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Old 03-30-2015, 12:29 PM   #15
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Originally Posted by Kalamazookim View Post
Okay, this is something I should have found out before I started full-timing 11 months ago, but so I have to do something to switch on the Tow/Haul mode aside from pulling in the trailer connector? I am riding my brakes too much out west on these mountains. I've already had one brake job done.
Don't know what year model you have, but my '12 has a button on the dash under the radio, and there's a light that comes on in the instrument panel that comes on when in tow/haul mode.

Problem is, you have to push the button every time you restart the truck.
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Old 03-30-2015, 12:37 PM   #16
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I use tow/haul on my 2013 RAM 1500 whenever towing. I like the response when I tap the brakes going down hill. The stability control feature is well worth it if needed. It also reduces the number of shifts which should help preserve the transmission in the long run.
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Old 03-30-2015, 01:12 PM   #17
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I have a 2010 RAM2500 diesel....when in tow haul mode, the noticeable difference for me is when going DOWN a big mountain or hill...etc....

The exhaust brake as far as I can tell can only engage when you are at certain RPM's...or something like that....so like running above 50mph universally, let off the gas, it engages....but then as you get slowing down below that and you remain in a high gear when NOT in tow/haul mode, no exhaust brake.

With the tow/haul mode on, as I brake, and go below say 45mph, the truck seems to sense my braking, and tells the truck to automatically downshift...which keeps up the RPMs and keeps the exhaust brake engaged and slowing me down...

So in effect, without the exhaust brake on down a mountain, not in tow haul mode, mostly you will ride the brakes at say 20-35mph...but with it on, the exhaust brake will keep you slowed down with very little input from your brakes.

I do not keep on the tow/haul mode though when on fairly flat terrain...but almost always when I approach a situation when I known I will be going from say 60mph off highway down a steeper bypass then stop, I will engage it, so I do not have to ride the brakes much at all...

But when in other contexts...having it down shift will slow you down more than you will like based on the conditions....

This is just my experience keep in mind, I am not an expert....

Alls I can say is that thing going down a mountain is FANTABULOUS.
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Old 03-30-2015, 01:27 PM   #18
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I do not keep on the tow/haul mode though when on fairly flat terrain...but almost always when I approach a situation when I known I will be going from say 60mph off highway down a steeper bypass then stop, I will engage it, so I do not have to ride the brakes much at all...
Pharm,
You should rally leave the transmission in tow/haul mode whenever your towing. This will allow the transmission to shift at a little higher rpm's, and hold a gear a little longer without lugging the engine and drive train. Not using the tow/haul when pulling heavy can also cause higher transmission temps. Also as you already know it is easier to control the load by using the throttle vs. the brake pedal.
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Old 03-30-2015, 01:33 PM   #19
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Yeah, I actually have wondered....but when on the flat land just cruising, I am guilty of not putting it into tow haul mode....but when approaching any mountains and such, its in tow/haul for sure....but having read from others on here, I may leave it in tow/haul for sure...thankls.
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Old 03-30-2015, 01:57 PM   #20
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In our 2012 Ram 2500HD diesel, I have both the engine brake and the tow/haul mode on all the time when towing. The engine brake is always turned on when I get under way, even without the trailer.
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Old 03-30-2015, 02:35 PM   #21
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Originally Posted by Kalamazookim View Post
Okay, this is something I should have found out before I started full-timing 11 months ago, but so I have to do something to switch on the Tow/Haul mode aside from pulling in the trailer connector? I am riding my brakes too much out west on these mountains. I've already had one brake job done.
If you have a late model Ram 1500, use tow/haul whenever Airstreaming. Also use the transmission by manually shifting down to the power range you need towing (4th gear and about 2100 rpm is normal except when climbing steeper grades), and even down to 1st gear to get the engine braking needed on steep and therefore slower decent. The engine will rev up but that's how you get the power and the engine braking. Know what the maximum rpm is for the engine and stay below it.
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Old 03-30-2015, 03:44 PM   #22
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We waffle back and forth as to whether the tow/haul mode needs to be used when we are pulling our Airstream. Hats off to everyone for the comments and advice. The system is there...we need to engage it for safety as well as less wear and tear on the truck. Easy enough to do...so thanks!
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Old 03-30-2015, 03:51 PM   #23
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Pharmgeek- I did that on my Durango, figuring I'd take a mileage hit in tow mode. I tried it both ways and really didn't see a mileage change. So now I leave it tow/haul and like the way it works. I guess that's why they put in the vehicle.


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Old 03-30-2015, 04:43 PM   #24
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Ram is fairly clear on the use of Tow/Haul in the Owner's Manual.
When towing in hilly terrain use TowHaul to avoid overheating the transmission. Use it anytime towing "heavy" loads (which is otherwise defined as more than 2,000 lbs...in other words, ANY AirStream.)

Tow/Haul reconfigures the shifting points of the transmission and avoids torque-converter lockups in overdrive, according to the Ram service-center I use.

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Old 03-30-2015, 06:04 PM   #25
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ckottom, if you have the Hemi, what do you believe the maximum rpm is for downhill braking?
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Old 03-30-2015, 06:43 PM   #26
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ckottom, if you have the Hemi, what do you believe the maximum rpm is for downhill braking?
Although I would not be so bold to speak for all manufacurers...I'd wager that there is over rev protection built into the powertrain programs....even if you have manually selected a particular gear. That is on anything built in the last 10 years or so.
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Old 03-30-2015, 07:12 PM   #27
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2007 2500 diesel. when I tow it is in tow/haul. has worked fine for 150,000 miles, maybe 30% towing.
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Old 03-30-2015, 10:50 PM   #28
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ckottom, if you have the Hemi, what do you believe the maximum rpm is for downhill braking?
We need 3500 to 5000 rpm with our 2012 Hemi for good engine braking on steep downhill grades, and use the truck/trailer brakes to keep in that range as needed, never higher. This truck has no published rpm limit we know of, we follow the advice of our dealership.
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