devildogadam
Active Member
1 week ago I attempted to install a shift enhancer from bully dog. Part number ending in 0001. The installation was straight forward, so I thought. Got it all back together and the truck will not move. Won't go into reverse or drive. Throws a p0875 and sometimes a shift ranger inhibited fault. I have since taken it apart and re-verified I followed the directions to a T. And replace the manifold pressure switch and solenoid g. No luck so far. I am using a new Allison filter in the pan and and Allison spin on. With dex/merc fluid. Any advice would help. It has to be something I have done because it drove in the shop just fine. However it was reading around 150-160 Trans temp around town which is a bit high for this truck. Any advise is helpful and appreciated!