Tow Mode
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Mountain Pass
Joined: Aug 2012
Posts: 249
Likes: 0
From: Boise, Idaho
Mine wont shift up in T/H unless I get into the 60-65 range. Today I was on the flat doing 55-60 and it wouldn't shift up. So I took it out of t/h and it up shifted and RPM fell to 1500 insted of the 2500 it was running in T/H and Boost dropped to 10 insted of 15 PSI. Truck seemed much happier there.
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Joined: Jun 2012
Posts: 1,171
Likes: 2
I do the same thing, I take it out of T/H when I am driving around at under 60 mph so it shifts up. That's when towing under around 10K, and on flat roads. I often would put it in T/H to get engine braking on a steep hill near where I used to live, meant I could go down the hill with only a tap of brakes at the bottom. At night I often turn it off because I slow down a bit and it shifts into fourth, and because the light bugs me.
Brian
Brian
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Posting Guru
Joined: Sep 2009
Posts: 1,739
Likes: 0
From: Virginia beach, VA
I just recently started using it for hard stops, like when the a-hole in front of me slams their brakes for a yellow light. The engine braking really helps. I don't like it for driving though, I don't notice any difference in power from the gears being held for that extra 400 rpm.
Lead Driver
Joined: Oct 2010
Posts: 5,420
Likes: 16
From: Ouray, CO
Think of t/h as a semi-manual trans.
It tries to hold the gear when you lift off the gas
rather than let the vehicle coast freely,
Engine brakjng in a stick shift.
it also shifts up at higher rpms to keep the
engine from bogging down after the shift,
Since if towing heavy you'd want that.
It tries to hold the gear when you lift off the gas
rather than let the vehicle coast freely,
Engine brakjng in a stick shift.
it also shifts up at higher rpms to keep the
engine from bogging down after the shift,
Since if towing heavy you'd want that.
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