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Old 04-17-2015, 11:01 PM   #1
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Tuning versus Tow/haul setting

when ford tunes the engine and transmission shift points they have no idea what the up fitter is going to strap onto the frame. In talking with the guys from 5 star tuning, they said that there is only one program/tune and that is for tow/hauling. Given that tidbit of info, one can only wonder what differences their program has over the settings used by ford when you press the tow/haul button on the shift lever.

Any thoughts or experience with this anyone?
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Old 04-19-2015, 08:06 AM   #2
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5 Star Tuning will alter your shift points via their tuner. I have heard positive comments about their tuning but I am not willing to void my 100,000 ESP warranty by doing so if something should go wrong!


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Old 04-22-2015, 08:28 PM   #3
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I second the first reply. I spoke with the folks at 5 star and their tune causes the converter to lock earlier and hold longer. This saves gas mileage and potentially reduces heat build up (The main killer of automatics) at the expense of more physical on the internals of the trans. Tow/Haul holds gears but does not lock the converter up as early allowing for more RPMs at the expense of more heat build up. However, their engineers built in a heavy duty trans cooler to handle that heat. You will hear people argue the merits of both approaches (early lockup vs not) in heavy haul situations but having experienced the sickening feeling when your planetary gear set exits the side of the tranny on a past vehicle I am a bit hesitant to knowingly add more strain to those components when I know my vehicle tends to run near its max GCWR.
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Old 04-22-2015, 09:42 PM   #4
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Out of about 10 new vehicles I have bought over the years I only bought two automatics one being the Sunseeker, the other a pickup because no one makes manuals anymore. Obviously I have never been a fan of automatics. However the Ford torqueshift is about the best auto I have ever driven. It's shift points are just how I like them in auto mode and between the manual gear selection and tow/haul mode you can hold pretty much any gear you want. With accelerator manipulation I can even get a pretty good torque converter lockup pattern. It would be nice to have an option for full manual control of the gear selection and torque converter lockup thru paddle shifters though.
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Old 04-23-2015, 09:11 PM   #5
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Following ATVer's comments, I have one complaint about the Ford E450's 5 - speed automatic. There's no selection for 4th gear. Many times, especially in rolling hills, I'd like to hold it in 4th so it doesn't upshift to 5th and downshift again in a few seconds.
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Old 04-23-2015, 09:44 PM   #6
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Following ATVer's comments, I have one complaint about the Ford E450's 5 - speed automatic. There's no selection for 4th gear. Many times, especially in rolling hills, I'd like to hold it in 4th so it doesn't upshift to 5th and downshift again in a few seconds.
Put it in Tow/haul mode, mine does not upshift to 5th in tow/haul.
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Old 04-24-2015, 09:20 AM   #7
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Our E450 will shift into 5th when tow/haul is selected once the load is reduced. It shifts at higher speeds and loads than without tow/haul. I sometimes forgot to switch tow/haul off and when I come to a stop it downshifts to 1st, nearly throwing me against the steering wheel.
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Old 04-24-2015, 09:31 AM   #8
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I heartily recommend the 5 Star people (Mike). The shift pattern on hills in OD was horrible, 5 Star cured that. If you need to go back to the dealer simply reinstall the factory tune, only takes a couple minutes. Plus you now own a code reader.
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Old 04-24-2015, 09:56 AM   #9
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If you need to go back to the dealer simply reinstall the factory tune, only takes a couple minutes.
I was recently talking with a Tuner and he indicated that even changing it back to factory tuning, they can tell it's been adjusted by the "flash date/time" that's stored in the computer.

Of course he also indicated that 95% of the time the dealer won't even check it unless it's an issue with the transmission that's being repaired under warranty and they can't attribute it to something else.
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Old 04-24-2015, 03:47 PM   #10
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Quote:
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I heartily recommend the 5 Star people (Mike). The shift pattern on hills in OD was horrible, 5 Star cured that. If you need to go back to the dealer simply reinstall the factory tune, only takes a couple minutes. Plus you now own a code reader.
I'm still trying to figure out how this 5-Star tuning works...When you purchase the package, does it include a computer module that you hook into the Ford unit? And they say on their website that it includes a monitor also. What does this monitor show? and can you change the settings depending on type of driving? I'm very technologically challenged, since it used to be, years ago, if someone was going to tune your vehicle you had to take it in and they got out their toolbox. Does the "Tune" consist of a chip or ?
Thanks
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