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Old 06-07-2015, 12:10 AM   #1
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RAM Cummins 2500 Diesel Exhaust Brake Question

Hi fellow RAM owners. I recently bought a 2015 2500 Laramie 4x4. Lots of things that I am still trying to figure out. I came here instead of the RAM forum. (Not very helpful) On the exhaust brake I push it once to engage it and twice to put it on automatic. Is is a good idea to keep it on Auto even when not towing? Some say yes and some say no. If I press it once to engage it while going downhill, is that best or auto (while towing). I have never owned a diesel so any help is appreciated. Also how low should you go while towing downhill
Thanks in advance
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Old 06-07-2015, 05:32 AM   #2
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I use the cummins forum ( Dodge Cummins Diesel Forum )
and they are usually very helpful and quick to reply. If you are just on a ram forum they might not have as many diesel owners.
I leave my exhaust brake on all the time on my 2012 and it is recommended to keep the soot from building up. I don't have DEF but I would think it would help yours as well. Mine is only only one stage, either off of on. But it works great coming down a grade as my 11k travel trailer doesn't push me down faster. I don't even have to use the brakes. My 2006 did not have one and it was no fun coming down mountains.
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Old 06-07-2015, 05:49 AM   #3
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I second the cummins forum! I keep mine on constantly as well on a 2011 no def. Also after towing be sure to let the engine idle a few minutes to cool the turbo down. I usually do this while unhooking trailer and hooking up utilities!
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Old 06-07-2015, 06:59 AM   #4
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Quote:
Originally Posted by Tom_OC View Post
Hi fellow RAM owners. I recently bought a 2015 2500 Laramie 4x4. Lots of things that I am still trying to figure out. I came here instead of the RAM forum. (Not very helpful) On the exhaust brake I push it once to engage it and twice to put it on automatic. Is is a good idea to keep it on Auto even when not towing? Some say yes and some say no. If I press it once to engage it while going downhill, is that best or auto (while towing). I have never owned a diesel so any help is appreciated. Also how low should you go while towing downhill
Thanks in advance
Hey Tom, I also just bought a 2015 but the SLT version with nav, backup camera and the big screen radio. Lots of bells and whistles to figure out. I had the 2007 5.9L before and this 6.7L is a HOSS! I too and trying to figure it all out but can't wait to use the exhaust brake feature. Getting my 5th wheel hitch put on tomorrow and leaving on our next trip Tuesday. Cutting it close.
Joe in Georgia
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Old 06-07-2015, 07:04 AM   #5
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Only use ours when towing,this is a very nice feature,and our integrated braking system works great as well...
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Old 06-07-2015, 08:44 AM   #6
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I leave mine in the "on" position when towing. Works great. I do not use it at all if I am just driving around. The manual is silent on full time use so I would assume leaving it on all the time would be no issue.
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Old 06-07-2015, 08:55 AM   #7
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When I run unloaded I do not use it but when I am towing I have been playing with it so far I just turn it on before going down steep grade s and hills haven't played with it too much yet.
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Old 06-07-2015, 10:30 AM   #8
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We have a 2014 Laramie 4X4 and while towing we push the button twice for automatic and leave it on. We have 6% and 7% grades while towing to our destination. We have no issues. It took a bit to figure it out but we use the automatic for the most part.
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Old 06-07-2015, 11:16 AM   #9
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Turn it on when you need it( towing), off when you are doing your regular day to day driving..
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Old 06-07-2015, 07:04 PM   #10
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I use mine all the time, towing or daily driving, saves on my brakes, often when exiting an interstate I don't even need my brakes, the engine and gears do it all. When towing it's even more impressive, it seems that the heavier the load, the better it works
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