Need help P0768

[laplanteT41]

I have a 2005 lly duramax. It has 165k on it. I just did a fluid/ filter change. The truck is stuck in limp mode now. Throwing code P0768. Truck shifted great before changing the fluid/filters.


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[2004LB7]

Shift D solenoid not working properly. Did you do the transmission fluid?

 

[laplanteT41]

I did. Just a simple drain/refill and filter change spin on and internal


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[2004LB7]

May need another scanner that can read Allison specific codes