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Tow haul mode?

ib_leblanc
Explorer
Explorer
Pulling 10,000 lb fifth wheel with f350, 6.4 deisel.. do you have to always use tow haul mode even on flat interstates?
58 REPLIES 58

Fulltimer50
Explorer
Explorer
LastOfTheBohicans wrote:
Fulltimer50 wrote:
Cummins12V98 wrote:
Every time I start my truck I hit the TH and EB buttons. Keeps the line pressures up un the trans and keeps the trans from going into too high of a gear and lugging, example 6th at 45. Also allows the EB to work the best so the brakes last longer solo driving and also slows the trailer when towing. Also keeps the turbo/EB working properly.


Where is the EB button?


I have the same truck as you, 2011 F350SRW 6.7PSD.

There is no switch for the exhaust brake. It is always there. To activate, you just need to tap the brake.
I used it going down the Sunwapta Pass on Highway 93 in the National Park. It kept the whole rig at a nice even 80kmh. No stress, no white knuckles, no moving from gas to brake and back again.


That's kinda my point. There is no EB button. It works ALL THE TIME not just in TH mode. BUT the rpms have to be at least 3K for you to feel the difference. Try the manual mode and see for yourself.
George

2011 F350 PSD CC LB 4X4 DRW Lariate
2015 Mobile Suites 41RSSB4 5th Wheel

Us_out_West
Explorer
Explorer
RAS43 wrote:
john&bet wrote:
Allworth wrote:
The company would not pay to install it if they didn't think you should use it!

Trailer connected --- Tow/Haul on!
Not with my current truck I won't do that. I connect, put it in "D" and go. I push it occasionally towing or solo.


X2 I use it in our mountainous areas but on flat ground I do what you said-put it in drive and go. Just like with cruise control, I can control the truck better and get better fuel mileage when I control what the truck is doing. JMO


Best answer in this thread...thanks.
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RAS43
Explorer III
Explorer III
john&bet wrote:
Allworth wrote:
The company would not pay to install it if they didn't think you should use it!

Trailer connected --- Tow/Haul on!
Not with my current truck I won't do that. I connect, put it in "D" and go. I push it occasionally towing or solo.


X2 I use it in our mountainous areas but on flat ground I do what you said-put it in drive and go. Just like with cruise control, I can control the truck better and get better fuel mileage when I control what the truck is doing. JMO

azdryheat
Explorer
Explorer
caberto wrote:
When I'm towing. I set T/H mode and forget it. It does the job it's supposed to on flat, up and down hills, and haven't had any issues.
+1
2013 Chevy 3500HD CC dually
2014 Voltage 3600 toy hauler
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john_bet
Explorer II
Explorer II
Allworth wrote:
The company would not pay to install it if they didn't think you should use it!

Trailer connected --- Tow/Haul on!
Not with my current truck I won't do that. I connect, put it in "D" and go. I push it occasionally towing or solo.
2018 Ram 3500 SRW CC LB 6.7L Cummins Auto 3.42 gears
2018 Grand Design 337RLS

Allworth
Explorer II
Explorer II
The company would not pay to install it if they didn't think you should use it!

Trailer connected --- Tow/Haul on!
Formerly posting as "littleblackdog"
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2006 Chevy 3500 D/A LB SRW, RVND 7710
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I_am_still_wayn
Explorer
Explorer
ib_leblanc wrote:
Pulling 10,000 lb fifth wheel with f350, 6.4 deisel.. do you have to always use tow haul mode even on flat interstates?


What does your owner's manual say?

LastOfTheBohica
Explorer
Explorer
Fulltimer50 wrote:
Cummins12V98 wrote:
Every time I start my truck I hit the TH and EB buttons. Keeps the line pressures up un the trans and keeps the trans from going into too high of a gear and lugging, example 6th at 45. Also allows the EB to work the best so the brakes last longer solo driving and also slows the trailer when towing. Also keeps the turbo/EB working properly.


Where is the EB button?


I have the same truck as you, 2011 F350SRW 6.7PSD.

There is no switch for the exhaust brake. It is always there. To activate, you just need to tap the brake.

I used it going down the Sunwapta Pass on Highway 93 in the National Park. It kept the whole rig at a nice even 80kmh. No stress, no white knuckles, no moving from gas to brake and back again.
Me, DW, Five Crazy Felines, One RB Angel
2011 Ford F350 SD, PSD 6.7, SRW, CC
2011 Komfort 3230FRK

TakingThe5th
Explorer
Explorer
Cummins12V98 wrote:
Fulltimer50 wrote:
Cummins12V98 wrote:
Every time I start my truck I hit the TH and EB buttons. Keeps the line pressures up un the trans and keeps the trans from going into too high of a gear and lugging, example 6th at 45. Also allows the EB to work the best so the brakes last longer solo driving and also slows the trailer when towing. Also keeps the turbo/EB working properly.


Where is the EB button?


If you are asking about Ford I don't know. On my Ram it is next to the TH button on the dash.


My F350 doesn't have an exhaust brake, just tow/haul. The magic is in the transmission-it does some pretty aggressive and impressive downshifting to bring the speed down,
TakingThe5th - Chicago, Western Suburbs
'05 Ford F350 Crew 6.0 DRW Bulletproofed. Pullrite Super 5th 18K 2100 hitch.
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Cummins12V98
Explorer III
Explorer III
Fulltimer50 wrote:
Cummins12V98 wrote:
Every time I start my truck I hit the TH and EB buttons. Keeps the line pressures up un the trans and keeps the trans from going into too high of a gear and lugging, example 6th at 45. Also allows the EB to work the best so the brakes last longer solo driving and also slows the trailer when towing. Also keeps the turbo/EB working properly.


Where is the EB button?


If you are asking about Ford I don't know. On my Ram it is next to the TH button on the dash.
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2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

Fire5er
Explorer
Explorer
I always us tow haul when the 5er is connected.
2011 F350 CC, 6.7, LB, DRW.
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2014 Big Sky Montana
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cKarlGo
Explorer
Explorer
Jim and Barb wrote:
What I have read the Tow Haul is to lock up the torque convertor in the transmission. Without going to deep in it basically this reduces the fluid resistance that turns the internal parts that make you move. By eliminating this this will greatly reduce the heat in the transmission. This will reduce the problems associated with excessive heat problems and repair bills. With that being said I engage the button when I start the engine when I am towing. I tow with a 2006 Dodge 2500, 5.9 Cummins R 48 transmission with an added after market Aluminum transmission pan designed for cooling.


I would pay for an option that automatically turns on the tow haul mode when something is connected. My Chevy 3500 knows when something is connected anyway, so it couldn't be that huge of an engineering feat.

I miss having a physical switch that flips back and forth.
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greende
Explorer II
Explorer II
Fulltimer50 wrote:
Cummins12V98 wrote:
Every time I start my truck I hit the TH and EB buttons. Keeps the line pressures up un the trans and keeps the trans from going into too high of a gear and lugging, example 6th at 45. Also allows the EB to work the best so the brakes last longer solo driving and also slows the trailer when towing. Also keeps the turbo/EB working properly.


Where is the EB button?


Exhaust Brake
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Fulltimer50
Explorer
Explorer
Cummins12V98 wrote:
Every time I start my truck I hit the TH and EB buttons. Keeps the line pressures up un the trans and keeps the trans from going into too high of a gear and lugging, example 6th at 45. Also allows the EB to work the best so the brakes last longer solo driving and also slows the trailer when towing. Also keeps the turbo/EB working properly.


Where is the EB button?
George

2011 F350 PSD CC LB 4X4 DRW Lariate
2015 Mobile Suites 41RSSB4 5th Wheel

Buckeye_Chuck
Explorer
Explorer
SandSOrrell wrote:
I always (try to) remember to use T/H, even on flat runs. If I forget (and have a couple of times) DW reminds me. LOL I've found in my Chevy D/A it helps to slow you down on the ramps as you exit the freeway. Downshifts a little earlier as you slow - saves on braking some.


X2

-BC-
2012 F250 Lariat 6.5ft. bed, 6.2L, 3:73 Gears
2013 Sabre 33CKTS-6