Hey everybody,
2010 Silverado, 6.2, 6l80, turbo, 3200 stall.
The truck drives around town without much issue and I'm relatively happy with the tune. However, on the interstate, the truck won't shift out of 6th. I can see that it's pulling timing as I roll into the throttle but it won't shift out of 6th. I've looked through my trans tune but I'm not seeing anything that would keep it from downshifting. Any help would be greatly appreciated. Thanks!
Rebuilt 6L80 3200 Stall_Rev. 6.hpt
newesthighwaywot.hpl