I have a 04 1500 4.7 MPI, my trans mission is locking in 3rd after it warms up, personly I think it is a faulty solenoid in the valve block, but the dealership are telling me to replace the TCM, but there dose not seem to be any in the USA they are on back order and my even be discontinued! Help! Any sugestions on where to locate one or get mine repaired? Or even if that is the problem!
Many thanks!