NashuLee

Good morning, I am having the same issue. Do you mind me asking, what the symptoms of your bad TCM were? Its been a nightmare for me. I am the shop manager at a Water Well company in Ft. Worth Texas and this rig has been down for going on 4 months now. We were having start up and fueling issues along with shifting issues. we ended up replacing the turbo along with some injectors and other parts, but still had the random shifting. We then had the shop working on it send it to a certified Alison shop, they pointed back to the diesel shop. They then sent out both the ECU and TCU and they came back as "fine" so here I sit with a useless truck. Looking for a TCM to throw at it.