Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 03-18-2015, 04:14 PM   #57
Registered User
 
Join Date: Feb 2012
Location: Troy Mo
Posts: 1,951
Quote:
Originally Posted by palehorse89 View Post
What sets what up? Does your engine brake hold/maintain your set speed when on cruise control? Capability of downshifting? can you control this? I understand that the transmission will downshift per the Allison shift program. Just wondering how it works as far as maintaining your cruise set point.......Thank you......
I guess I misunderstood your question. I thought you were asking about what happened when I touched the brake.
Yes, the engine brake will hold the speed within its capability while on cruise control.
__________________

__________________
loisjop is offline   Reply With Quote
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!

Old 03-18-2015, 04:20 PM   #58
Senior Member
 
Tha_Rooster's Avatar
 
Join Date: Aug 2008
Location: Georgia
Posts: 4,517
Why would you leave it on, every time you let off to coast you would be the brake on.
__________________

__________________
2007 Fleetwood Revolution LE 40V
Tha_Rooster is offline   Reply With Quote
Old 03-18-2015, 04:45 PM   #59
Registered User
 
Join Date: Feb 2012
Location: Troy Mo
Posts: 1,951
Quote:
Originally Posted by Tha_Rooster View Post
Why would you leave it on, every time you let off to coast you would be the brake on.
Not on mine, it will coast forever unless you touch the brake.
__________________
loisjop is offline   Reply With Quote
Old 03-18-2015, 07:00 PM   #60
Senior Member
 
palehorse89's Avatar


 
Newmar Owners Club
Join Date: Oct 2009
Posts: 7,749
Quote:
Originally Posted by loisjop View Post
I guess I misunderstood your question. I thought you were asking about what happened when I touched the brake.
Yes, the engine brake will hold the speed within its capability while on cruise control.
Thats why I was asking Noel, I have read other posts, where one stated that when using the cruise control, his would not hold the set speed, by the interaction of the engine brake automatically, his speed would go in excess of his set point, then he would have to apply the brakes to slow, but when he hit the brakes to slow, the transmission downshifted to its target gear of 4th, with a result of slowing way to much.........so when using cruise control, he shut off his engine brake and just used his service brakes to maintain/slow, and then hit the set button again. I have been asking this because it seems one can't have it both ways with the factory settings........cruise control and engine braking to maintain speed set point(cruise control), with the default factory downshift setting of the Allison Transmission. The reason for the questions, is that I had my programs changed so my engine brake work with my cruise control and it is wonderful for highway traveling, and am just wondering if anyone with these newer Coach's had made changes or how the factory had them set up, as when I up grade soon????? I will have the factory defaults modified again to suit my driving needs. Looking forward to a 2 stage or 3 stage compression braking system like I had on my trucks Thank you!
__________________
2000 Newmar MADP 4060, 350ISC, Spartan MM, IFS 2011 Jeep JK, M&G Braking, 2014 MTI 27' Hog Hauler, Wireless brake control, 2006Ultra & 1989 Springer
palehorse89 is offline   Reply With Quote
Old 03-18-2015, 07:05 PM   #61
Senior Member
 
Tha_Rooster's Avatar
 
Join Date: Aug 2008
Location: Georgia
Posts: 4,517
Quote:
Originally Posted by loisjop View Post
Not on mine, it will coast forever unless you touch the brake.
With my exhaust brake on as soon as you let off the gas it's cuts on and give it gas it cuts off.
__________________
2007 Fleetwood Revolution LE 40V
Tha_Rooster is offline   Reply With Quote
Old 03-18-2015, 07:10 PM   #62
Senior Member
 
palehorse89's Avatar


 
Newmar Owners Club
Join Date: Oct 2009
Posts: 7,749
Quote:
Originally Posted by Tha_Rooster View Post
With my exhaust brake on as soon as you let off the gas it's cuts on and give it gas it cuts off.
These different methods of activation are all selections/options that are in the programs and are configurable to suit the drivers needs/desires.........
Manufactures vary in their default settings and how things work.
__________________
2000 Newmar MADP 4060, 350ISC, Spartan MM, IFS 2011 Jeep JK, M&G Braking, 2014 MTI 27' Hog Hauler, Wireless brake control, 2006Ultra & 1989 Springer
palehorse89 is offline   Reply With Quote
Old 03-18-2015, 07:35 PM   #63
Registered User
 
Monaco Owners Club
Join Date: Oct 2009
Location: Varies Depending on The Weather
Posts: 8,517
Quote:
Originally Posted by Tha_Rooster View Post

With my exhaust brake on as soon as you let off the gas it's cuts on and give it gas it cuts off.
Not all Exhaust Brakes are created equal nor are they programmed the same.

Even though my EB Switch is on 24/7/365 it will not activate until my foot is completely removed from the fuel pedal.

If I want to coast my foot is resting on the fuel pedal with zero pressure. If I need some fuel I press on the fuel pedal. If I am climbing a steep grade the pedal is to the metal.

I knew this thread would eventually morph into something other than whether people left their Exhaust Brake always on or off.

Dr4Film ----- Richard
__________________
Dr4Film is offline   Reply With Quote
Old 03-18-2015, 07:54 PM   #64
Senior Member
 
Thunderfoot's Avatar
 
Monaco Owners Club
Join Date: Jul 2014
Location: Texas Hill Country
Posts: 474
True 2 stage Jake (engine brake) here on a 500hp Cummins switched on at all times. On my unit, the cruise control performs as normal but Jake will not control speed downhill on cruise. The cruise control releases when either the chassis brake pedal or the dedicated, factory installed Jake pedal is touched or the switch is turned off.

The Jake operates when chassis brake pedal or the Jake pedal is applied. Jake does not apply when throttle is released allowing the coach to "coast". When applied at low speed, the Jake automatically releases at 5-7 mph and the coach will coast until the chassis brakes are applied, or the vehicle stops rolling.

I use the Jake pedal extensively and cannot imagine having a large coach without one. The original brake disc pads (ft & drive axle) and brake shoes (tag axle) have many miles of service remaining. Gotta love these old dinosaurs! Your experience may vary...
__________________
'98 Signature 42' Classic Suite purchased July 2000
Toads: (4 down) Jeep Grand Cherokee, Chevy 2500HD 4x4, or Scout Terra
Trailers: 28' HRC Stacker, 24' Look; contents vary per trip
Thunderfoot is offline   Reply With Quote
Old 03-18-2015, 10:05 PM   #65
Senior Member
 
TonyDi's Avatar


 
Join Date: Feb 2011
Location: Point Pleasant Beach, NJ
Posts: 10,464
I leave mine off unless needed. I don't want the brake coming on everytime I decide I want to coast. Besides it's just a switch that has to be thrown.
__________________
Tony & Ruth........... FMCA#F416727
Newmar Dutch Star 4320, Spartan MM Chassis, Cat C9, Jeep Grand Cherokee Hemi, Blue Ox Aventa LX, and Brake Buddy. TST 507 TPMS
TonyDi is offline   Reply With Quote
Old 03-19-2015, 02:14 PM   #66
Registered User
 
mel s's Avatar
 
Join Date: Mar 2010
Posts: 8,777
Quote:
Originally Posted by Scottybdivin View Post
Many (most) communities around here have signs that say "Use of exhaust brakes prohibited". A couple weeks ago, I saw a LEO parked about 50 feet beyond one of the signs. Has this been an issue for anybody or is the noise level too low to cause a problem.
Scottybdivin
I believe you mean that there are signs prohibiting "Engine Brakes", (aka: "Compression Brakes" or "Jake Brakes").
Since exaust brakes make no "noise difference" it is NOT illegal to use an exhaust brake, like a PacBrake, when/where those signs are posted.
Mel
'96 Safari
__________________
mel s is offline   Reply With Quote
Old 03-19-2015, 02:39 PM   #67
Junior Member
 
JnCMill's Avatar
 
Monaco Owners Club
Join Date: Feb 2015
Location: Full Timers_In a town near you!
Posts: 16
I only use mind when descending a steep hill. Food for thought, if you are towing a vehicle with an auxiliary brake system, it could activate the car brakes based on the inertia change when the exhaust brake engages, thereby causing additional wear to the towed vehicles brakes.
__________________
Jim ~n~ Carol
40' Monaco Knight w/
2015 Tahoe Toad
JnCMill is offline   Reply With Quote
Old 03-19-2015, 03:37 PM   #68
Registered User
 
Monaco Owners Club
Join Date: Oct 2009
Location: Varies Depending on The Weather
Posts: 8,517
Quote:
Originally Posted by JnCMill View Post

I only use mind when descending a steep hill. Food for thought, if you are towing a vehicle with an auxiliary brake system, it could activate the car brakes based on the inertia change when the exhaust brake engages, thereby causing additional wear to the towed vehicles brakes.
That will only happen on any stand-a-lone cheapo systems that are not connected to the coach braking system in any fashion.

I think you will find that most high quality auxiliary braking systems for RV toads are controlled by the coach and are not the cheapo stand-a-lone kind.

My trailer brake controller has an inertia system built into it however my brake controller ONLY works when I use the service brakes not when I use the Exhaust Brake.

Dr4Film ----- Richard
__________________
Dr4Film is offline   Reply With Quote
Old 03-21-2015, 09:24 AM   #69
RVM #74
 
PushedAround's Avatar


 
Tiffin Owners Club
Join Date: Sep 2012
Location: Ambler, PA
Posts: 2,853
Blog Entries: 7
Quote:
Originally Posted by Sky_Boss View Post
I've taken to heart the concern about glazing of brakes if not used on a regular, significant basis. I tend to turn the EB off as I us exit ramps and "exercise" my brakes at those times. I brake as hard as I can without being stupid about it. This seems to have worked well in stopping brake squeal.
Don, I have never, ever heard of this and with 40 years of automotive/racing experience cannot fathom how this can happen. Brakes can glaze from overheating due to over use, but not from "under use". I am curious to know if you have drum brakes or disk.

Sorry for the off-topic.
__________________
Larry & Cheryl Oscar, Louie, Ranger & Henry (our Springers)
PushedAround is offline   Reply With Quote
Old 03-21-2015, 09:39 AM   #70
RV Mutant #14
 
Wayne M's Avatar


 
Winnebago Owners Club
Texas Boomers Club
Freightliner Owners Club
iRV2 No Limits Club
Join Date: Aug 2008
Location: Texas
Posts: 12,202
Quote:
Originally Posted by Scottybdivin
Many (most) communities around here have signs that say "Use of exhaust brakes prohibited". A couple weeks ago, I saw a LEO parked about 50 feet beyond one of the signs. Has this been an issue for anybody or is the noise level too low to cause a problem.

I do understand that those signs are for noise abatement but I really get concerned when the populace noise concerns are more than their safety concerns. I know for a fact that I stop a lot faster when my exhaust break is engaged.

With that said, I leave mine on all the time (exhaust brake) even when I see those signs. I don't think there is anyone out there that can tell whether I had the exhaust brake engaged or if I down shifted. Jake brakes may be a different issue regarding noise, but they still provide a better degree of safety.
__________________

__________________
Wayne MSGT USMC (Ret) & Earlene (CinCHouse)
2015 Winnebago Tour 42QD
RVM14
It is what it is, and then it is what you make of it.
Wayne M is offline   Reply With Quote
Reply

Tags
brake



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
What exhaust Brake Wes Hawkins Trailer Towing and Tow Vehicles Discussion 3 01-11-2015 08:32 PM
2014 Phaeton 40QBH Exhaust Brake Issues rmilewsk Tiffin Motorhomes Owners Forum 13 08-12-2014 07:53 PM
PRXB Exhaust Brake Gedwards1149 Cummins Engines 2 06-20-2014 02:54 PM
88 Fleetwood Limited Parking Brake jmerritt Vintage RV's 1 05-29-2014 09:16 PM
Spare Exhaust Brake (PacBrake) Dutch Star Don Monaco Owner's Forum 2 02-27-2014 10:47 AM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:05 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.