Transmission work

[Dave R]

Originally Posted by Belmont Resident

From my understanding of how this transmission operates. When you push in the tow & haul button it drops the tranny down into lower gears but also keeps the torque converter from locking up. I only put it in tow & haul when towing my dump trailer and when plowing. Other then that I have always just left it in the normal drive mode.
2004 with over 130K on it, been plowing 11 or 12 years, towing boats and work trailers, I'd say it's been doing OK. Now if ford could make a truck that didn't rot out I'd be more inclined to buy a new one instead of keeping this and replacing my commuter vehicle.

My "truck" (99 Dodge Durango) does not have a tow haul mode, only "normal" or "OD off". It does not affect the TC lockup function.

I can understand your reluctance to use "tow haul" mode for normal driving if it keeps the TC from locking up. It probably increases the shift point RPM too.