Automatic Exhaust Brake feature on 2015 RAM 3500 - Dodge Cummins Diesel Forum
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post #1 of 5 (permalink) Old 12-28-2015, 01:03 PM Thread Starter
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Automatic Exhaust Brake feature on 2015 RAM 3500

Background: We used to have a 2004 Dodge 3500 with the Cummins Exhaust Brake - and I thought that was a great product. On the stick shift, we had a button to push to enable the exhaust brake feature. So, when I didn't want the exhaust brake to come on (let's say gently coasting down a hill) I would have to reach over and disable the exhaust brake. Or if I wanted the truck to warm up quickly I would enable the exhaust brake and if the outside temp was below something like 34 degrees, the exhaust brake would come on and the engine would go into high idle. Seemed like I was always enabling or disabling the exhaust brake.

Move forward to our new 2015 RAM 3500 Cummins/Aisin with "automatic exhaust brake". I am simply amazed as to how well this feature works our new truck! Everything I did with the manual enable/disable switch on the old truck is does automatically for me when I have the "automatic exhaust brake" enabled on this truck.

It knows when I want to gently coast, it knows to come on when it's cold out, it is unbelievable how good a job they did with this feature. I just cannot say enough good things about this feature on the 2015 Ram Cummins trucks.

I do wish there was a way to keep it enabled all the time but turning on the feature at each start-up is small price to pay for the features of the automatic exhaust brake.

​Signed Happy Camper,

Bill


2015 RAM 3500 Big Horn SRW, CC, LB, 4x4, Cummins/Aisin, 3.42, Flame Red

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post #2 of 5 (permalink) Old 12-28-2015, 03:04 PM
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Leave a 7 pin trailer hooked and truck will retain previous exhaust brake setting after restart.
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post #3 of 5 (permalink) Old 01-02-2016, 02:06 PM
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Quote:
Originally Posted by Warferox-Veritas View Post
Leave a 7 pin trailer hooked and truck will retain previous exhaust brake setting after restart.
Anyway to fool the truck to think a 7pin is installed? Just wondering.

2012 RAM 2500 Megacab Laramie Longhorn CTD | CCV filter gutted & CCV VTA | Sinister EGR/cooler deletes | 5" TBE w/ muff & 6" tip | Anarchy EFI w/ CSP5 | Edge CTS II w/ pyro | BAP 20's on Cooper ST Maxx LT275/65/20 |
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post #4 of 5 (permalink) Old 01-02-2016, 02:20 PM
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I have a 7 pin to 4 pin adapter with LED's that light up for testing, i am somewhat curious if that would do the trick. Not sure if truck goes off the brake lead or lights lead to decide though.

'97 CCLB 2wd NV4500, SAC 5x11, 15*, ARP 425, #100 plate, 3k GSK, AFC spring kit, 60# exh spgs, fluidampr, 4 in flowpro, BHAF, Torktech OFV, fast coolers, SB 425 single, 37337, dually swap, flatbed.
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post #5 of 5 (permalink) Old 01-02-2016, 03:41 PM Thread Starter
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Originally Posted by Warferox-Veritas View Post
Leave a 7 pin trailer hooked and truck will retain previous exhaust brake setting after restart.
Ya know, I just noticed that yesterday. I had a little flatbed trailer connected and the truck exhaust brake settings stayed - ya learn something new everyday!

Bill

2015 RAM 3500 Big Horn SRW, CC, LB, 4x4, Cummins/Aisin, 3.42, Flame Red

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