Go Back   DodgeForum.com > Dodge Trucks > Dodge Ram > 4th Gen Ram Tech
Sign in using an external account
Register Forgot Password?


4th Gen Ram Tech 2009+ and up Rams: This section is for TECHNICAL discussions only, that involve the 2009 and up Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

When to use Tow/Haul mode?

Reply
 
 
 
 
Thread Tools Search this Thread
  #1  
Old 10-05-2009, 11:29 AM
bremsstrahlung's Avatar
bremsstrahlung bremsstrahlung is offline
Amateur
 
Join Date: Aug 2009
Vehicle: 2008 Hemi Sport
Posts: 46
Default When to use Tow/Haul mode?

I was wondering if I should bother with tow/haul mode. I'm going to be taking a 300mile trip towing a trailer with two dirtbikes this weekend. The only reason I ask is because the MDS will disable for the entire trip if I do. Is there a towing weight that you would consider the Tow/Haul mode unnecessary? I'm figuring the trailer and both bikes to be around 1,000 to 1,200 lbs.

Thanks
This ad is not displayed to registered and logged-in members.
Register your free account today and become a member on Dodge Forums!
Reply With Quote
  #2  
Old 10-05-2009, 11:56 AM
ran jr's Avatar
ran jr ran jr is offline
Veteran
 
Join Date: Oct 2005
Vehicle: 2009 Ram 1500 Sport CC 4x2
Location: NW Arkansas
Posts: 461
Default

I use mine everytime I tow anything. It keeps the truck from hunting between 4th & 5th so much plus it will downshift the transmission if you hold the brake for a bit. Try it both ways and decide for yourself which way you like better. The MDS won't be on when pulling if you're using T/H mode or not. It may come on when you let off the throttle but you don't need a light to tell you that.
__________________
'12 Wrangler Unlimited Rubicon
'09 RAM 1500 Sport, Black - SOLD
Reply With Quote
  #3  
Old 10-05-2009, 12:10 PM
DodgeRam09 DodgeRam09 is offline
Professional
 
Join Date: Feb 2009
Posts: 152
Default

My mechanic told me any time the trailer is hooked up I should hit the tow button. I even do it for my 12' boat.
Reply With Quote
  #4  
Old 10-05-2009, 12:55 PM
War Horse's Avatar
War Horse War Horse is offline
All Star
 
Join Date: Jun 2009
Vehicle: 09 RAM 4x2 Bright Silver Sport
Location: San Antonio, TX
Posts: 968
Default

I'd say any time you're pulling a trailer or any time you've got a larger load in the back like a bed full of dirt, full load of blocks, or something heavy back there. I wouldn't use T/H when only hauling a single bike in the back of the bed.
__________________
2009 RAM 4x2 Brilliant Silver Crew Cab Sport
Recon LED 3rd BrakeLight, Bakflip Roll-X, Mopar Nerf Bars, 20% front 5% rear tint, Flowmaster Super40, LineX, 4.10 gears, Auburn LSD, Superchip, Airaid CAI, DayStar 2" Level Kit, BFGoodrich 305/50/20 A/T tires
Reply With Quote
  #5  
Old 10-05-2009, 01:03 PM
bremsstrahlung's Avatar
bremsstrahlung bremsstrahlung is offline
Amateur
 
Join Date: Aug 2009
Vehicle: 2008 Hemi Sport
Posts: 46
Default

Alright, good info. If the fuel saver isn't going to activate whether tow/haul is on or off, then why not just use it. I was figuring if the tow/haul mode was going to be overkill, then why not save a bit of gas on the trip with and not override the MDS unnecessarily.
As far as dealer mechanics go, I am wary about their advice at times. Too often, they will just recite what their supposed to say to customers. Or, because they have to be knowledgeable of so many cars, they can't have intimate or detailed info on any. I like these types of forums, usually the actual owners will have the highly detailed, empirical knowledge that dealer mechanics often lack.
Reply With Quote
  #6  
Old 10-05-2009, 02:37 PM
DodgeRam09 DodgeRam09 is offline
Professional
 
Join Date: Feb 2009
Posts: 152
Default

This mechanic is my Dad's best friend. We just had our 96' Dodge Ram 3500 dually diesel in the shop for transmission. It's only hauled a landscape trailer with a couple lawn mowers on it. He said no matter what truck and what your hauling, turn the overdrive off. Hence hit the tow/haul button. He said it takes all the work off the transmission.
Reply With Quote
  #7  
Old 10-05-2009, 09:12 PM
Inbred's Avatar
Inbred Inbred is offline
Professional
 
Join Date: Mar 2009
Vehicle: 2009 Ram 1500 ST Quad 4X4
Location: Lancaster, PA
Posts: 203
Default

I agree with using tow/haul always when towing or hauling, but disagree with the statement that mds won't engage when towing. Every once in a while I forget to hit the button, and the reminder is when mds kicks in.
__________________


Reply With Quote
  #8  
Old 10-06-2009, 07:38 AM
Dodge12345 Dodge12345 is offline
Registered User
 
Join Date: Sep 2009
Vehicle: 2009 Ram SLT CC 4x4 5.7 Hemi 3.55
Location: Ontario, Canada
Posts: 32
Default

Using the tow/haul is only going to increase the life of your drive train, stops the tranny from hunting, keeps the engine more in the power band. I only pull 5k boat/trailer so I always use it. If on a straight flat stretch only pulling 1200lbs I may be tempted to not use the tow/haul mode, the engine does have lots of torque?!?
Reply With Quote
  #9  
Old 10-06-2009, 12:10 PM
kyhemi1 kyhemi1 is offline
Registered User
 
Join Date: Jun 2009
Posts: 10
Default

Is it good to use on times I want to open my truck up and run a little bit (not towing) or should I leave it off. The truck feels like it has quicker take off when I turn it on.
Reply With Quote
  #10  
Old 10-06-2009, 12:24 PM
seigell seigell is offline
Veteran
 
Join Date: Apr 2009
Vehicle: 09 Ram 1500 CC 4x4 Hemi RamBox 3.92 20"
Location: Gilbert AZ
Posts: 255
Default

Regardless of towing anything, T/H mode is also Great for driving down Mountain Roads... The added control provided by the "semi-intelligent / brake assisting" engine braking is rather important when your 5000lb truck is succumbing to the pull of gravity and your "normal" cruise control simply "gives in" after one down-shift that actually disables the second that you touch the brake pedal.
__________________
09 Ram 1500 CC 4x4 Hemi RamBox 3.92 20"
Added: Mopar Wheel-to-Wheel 5" SS Steps
Toyo Open Country A/T LT275/65/20
Rhino TuffGrip Lining / Truxedo LoPro
Reply With Quote
  #11  
Old 10-06-2009, 03:25 PM
ct1 ct1 is offline
Registered User
 
Join Date: Apr 2009
Posts: 24
Default tow haul mode

I have only pulled a 12' lawn trailer with some furniture on it without tow haul mode on and I was kinda dissappointed in the effort it took to accelerate. I could really notice the trailer was there. Finally when I came to a stop I switched to tow haul mode and it makes a huge difference. Accelleration was great and the feel of the trailer behind was much less.

I am just wondering if you can shift to tow haul on the fly or is it reccommended to be at a low speed or stopped completely?
Reply With Quote
  #12  
Old 10-06-2009, 10:15 PM
Brummo's Avatar
Brummo Brummo is offline
Captain
 
Join Date: Mar 2008
Vehicle: 09 RAM 1500 Crew Cab HEMI Bright Silver Sport 4x4
Location: Cedar Rapids, Ia
Posts: 581
Default

I only use tow haul when pulling the boat (16 ft) going up and down hills and through town. It is nice that it downshifts going down hills to prevent brake usage. When running down the interstate pulling the boat I don't use it often. My truck doesn't hunt for gears except towing around the 55 mph range. Towing at 70 mph, pulls great. That's just me. I think the 3.92 help alot..
I shift on the fly when I need it, playing around town with higher shift points and the downshifting..
__________________
'09 Ram 1500 HEMI 4X4 Crew Bright Silver Sport package etc..
Line-X, Truxedo Low Profile tannau, DeeZee 5" oval steps, color matched bug shield/hood deflector

Last edited by Brummo; 10-06-2009 at 10:19 PM..
Reply With Quote
  #13  
Old 10-07-2009, 06:25 AM
hounddogg hounddogg is offline
Record Breaker
 
Join Date: Aug 2009
Vehicle: 2009 1500 Slt Quad Cab Hemi
Location: Ila Georgia
Posts: 1,264
Default

With lite loads, small trailers use common sense and check your trans temp and judge for yourself.I'd think under a 2k trailer would proberly be a no issue.I'd think with 3.21 rear gears I'd use it of OVER a 1000 LB trailer as that is a pretty tall gear.Understand T/H disables 5th gear.Turns 4th into a 1 to 1 instead of a overdrive gear and underdrives the other gears with 2nd having TWO ratio's. It does a LOT
__________________
2009 1500 Slt Quad Cab 2wd Hemi.3.92 gear.White with pebble interior.Chrome bumpers,chrome door handles 20 inch wheels.Stainless Nerf bars,Tuff Country Tonneau cover,bedliner,Magnaflow XL 24 inch muffler with dual pipes exiting behind rear tires.2008 Corvette convertible.2003 Dodge dually diesel.2010 Mercury Gran Marquis.

Last edited by hounddogg; 10-07-2009 at 06:29 AM..
Reply With Quote
  #14  
Old 10-07-2009, 08:10 PM
bremsstrahlung's Avatar
bremsstrahlung bremsstrahlung is offline
Amateur
 
Join Date: Aug 2009
Vehicle: 2008 Hemi Sport
Posts: 46
Default

Quote:
Originally Posted by ct1 View Post

I am just wondering if you can shift to tow haul on the fly or is it reccommended to be at a low speed or stopped completely?

I'd like to know that, too. I figure the best way would be to mess around with T/H by turning it on and off while cruising on the interstate and see what happens.

By the way, if T/H disables 5th gear, wouldn't running in a constant 4th at interstate speeds increase engine and tranny temps by running everything at a higher rpm? ( i mean, logically, the answer is no... but why not? )
Reply With Quote
  #15  
Old 10-08-2009, 04:50 AM
hounddogg hounddogg is offline
Record Breaker
 
Join Date: Aug 2009
Vehicle: 2009 1500 Slt Quad Cab Hemi
Location: Ila Georgia
Posts: 1,264
Default

It pulls easier.Less HP to move and hold speed with a load.
__________________
2009 1500 Slt Quad Cab 2wd Hemi.3.92 gear.White with pebble interior.Chrome bumpers,chrome door handles 20 inch wheels.Stainless Nerf bars,Tuff Country Tonneau cover,bedliner,Magnaflow XL 24 inch muffler with dual pipes exiting behind rear tires.2008 Corvette convertible.2003 Dodge dually diesel.2010 Mercury Gran Marquis.
Reply With Quote
  #16  
Old 10-12-2009, 03:29 PM
JoeVan JoeVan is offline
Registered User
 
Join Date: Aug 2009
Posts: 4
Default

6 trips hauling my 19 ft Center Console boat about 2500 pds loaded .
Approx 2 hrs round trip.
Mostly highway with some hills (I live in CT)
I have towed with and without TH
Braking on tow haul is great especially on back road hills near my house.
I had better fuel mileage +.5 mpg using tow haul and a steady speed 65-70 mph.
I try and use it when I think about it.
Reply With Quote
  #17  
Old 10-12-2009, 09:50 PM
Duso02 Duso02 is offline
Veteran
 
Join Date: Apr 2007
Location:
Posts: 489
Default

Quote:
Originally Posted by bremsstrahlung View Post
By the way, if T/H disables 5th gear, wouldn't running in a constant 4th at interstate speeds increase engine and tranny temps by running everything at a higher rpm? ( i mean, logically, the answer is no... but why not? )
When towing, you shouldn't be going that fast for it to be a concern. Besides, there are still a lot of 3 speeds and 4 speeds out there that do quite fine.
__________________
2011 Blue Hemi QC 1500 Sport
Reply With Quote
  #18  
Old 10-12-2009, 10:47 PM
Brummo's Avatar
Brummo Brummo is offline
Captain
 
Join Date: Mar 2008
Vehicle: 09 RAM 1500 Crew Cab HEMI Bright Silver Sport 4x4
Location: Cedar Rapids, Ia
Posts: 581
Default

When ever I switch to t/h on the highway my Evic still says 5. Does it really shift into 4, or does it just lock the torque converter in 5? Guess I should try again and watch rpm's. I don't recall it changing that much, few hundred.
BTW, I switch all the time on the fly. Don't know why it would hurt since the truck automatically downshifts to pass.
__________________
'09 Ram 1500 HEMI 4X4 Crew Bright Silver Sport package etc..
Line-X, Truxedo Low Profile tannau, DeeZee 5" oval steps, color matched bug shield/hood deflector
Reply With Quote
  #19  
Old 10-14-2009, 09:19 PM
bremsstrahlung's Avatar
bremsstrahlung bremsstrahlung is offline
Amateur
 
Join Date: Aug 2009
Vehicle: 2008 Hemi Sport
Posts: 46
Default

I got back from my trip a few days ago. I ended up using the t/h for most of the time. Basically, it just seemed like the natural thing to do and felt better when the truck downshifted on the highway when I activated it on the fly, plus the downshifts while braking worked well, too.
Of course, this was mostly in my mind, i'm sure, because towing the 1200lb trailer felt invisible behind the wheel no matter what mode.
I guess at that weight it's a non-issue... the truck ran fine either way, just differently.
I will say one other thing though, my hand-calculated mpg was 13.1 for the trip where it is normally appx 15.5 without a load. Next time I will try not using t/h at all and see what happens. ( i did sit in 2hrs of traffic on the way and 1hr of traffic on the way back... so the data is kinda corrupt. )
Reply With Quote
  #20  
Old 10-18-2009, 12:23 AM
mcs mcs is offline
Amateur
 
Join Date: Sep 2009
Vehicle: 2010 Dodge Ram 1500 Laramie 4x4 QC Black [deleted 2-tone]3.92 gear,121 tank,lockpick,bakflip,line-x,
Location: Ontario Ca.
Posts: 32
Default

I drive in tow/haul for city driving.Don't like when in MDS,and i want to give it a little gas [not enough to have it switch out of MDS mode]the truck bogs when in 4 cylinders.Willing to give up top gear ,for better responce in city driving.Hyway MDS not so bother-sum.Waiting for Diablo tuner for 2010 so I can shut down MDS but keep 5th gear.
__________________
2010 Dodge Ram 1500 Laramie QC Black [2-tone deleted]3.92 gear,121 tank,1800 klm,Line-X Ontario,Ca.
Reply With Quote
Old 10-18-2009, 12:23 AM
 
 
 
Reply




Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Join DodgeForum
Advertising

Featured Sponsors
Vendor Directory
Our Sponsors
All times are GMT -4. The time now is 04:05 PM.

Internet Brands, Inc.


Contact Details & Emails