Tow Haul.......When?
2003 GMC 2500HD pulling a roughly 11,000 LB 5th. Would you leave it in Tow/Haul on flat/level highways? Or do you put it in t/h and leave it?
Forum Discussion
Hoppypoppy wrote:
Help me understand.....if I am in T/H, I can forget about the "O/D Off" feature? The T/H will automatically make whatever shifts are necessary? Also did I understand correctly that the Allison will not kick in if O/D is off??? Trucks 12 years old and I am still learning stuff. Love it!!
What truck do you have again?
I guess I can't speak specifically for the earlier Duramax/Allison combos, but with my '06, I would turn on T/H, put it in "D" and that was about it. The transmission did an excellent job controlling the shifting. No hunting, no hanging up, no issues.
