|
|
12-05-2018, 08:26 AM
|
#1
|
Senior Member
Fleetwood Owners Club American Coach Owners Club
Join Date: May 2015
Posts: 245
|
Exhaust Brake
What year did Newmar start adding a dash indicator to show when the exhaust brake is activated? I think I have one.
I don’t think mine is functioning properly.
Brake lights don’t activate.
Transmission selects 2 but I feel it’s just that no help from the exhaust brake
Solenoids? Fuses?
__________________
2004 Travel Supreme DS04
2014 Jeep Grand Cherokee Summit
2002 Newmar DSDP 4095 Cummins ISC 350
|
|
|
|
Join the #1 RV Forum Today - It's Totally Free!
iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!
You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!
|
12-05-2018, 08:27 AM
|
#2
|
Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
|
We had an '02 DSDP 4090. When on and activated the transmission "preselects" 2nd gear but engine speed would be too high if it actually went into 2nd. It will aggressively downshift when possible as you slow. They really don't do much above 65 mph.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
|
|
|
12-05-2018, 08:46 AM
|
#3
|
Senior Member
Monaco Owners Club
Join Date: Oct 2014
Location: Rigby, Idaho
Posts: 3,902
|
And the brake itself, doesn't do much. Here's a simple experiment: Manuall downshift, then cycle the exhaust brake. You might feel a small tug as it closes. You can also build a telltale with a piece of thread and some fence wire. Twist the fence wire onto the EB the attach one end of the thread to the wire and the other end to something immovable. I ran mine into the bedroom under the engine hatch. When activated, the EB will pull and break the thread. The wire is there to reduce the heat getting to the thread.
__________________
Cheers,
TonyMac
2006 Monaco Safari Cheetah 40PMT
|
|
|
12-05-2018, 10:45 AM
|
#4
|
Senior Member
Fleetwood Owners Club American Coach Owners Club
Join Date: May 2015
Posts: 245
|
Mr D did your 02 have a dash indicator?
__________________
2004 Travel Supreme DS04
2014 Jeep Grand Cherokee Summit
2002 Newmar DSDP 4095 Cummins ISC 350
|
|
|
12-05-2018, 05:16 PM
|
#5
|
Senior Member
Join Date: Sep 2016
Location: Sarasota, FL
Posts: 5,228
|
The best way to see if it is working is to have your wife or a buddy open the "hood" in the BR and, using walkie talkies, have them watch the Exhaust brake (EB) while you are moving. The EB should start working above 10mph even if you have the switch on (something to do with transmission lock up or out).
So have someone watch as you take it up to 45 or so and then turn the EB switch on (tell them via walkie talkie what you're doing at each step) while your foot is still on the pedal - there should be no change. Take your foot off the pedal and then the EB should activate (along with transmission pointing to a lower gear (mine is 2nd)).
I had my EB "repaired" and I wasn't sure that it was actually working - the tranny was doing it's thing but wasn't sure that the EB was doing anything, because I can't be in two places at one time. It took me a year to figure out I needed someone else back there and got a buddy to ride back there with flashlight - we found the EB was not activating when it should have been and was activating when it shouldn't have been.
That tells me that the shop didn't have someone back there during their test drive and I'm working with them now.
Hope this helps.
__________________
Rick and Larrie Dee
1997 40' Newmar London Aire DP CTA 8.3 (Mechanical) 325 Spartan MM
Bringing her back to her glory.
'08 Jeep GC Overland.
|
|
|
12-05-2018, 05:27 PM
|
#6
|
Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
|
Quote:
Originally Posted by USMC_1345
Mr D did your 02 have a dash indicator?
|
I've been trying to remember. I used the VMSpc on a small netbook so depended on it's readout.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
|
|
|
12-05-2018, 07:31 PM
|
#7
|
Senior Member
Newmar Owners Club Spartan Chassis
Join Date: Jun 2013
Location: Apple Valley CA
Posts: 1,069
|
If it's working you will know. I rarely use my brakes. I have the ScanGage D and one of the parameters I have programmed is the exhaust brake percentage. Depending on my speed it will show anywhere from 60% to 100%.
__________________
[SIGPIC][/SIGPIC]
Craig & Carolyn Roberts Apple Valley, CA
Toad: 2017 GMC Canyon 4X4 Crewcab
|
|
|
12-05-2018, 08:41 PM
|
#8
|
Senior Member
Join Date: Jan 2017
Posts: 463
|
Our 06 MADP had an indicator. Just watch your tack that will show you the engine brake is working
__________________
2017 Newmar Dutchstar 4369
Spartan - ISL 450 Cummins
2016 Jeep Grand Cherokee tow
|
|
|
12-07-2018, 07:59 AM
|
#9
|
Senior Member
Monaco Owners Club
Join Date: Oct 2014
Location: Rigby, Idaho
Posts: 3,902
|
Quote:
Originally Posted by Breezy2006
Our 06 MADP had an indicator. Just watch your tack that will show you the engine brake is working
|
The tach will show the transmission downshift, but I don’t see how it will show the EB valve closing.
__________________
Cheers,
TonyMac
2006 Monaco Safari Cheetah 40PMT
|
|
|
12-07-2018, 06:00 PM
|
#10
|
Senior Member
Join Date: Sep 2010
Posts: 141
|
Quote:
Originally Posted by Mr_D
We had an '02 DSDP 4090. When on and activated the transmission "preselects" 2nd gear but engine speed would be too high if it actually went into 2nd. It will aggressively downshift when possible as you slow. They really don't do much above 65 mph.
|
My 01 does the same
|
|
|
12-12-2018, 09:19 AM
|
#11
|
Senior Member
Newmar Owners Club
Join Date: Apr 2015
Location: State College, PA
Posts: 842
|
Our Spartan dash actually shows AUXILARY BRAKE on the display. Definitely working since going down large hill I have switched between LOW, MED and instantly notice a difference. Kind of thinking that if on HIGH probably have to give some gas to get the coach to move
Of course I only have 2900 miles driving diesel.
__________________
Bob and Terri
2019 Ventana 4037 Spartan, 2018 JL Wrangler Sahara
State College, PA
[SIGPIC][/SIGPIC]
|
|
|
12-12-2018, 08:14 PM
|
#12
|
Senior Member
Newmar Owners Club Spartan Chassis
Join Date: Mar 2012
Posts: 871
|
I use my engine brake all the time when going down inclines, and the little dash light comes on when it activates. You also feel it downshift. If yours downshifts on its own when going down a hill, it is working.
However, as a previous post said, you need your speed to be under 65 (or so) for it to activate. Over that speed it doesn't do much if anything.
__________________
Craig and Susan
Morgan Hill, CA 2007 Newmar Kountry Star 3910 towing a 1998 Ford Explorer. RVing since gas was 58 cents a gallon. Amateur Radio Operator (W6ADV) since 1962.
|
|
|
12-13-2018, 07:25 AM
|
#13
|
Member
Newmar Owners Club Spartan Chassis
Join Date: Jun 2016
Posts: 87
|
My 2003 MADP lights the AUX BRAKE light on the dash and the rear brake lights when the exhaust brake closes. It does not light when the transmission downshifts, only when the exhaust brake closes.
__________________
Bill and Brenda
2003 Newmar Mountain Aire 4097
|
|
|
12-13-2018, 07:54 AM
|
#14
|
Senior Member
Newmar Owners Club
Join Date: Dec 2011
Posts: 723
|
Usmc, not sure when Newmar added the light but my coach is a 2002 and it has one. I believe the exhaust brake actuates with air and controlled by dc powered valve.
__________________
2002 KSDP 3669/Freightliner XC CHASSIS/Cummins 5.9 ISB 300hp
Joplin, MO
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
Thread Tools |
Search this Thread |
|
|
Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|