Ok Fellas, this place is always a wealth of information.

I have a buddy with a 2001 2500 HD Crewcab 4x4 with 8.1 l and allison tranny.



The SES is on, the codes are as follows:



PCM] P0463 - Fuel Level Sensor Circuit High Voltage (Old) (History) (Immature)
[PCM] P0700 - Transmission Control System Malfunction (Pending) (Old) (History) (Current) (Immature)
[TCM] P1779 - Engine Torque Delivered to TCM Signal (SES) (Old) (History) (Current) (Immature)



The first one I understand, the others we need more info on.



The truck has 90,000 miles. The only thing done recently was a water pump change out two weeks ago. Other than that this truck has been flawless.





Any help?

 

Truck probably went into traction control/abuse mode at some point and thats why the two codes are stored.