I have a problem & am having a hard time diagnosing it. When i get this code ( P0743 ), the OD light flashes & check engine light comes on. When i come to a stop, the engine will stall. Once this happens 1 or 2 times, the OD light stops flashing the engine wont stall but the check engine light stays on until i clear the code. Once i clear the code, i can go a week or sometimes only a day until it happens again. The transmission otherwise performs fine. I had my transmission guy change the lock down selenoid & it still happens. If anyone has some insight i would really appreciate it! Please help 'cause i love my truck!

 

Come on guys.... i could really use some input here!!!!

 

Take it back to your tranny guy - there's more to the TC clutch than just the solenoid.