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Old 07-30-2016, 04:12 AM   #1
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Transmission tow mode

I have a new class A on a F53 ford chassis. Question is with transmission in "tow mode" ( button pushed in on shifter) pulling a tow vehicle will trans shift up enough to maintain highway speed ( 50 - 65 ) without cranking a lot of RPM? I owned a class B RV on a Chevy 3500 chassis with trans in "tow mode" the engine cranked out high RPM at highway speeds. I had to take trans out of "tow mode" to get into a better cruise speed.
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Old 07-30-2016, 06:58 AM   #2
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The "Tow Haul" button on the Ford when pushed will give you engine braking in all gears,raise the rpm shift points and hold gears longer so you don't get as much gear hunting .
Does not change the need for rpm to climb hills though.
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Old 07-31-2016, 04:52 PM   #3
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The higher rpms in tow mode are because it makes the transmission hold the gears longer. If you leave it there it will eventually shift to Overdrive and cruise along. If you are pulling hills and or towing a car your going to need the higher RPMS to keep the load moving. Don't be afraid to mash that pedal and it will keep moving.
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Old 07-31-2016, 05:48 PM   #4
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The V-10s scream .

No way around it, other than go slower. They, I am told, are designed that way.

Ford V10 UltraPower Update
Old information but gives you an idea what the curves look like (post 6) and why they scream to get the job done.

Keeping the oil and air filters changed on the recommended schedule is important to its longevity.
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Old 08-04-2016, 07:28 AM   #5
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Love my 5r110 with tow/haul. So much better than the 4r100.
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