Quote Originally Posted by Ryan Giles View Post
I don’t feel like the tuner matters really since I returned the tune to stock OEM before working on it then simply reinstalling my tune after the work is done.

I don’t believe the problem is in the tuner at all but rather what happened with the actuator.

I’m not an expert but I would think you could tell me what might have happened with the actuator causing my problems.

Sorry just stressed about the whole thing.

I didn’t know this was a MM3 only forum.
We're definitely a multi platform forum. But your situation likely exceeds the know how of anyone who's not well versed in FCA tech.

I know my way around these trucks and vehicles in general but I'm stumped on your situation. You've got a multitude of things going on and I don't know where to begin.

The failing to downshift could be related to APPS, poor TCM mapping, solenoid damage, etc.

The boost and EB issues sound like a bad actuator, not sure what else to suggest there.

I may have missed it but do you have any codes?