Reply
 
Thread Tools Display Modes
Old 09-20-2019, 12:33 PM   #1
Senior Member
 
Ejs4029's Avatar
 
Join Date: Apr 2015
Location: Denver, NC
Posts: 1,190
RAM Diesel Exhaust Brake ?

Just curious how other RAM diesel owners are using there exhaust brake while towing and not towing ?...I was generally using full exhaust brake but have been doing more experimenting using the automatic exhaust braking by say for instance going downhill and maintaining a steady speed and if I want to go slower I hit the brakes and it will maintain my new speed.


Automatic Smart Exhaust Brake Automatic Exhaust Brake technology delivers smoother, less aggressive exhaust braking characteristics during downhill descents. Although it can apply full exhaust braking force if needed, Automatic Exhaust Brake may not apply obvious braking if the vehicle speed is not increasing. Automatic Exhaust Brake is intended to maintain vehicle speed, while Full Exhaust Brake is intended to reduce vehicle speed.

Automatic Exhaust Brake can be enabled by pushing the exhaust brake button again anytime after the normal Full Exhaust Brake has been turned on. The “Exhaust Brake ” in the EVIC/DID will change from Yellow to Green when Automatic Exhaust Brake is enabled. Pushing the exhaust brake button again will toggle the exhaust brake mode to off.
__________________

__________________
2015 Ram 2500 CTD,CC,SB,4x4
2016 Rockwood 2703 Emerald Edition
Husky CenterLine TS Hitch
TST 507 TPMS
Progressive Industries EMS-PT30C
Ejs4029 is offline   Reply With Quote
Old 09-20-2019, 12:46 PM   #2
Fulltime family RVer
 
ependydad's Avatar
 
Join Date: Nov 2011
Posts: 19,209
Thanks for posting this. I haven't read any of the owner's manual but had wondered what the difference between the two settings was.
__________________

__________________
2018 Ram 3500 DRW/crew cab/long bed/4x4/4.10 gears pulling a 2017 Spartan 1245 by Prime Time
Checkout my site for RVing tips, tricks, and info | My family and I have fulltimed since June 2015
ependydad is online now   Reply With Quote
Old 09-20-2019, 12:54 PM   #3
Broken Toe
 
Cowracer's Avatar
 
Join Date: Jan 2012
Location: Imperial (St. Louis) MO
Posts: 3,353
I've played around with it in my new truck. The EB drops out at like 1200 rpm or something like that. If you are in tow/haul with MAX EB selected, it will downshift (assuming you have an automatic) to keep revs up for most engine brake action.

I've watched on my display, and it said it made 78HP in braking the one time I used it. I do know this.... MAX EB does not mean 'maybe'. It'll flat haul you down almost like putting on the service brakes. Dunno if it adds any trailer brake yet, but it's pretty impressive either way.

Tim
__________________
FROG Member MO-0008-571 Since 20124444444444My Project Blog: https://cowracer.blogspot.com/

"Camper" 2016
Rockwood Signature Ultralite 8329ss
"Casper" 2017 Ram 2500 Laramie Diesel
ProPride 3P Hitch - "Yeah. It's worth it."
Cowracer is offline   Reply With Quote
Old 09-20-2019, 01:26 PM   #4
Member
 
Join Date: Apr 2019
Posts: 61
Quote:
Originally Posted by Cowracer View Post
I've watched on my display, and it said it made 78HP in braking the one time I used it.
Tim
As a gas truck owner, and not familiar with Diesel Trucks, may I ask how you know this?
The truck actually shows you HP created by using an exhaust brake?
__________________
Me, the wife, & 2 daughters (9 & 4yrs old)
2019 Palomino Puma QBSS
2015 Silverado LTZ / Z71 w/ many upgrades
GXPWeasel1 is offline   Reply With Quote
Old 09-20-2019, 02:03 PM   #5
Senior Member
 
Join Date: Sep 2016
Location: Greensboro NC
Posts: 941
I played with mine between full and auto, and running with my camper I typically have it in full. By itself running around town or such I may run it in auto since it wont engage until I hit the brakes. I have a 2018 with the 6 speed manual G56 tranny, and so it gets a little jerky when running from stop light to stop light with the full EB on.
__________________
Ron and Kathy
2019 Cougar 369BHS 5'VR
2018 Cherokee Limited 304 BH (Traded)
Joyfully Towed with a 2018 RAM 3500 6.7 G56
ronheater70 is offline   Reply With Quote
Old 09-20-2019, 03:15 PM   #6
Broken Toe
 
Cowracer's Avatar
 
Join Date: Jan 2012
Location: Imperial (St. Louis) MO
Posts: 3,353
Quote:
Originally Posted by GXPWeasel1 View Post
As a gas truck owner, and not familiar with Diesel Trucks, may I ask how you know this?
The truck actually shows you HP created by using an exhaust brake?
Yep. The gauge cluster has a lot of 'pages' on it for display between the gauges. One is a combo gauge showing Boost pressure and EB horsepower.


Tim
Attached Thumbnails
Click image for larger version

Name:	gauges.png
Views:	106
Size:	543.1 KB
ID:	215431  
__________________
FROG Member MO-0008-571 Since 20124444444444My Project Blog: https://cowracer.blogspot.com/

"Camper" 2016
Rockwood Signature Ultralite 8329ss
"Casper" 2017 Ram 2500 Laramie Diesel
ProPride 3P Hitch - "Yeah. It's worth it."
Cowracer is offline   Reply With Quote
Old 09-20-2019, 03:55 PM   #7
Senior Member
 
W5CI's Avatar
 
Join Date: Jan 2016
Location: Carlisle, Arkansas
Posts: 1,284
Quote:
Originally Posted by Ejs4029 View Post
Just curious how other RAM diesel owners are using there exhaust brake while towing and not towing ?...I was generally using full exhaust brake but have been doing more experimenting using the automatic exhaust braking by say for instance going downhill and maintaining a steady speed and if I want to go slower I hit the brakes and it will maintain my new speed.


Automatic Smart Exhaust Brake Automatic Exhaust Brake technology delivers smoother, less aggressive exhaust braking characteristics during downhill descents. Although it can apply full exhaust braking force if needed, Automatic Exhaust Brake may not apply obvious braking if the vehicle speed is not increasing. Automatic Exhaust Brake is intended to maintain vehicle speed, while Full Exhaust Brake is intended to reduce vehicle speed.

Automatic Exhaust Brake can be enabled by pushing the exhaust brake button again anytime after the normal Full Exhaust Brake has been turned on. The “Exhaust Brake ” in the EVIC/DID will change from Yellow to Green when Automatic Exhaust Brake is enabled. Pushing the exhaust brake button again will toggle the exhaust brake mode to off.

my 2015 RAM doesn't work that way, I can turn it on and it will work anytime I release the throttle pedal, However if I go down a steep grade it wont work at all. I just had this happen as I was leaving my favorite campground. I had to ride the brakes down a steep two mile hill. And there is no way I have found to get the Exhaust brake light to turn Green
__________________
2005 Cedar Creek 30RLBS/TrailAir Hitch/ MORryde 7K IS/Disc Brakes/ PI PT-50 EMS/ RV Flex Armor Roof
2015 RAM 3500 DRW 6.7 Cummins 3.42/ Garmin 760RV
40 Gal TransferFlow fuel tank/ TST 507
Amateur Radio W5CI 2017 Days Camping 77
2018 Days Camping 44
W5CI is offline   Reply With Quote
Old 09-20-2019, 04:05 PM   #8
Senior Member
 
koller1509's Avatar
 
Join Date: Apr 2017
Location: Jefferson, PA
Posts: 379
Quote:
Originally Posted by W5CI View Post
my 2015 RAM doesn't work that way, I can turn it on and it will work anytime I release the throttle pedal, However if I go down a steep grade it wont work at all. I just had this happen as I was leaving my favorite campground. I had to ride the brakes down a steep two mile hill. And there is no way I have found to get the Exhaust brake light to turn Green
When set to full, it will come on anytime you are completely off the throttle. If you set to auto it will come on after 5 seconds completely off the throttle or if you apply the brakes. My 14 Ram only displays orange, I think the green is a newer thing.
__________________
Larry
2014 Ram 3500 Dually 4x4 6.7 Cummins
2017 Sandpiper 378FB
koller1509 is offline   Reply With Quote
Old 09-20-2019, 04:07 PM   #9
Senior Member
 
Lins's Avatar
 
Join Date: May 2016
Location: Yellowknife
Posts: 663
Quote:
Originally Posted by ronheater70 View Post
and running with my camper I typically have it in full.
Same here. Mostly because quite often I need to slow down for traffic, not just maintain speed where automatic would probably be better
__________________
2007 Rockwood 2701SS
2017 Ram 2500 Granite Crystal SAP Laramie 6.7L
2014 Triumph Bonneville. NH Togas, TTP Tune 3
1953 GMC 9314
Lins is offline   Reply With Quote
Old 09-20-2019, 07:36 PM   #10
Senior Member
 
Join Date: Jan 2019
Location: Reno, NV
Posts: 833
Quote:
Originally Posted by Cowracer View Post
Yep. The gauge cluster has a lot of 'pages' on it for display between the gauges. One is a combo gauge showing Boost pressure and EB horsepower.


Tim
I don't have that EB horsepower readout on my Tradesman dash, that must only be on the upgraded models such as Bighorn and Laramie.
I do have the two stage orange and green EB settings.
upflying is offline   Reply With Quote
Old 09-20-2019, 08:26 PM   #11
Senior Member
 
Join Date: Sep 2019
Posts: 106
I thought my 2015 Tradesman had that visual gauge in the center display, it was boost/exhaust brake.


Now I also have 2 Aisin transmissions and (a 15 and an 18) both had Tow Haul mode.


First the exhaust brake. Normal highway driving with truck camper or towing, I would put it in auto mode. This would cause brake to come on when I applied brakes.or when the cruise control was set and it needed to slow down.


But if I was in traffic, or in real hilly country I would have it on Full. When in full, you can control it with your foot. let off throttle and it comes on (after second or so delay as it waits for rail pressure to come down). Just touch the throttle and it will go off. This allows you to control the brake on or off with your foot going down hills.


Now if you turn on the tow/haul mode, not only does the trans holds a higher RPM and up shift later when accelerating, it also down shift sooner as you slow down so the exhaust brake can produce more stopping power.


but both Tow/Haul mode with its hither RPM, as well as full exhaust brake every time you let off throttle will cost you a little MPH.


With 4:10 gears running 14,000K GVW with the truck camper on , Ebrake on Full, Tow haul mode turned on, I could be running a road with traffic lights, light turns yellow ahead of you, let off throttle and truck will slow down quick enough that you almost need brake lights. All the way down until around 25mph until you need to hit the service brakes.
__________________
2019 Forest River Forester MBS 2401R
TowPro is online now   Reply With Quote
Old 09-20-2019, 09:20 PM   #12
Lets go camping!
 
str8t six's Avatar
 
Join Date: Dec 2017
Location: VA
Posts: 209
Quote:
Originally Posted by upflying View Post
I don't have that EB horsepower readout on my Tradesman dash, that must only be on the upgraded models such as Bighorn and Laramie.
I do have the two stage orange and green EB settings.
you should. its under vehicle info. cycle thru and see. its near the boost readout.

my 2016 has it.
__________________
2014 Rockwood Mini Lite 2504s
2016 Ram 3500
str8t six is offline   Reply With Quote
Old 09-20-2019, 09:21 PM   #13
Lets go camping!
 
str8t six's Avatar
 
Join Date: Dec 2017
Location: VA
Posts: 209
Quote:
Originally Posted by Cowracer View Post

I've watched on my display, and it said it made 78HP in braking the one time I used it. I do know this.... MAX EB does not mean 'maybe'. It'll flat haul you down almost like putting on the service brakes. Dunno if it adds any trailer brake yet, but it's pretty impressive either way.

Tim
go down a big hill with the trailer. ive had mine in the triple digits.
__________________
2014 Rockwood Mini Lite 2504s
2016 Ram 3500
str8t six is offline   Reply With Quote
Old 09-20-2019, 09:22 PM   #14
Lets go camping!
 
str8t six's Avatar
 
Join Date: Dec 2017
Location: VA
Posts: 209
Quote:
Originally Posted by W5CI View Post
I have found to get the Exhaust brake light to turn Green
did you push the EB button twice?
__________________
2014 Rockwood Mini Lite 2504s
2016 Ram 3500
str8t six is offline   Reply With Quote
Old 09-21-2019, 08:59 AM   #15
Senior Member
 
Join Date: Jan 2019
Location: Reno, NV
Posts: 833
Quote:
Originally Posted by str8t six View Post
you should. its under vehicle info. cycle thru and see. its near the boost readout.

my 2016 has it.
Thanks, I'll look again.
__________________
2018 Ram 2500 Tradesman, CTD/CC/SB/4X4/Equalizer WDH
2019 Forest River Surveyor Legend 19BHLE
upflying is offline   Reply With Quote
Old 09-21-2019, 10:26 AM   #16
Senior Member
 
Jim34RL's Avatar
 
Join Date: Feb 2015
Location: Oswego il
Posts: 1,776
Depending on year of your truck with the 6.7L Cummins the exhaust brake feature is either a single stage or the two stage version. In 2013.5 when the newer 6.7L Cummins with the DEF use was introduced, the two stage exhaust brake was introduced at this time also.

I tend to drive with my exhaust brake on between 90 and 95% of the time regardless if I am towing or not. If I am towing and in T/H model the shift points and exhaust braking are more aggressive. Also on the single stage exhaust brake feature the braking feature will cut out below 1,100 RPM's. I am not sure in the two stage exhaust brake will cut out at the same RPM range, since I have not experimented with the RPM range on them!

I also use the exhaust brake with extreme cold weather on start up. I will put the truck into high idle when in park and turn on the exhaust brake. Letting this idle for up to 10 mins sometimes. This helps in warming the truck up faster plus the use of a winter front and is not determinate to the engine, other than poorer fuel mileage.
__________________
Jim W.
2016 34RL CC; 2008 Ram Mega Cab 2500HD, 6.7L, 68RFE 6 speed, 4X4, Smarty S67, TDR 123K+miles
Jim34RL is offline   Reply With Quote
Old 09-21-2019, 12:22 PM   #17
Broken Toe
 
Cowracer's Avatar
 
Join Date: Jan 2012
Location: Imperial (St. Louis) MO
Posts: 3,353
How do you put one of these in High Idle?

Tim
__________________
FROG Member MO-0008-571 Since 20124444444444My Project Blog: https://cowracer.blogspot.com/

"Camper" 2016
Rockwood Signature Ultralite 8329ss
"Casper" 2017 Ram 2500 Laramie Diesel
ProPride 3P Hitch - "Yeah. It's worth it."
Cowracer is offline   Reply With Quote
Old 09-21-2019, 01:08 PM   #18
Senior Member
 
Jim34RL's Avatar
 
Join Date: Feb 2015
Location: Oswego il
Posts: 1,776
I am not sure on the newer trucks but I do know this works for trucks from 2007.5 to 2013.5 model diesel trucks. My younger son has a 2013.5 truck and this is the same as my truck a 2008.

With the truck in park and the engine running. Push the cruise button to on, you then push the set button. This will raise the engine RPM's above 1,100. To raise this above 1,100 use the accelerator button to raise the RPM's up to 1,500 in 100 RPM increments. To turn off either step on the brake pedal or push the off button for the cruise control.
I believe this is in the owners manual also.
__________________
Jim W.
2016 34RL CC; 2008 Ram Mega Cab 2500HD, 6.7L, 68RFE 6 speed, 4X4, Smarty S67, TDR 123K+miles
Jim34RL is offline   Reply With Quote
Old 09-21-2019, 02:27 PM   #19
Senior Member
 
mbbutler's Avatar
 
Join Date: Apr 2016
Posts: 262
Travel I-70 between Utah and Colorado and you will love automatic EB mode. Left Ike's tunnel and set it to 50mph. I never touched brake pedal until we hit the traffic lights entering Denver...
mbbutler is offline   Reply With Quote
Old 09-21-2019, 02:29 PM   #20
Senior Member
 
Lins's Avatar
 
Join Date: May 2016
Location: Yellowknife
Posts: 663
Quote:
Originally Posted by Cowracer View Post
How do you put one of these in High Idle?

Tim
Quote:
Originally Posted by Jim34RL View Post
I am not sure on the newer trucks but I do know this works for trucks from 2007.5 to 2013.5 model diesel trucks. My younger son has a 2013.5 truck and this is the same as my truck a 2008.

With the truck in park and the engine running. Push the cruise button to on, you then push the set button. This will raise the engine RPM's above 1,100. To raise this above 1,100 use the accelerator button to raise the RPM's up to 1,500 in 100 RPM increments. To turn off either step on the brake pedal or push the off button for the cruise control.
I believe this is in the owners manual also.
Correct, but they’ll also go to 1000 on their own when the computer feels the need to. I almost never manual high idle mine.
__________________

__________________
2007 Rockwood 2701SS
2017 Ram 2500 Granite Crystal SAP Laramie 6.7L
2014 Triumph Bonneville. NH Togas, TTP Tune 3
1953 GMC 9314
Lins is offline   Reply With Quote
Reply

Tags
diesel

Thread Tools
Display Modes

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



» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 11:46 PM.


×