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Old 10-15-2015, 02:08 PM   #29
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I cannot choose a gear in my truck. I have 1, 2, D and the tow/haul button which I think just knocks off the top gear and/or holds gears a little longer before shifting.

But this chip/tuner has the ability to let me adjust shift points and save to the programs. Might mess with that after I learn how to do it.
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Old 10-15-2015, 05:40 PM   #30
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If you have a 4 speed transmission, and the choices of 1, 2, D and Tow/Haul, you probably have all you need to select the gear you want.
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Old 10-15-2015, 05:54 PM   #31
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Even when using the "TOW" mode, there is no reason why you can't pick the gear you think runs best for hilly terrain and stay there. Now I know that there is a difference between the diesel I have and the Hemi we're talking about, but for rolling terrain I put the transmission in 4th or 5th gear even in "TOW" mode just so that when I get to the steeper ups and downs there is no gear hunting and the engine just purrs up and growls down.
I have an automatic 6 speed transmission...how do I "pick the gear I want and stay there"?

The complaint I have with this truck is that while towing, it keeps going up and down 2 gears and never just settles in on one and stays there (until a hill or something comes up).

I am hoping that as I learn how to use this tuner, I can tune the tow program to stay in 5th and not even try to go to 6th. That would fix most of my problems.
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Old 10-15-2015, 06:23 PM   #32
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I have an automatic 6 speed transmission...how do I "pick the gear I want and stay there"?
I don't know. I don't know how to operate your truck. I have a '14 2500. I know how it works. I'm just trying to help knowing what little I know, not what I don't know.

If your truck is hunting between two gears while towing, that's not bad. Mine does on rolling terrain, even in "tow/haul", unless I pick the lower of the two gears it has been using, i.e. if switching between 4 and 5 constantly, I might pick 4 and let it rev if that seems to work better. I might have to reduce my speed a little, but I'm rarely in a hurry. The revs don't wear out the engine, but any lugging will. The exhaust brake I have works better at high revs anyways.

Hopefully using the "tow/haul" mode will work better for you.
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Old 10-15-2015, 07:05 PM   #33
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I don't know. I don't know how to operate your truck. I have a '14 2500. I know how it works. I'm just trying to help knowing what little I know, not what I don't know.

If your truck is hunting between two gears while towing, that's not bad. Mine does on rolling terrain, even in "tow/haul", unless I pick the lower of the two gears it has been using, i.e. if switching between 4 and 5 constantly, I might pick 4 and let it rev if that seems to work better. I might have to reduce my speed a little, but I'm rarely in a hurry. The revs don't wear out the engine, but any lugging will. The exhaust brake I have works better at high revs anyways.

Hopefully using the "tow/haul" mode will work better for you.
I figured you had a diesel, the way you were talking. (I will get one if I ever wear out this hemi...)

That said...you have a GREAT point about not being in a hurry and dropping the speed a bit, and seeing if it stays in one gear. Might work as well speeding up a little, to keep the rpms up a bit higher up in the torque range the engine wants to be in.

Honestly, that is what I am hoping this tuner will do.

I notice that with the 91 octane performance program going, it holds the gears longer, has much better response, and still lands in the 6th gear once I get to cruising speed, but seems to get there quicker without lugging.

I am hoping (pleasepleaseplease!!!) that the tow program does the same with the trailer behind it. Kind of like a tow/haul super-button.

Well, the final test is less than 24 hours away.

Not sure if I have internet where I am going, so might not chime back in until Monday or Tuesday.

Wish me luck!!!
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Old 10-16-2015, 11:01 AM   #34
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I think you'll like the tow tune. It should do exactly as you expect. Less lugging, more power and held in the power band longer.

I won't tow without my HemiFever tow tune flashed.
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Old 10-16-2015, 01:34 PM   #35
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Well, truck is tuned to Tow, trailer is hooked up, just waiting for the wife to get off work so we can shove off!!!
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Old 10-16-2015, 09:33 PM   #36
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Ok. Got here. 3 hours on semi hilly terrain. With tow program...NIGHT AND DAY!!!!

It was actually pleasant. Diwnshifted only a couple times on taller hills. Held cruising gear much better.

Got an even 9.0 mpg avg cruising around 2000 to 2250 rpms with level cruising at 1800.

I can easily live with this.
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Old 10-16-2015, 09:52 PM   #37
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Wow! Ok you got my interest peeked. :thumb
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Old 10-16-2015, 11:09 PM   #38
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Great news!
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