Quote:
Originally Posted by JackandJanet
It's fairly normal to see the lock only in O/D, BigSur (sorry I'm late getting back to you but we took the trailer off camping up on Mt Graham and there's no internet, or anything else, including potable water, where we were). There IS a beautiful mountain stream though.
If you lock out the O/D, I'm sure you'll see the TC lock up in third. When I'm pulling my trailer up the mountain, I usually put the transmission into 2nd gear, to keep it from shifting so much. The TC will lock up in 2nd too, when the loading is right.
The shifts I was talking about are the "Part Throttle 1-2, 2-3 and 3-4 upsift/downshifts". They're in the custom options menu, I think next to the TC lock/unlock choice. These only effect when shifting occurs in "normal driving", when you accelerate like average traffic in town. The WOT shifting behavior is completely separate from this.
Part throttle shifting is governed by speed and by throttle position. If you increase the throttle, up and down shifting occurs at higher speeds. With a positive adjustment, up and down shifting would occur at an even higher speed at a given throttle position.
- Jack
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Thanks for clarifying. I might give that a try. The truck has only done this once since my May camping trip, and that was over this past weekend when starting up a hill. I went a spoke with my mechanic yesterday (Ford specific), and he stated that I shouldn't have any worry of damaging anything and that it would be hard for them to diagnose the problem if it can't be repeated. With that said, I think I'm going to wait for my custom tune, load it, and see how it drives. I'll either need to make changes all the way around or hopefully just to the tow tune.
Hope you had a good time on your trip. Sounds fun.