2006 Ford E450 Transmission issue
Traveling over the Rocky Mts in 100 degree heat the transmission fan ran occasionally. After a stop for lunch the transmission ran when we started up and went into limp mode when we tried to accelerat...
Forum Discussion
Grit dog wrote:pianotuna wrote:Rolin wrote:
I don't understand exactly what Tow/haul does. I try to use it most of the time, but was experimenting to see what seemed to keep the transmission happy so we could limp home.
It locks out the overdrive.
Possible it’s just a downshift button as old as the rig is, but generally tow haul does not lock out any forward gears on the vast majority of vehicles
It's an "O/D Off" button. I have one on my 2002 F-250 with a 4R100 transmission, too. The Tow/Haul mode wasn't a thing until the 5R110W transmission was introduced.
