try an answer this first part... I can only think of a few reasons off the top of my head right now.

1) ECM detects that the TCC, inside the TC, is slipping and disengages the clutch to keep it from overheating and possibly locking up solid.

2) Weak solenoid on the solenoid block.

3) Leaking Torque Convertor Clutch circuit in the valve body

If I were to take a guess between the two, I would have to go with #1 which could be caused by #3. This could be resolved by replaceing the TC. That is unless you also have a leak in the TCC circuit of the valve body, which is very common so you might as well replace the TC and Valve body at the sametime. There have been people here that have done it themselves for around $500.

Last edited by unisys12; 04/22/04 03:00 AM.
Phillip Jackson `98 Mystique LS 262K+ and counting... ATX rebuilt @ 151K "This storm has broken me, my only friend!" RIP Dime