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Old 04-29-2015, 01:08 AM   #1
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We are new to the fiver world and will have many questions as I have just traded in my Ram 2500 Hemi for a 2015 Ram 3500 Dully 6.7L.

New to the diesel community as well and I am really liking the ride as it is quite smooth and I get better MPG in the 3500.

First question as I have been playing with the gadgets... I know and understand what the exhaust brake is but when would I use it in the "ON" mode and the "auto" mode?

Thanks
Darrin
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Old 04-29-2015, 07:25 AM   #2
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Full EB or "on" will start exhaust braking as soon as you let off accelerator, given the RPMs and load are right. Under 1250ish rpm and low speed it may not activate. When it's on auto, only when you depress the service brake will the EB activate under the same scenario as above. Essentially it will let you coast and slow only when you want it to.
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Old 04-29-2015, 07:31 AM   #3
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Most times I just leave my exhaust break on full
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Old 04-29-2015, 08:42 AM   #4
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Exhaust Braking

Thanks Chewie and Iceblaze.
Basically once I am towing and get into the mountains I can just leave it on and let the truck do the heavy work. Makes sense and is very cool. In my 2500 Hemi, even with trailer brakes, pulling my 28' car hauler with a car inside was sometimes quite a ride through the mountains.
Big D
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Old 04-29-2015, 08:46 AM   #5
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If you put the truck in tow haul it will bring the truck and trailer almost to a stop
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Old 04-29-2015, 11:16 AM   #6
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Welcome to the forum. If you really want to learn about your 3500 Ram than I would suggest joining Turbo Diesel Register .Com. The fee is $35 a year but you get a wealth of information plus a quarterly publication in a magazine style binder. You can cruise the site but you cannot post until you are a member.

I have been a member since 2007 when I bought my 2008 Mega Cab and I am a regular poster on that site.


What is nice is there is no advertising in the threads just on the header of the forum.
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Old 05-01-2015, 07:52 AM   #7
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That's what I do I have noticed when I pull my Columbus the exhaust brake handles it just fine when I pull my heavier Alfa I do have to use the breaks more but that trailer is almost 20k fully loaded
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