Throwing parts at it hoping it will fix it can get really expensive, really fast. If you can, simply disable TCC, and see if the problem goes away. On the older trucks, it is just one wire that needs cut.... not sure on the newer ones.

 

Not sure either, if someone could come up with an idea how to disable the TCC on my 2011 I would be very thankful. As far as I know the TCC in my truck is activatet by valves in the valve body an they are activated electronically via the trucks BUS system.

 

Wiring Diagram. Trouble is, I don't see anything referring to TCC.......