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08-19-2015, 02:43 PM
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#1
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Senior Member
Join Date: Jun 2015
Location: Florence, AL
Posts: 201
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Exhaust Brake use question
Hi, my 2003 Endeavor has the exhaust brake (I assume all usually do). My question is...Do most everyone leave it engaged all of the time no matter load or driving conditions or load? thx
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2020 F350 with 7.3 Godzilla
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08-19-2015, 02:49 PM
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#2
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Senior Member
Monaco Owners Club
Join Date: Apr 2014
Location: Full timing in the West
Posts: 157
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Better than 90% of the time I use it.
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Mike & Robin
2002 Monaco Diplomat 40PBT ISC 330
Full timing in the West. 
With Doberman (Bailey) & Shitzu (Cooper)
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08-19-2015, 02:51 PM
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#3
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Senior Member
Winnebago Owners Club
Join Date: Mar 2014
Posts: 14,891
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Awfully big question as there are many scenarios to consider.
Basic answer is no I do not leave it engaged all of the time.
Mostly use it when going down hills where the coach will accelerate.
Definitely turned off in wet or icy conditions.
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Gordon and Janet
Tour 42QD/InTech Stacker
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08-19-2015, 02:52 PM
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#4
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Registered User
Join Date: Mar 2010
Posts: 8,777
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Quote:
Originally Posted by grthigpen
Hi, my 2003 Endeavor has the exhaust brake (I assume all usually do). My question is...Do most everyone leave it engaged all of the time no matter load or driving conditions or load? thx
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grthigpen
See: http://pacbrake.com/exhaust-brakes-h...do-they-bring/
And: Exhaust Brake Use
Mel
'96 Safari
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08-19-2015, 02:55 PM
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#5
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Senior Member
Retired Fire Service RVer's
Join Date: Jul 2015
Posts: 107
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I believe it will only engage at 1000 rpm and above...with that said I use mine to save my brakes...which is alot...I agree with 90%.
Also is great, I have heard, for downhill usage....I will learn first hand soon enough....
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08-19-2015, 02:57 PM
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#6
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Senior Member
Join Date: Dec 2014
Posts: 583
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Our exhaust brake is activated by a separate pedal. I use it nearly any time I slow or stop and I am initially going more than 15 MPH or so. The coach has about 96,000 miles, and has plenty of the original brakes.
On steep downhills, I manually shift the transmission down to where application of the exhaust brake alone will keep me from accelerating.
Matt B
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Matt B
1998 Foretravel U-320
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08-19-2015, 03:03 PM
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#7
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Senior Member
Join Date: Jun 2015
Location: Florence, AL
Posts: 201
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Thank you for the input will put it to use
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2020 F350 with 7.3 Godzilla
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08-19-2015, 03:34 PM
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#8
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Senior Member/RVM #90
Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 54,780
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I keep mine on all the time. Of course I would turn it off in icy conditions!
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Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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08-19-2015, 03:41 PM
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#9
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Senior Member
Monaco Owners Club
Join Date: May 2012
Location: DFW, Tex-US
Posts: 6,196
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I too LOVE the idea of saving those expensive brakes that I have NO warranty on versus the engine that has a 5 yr 100k mile warranty...
And the fact that it may be the difference between me hitting that joker that cut me off and not ?!? It's ON ! 
Now, in rare circumstances I will turn it off, like when NO ONE is around me and I am on secondary roads that I am throttling on and off, sometimes I will to keep it from slowing down my momentum when I don't want it to.
And being in 106 degree TexUS, what's ICE ?
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'11 Monaco Diplomat 43DFT RR10R pushed by a '14 Jeep Wrangler JKU. History.. 5'ers: 13 Redwood 38gk(junk!), 11 MVP Destiny, Open Range TT, Winn LeSharo, C's, popups, vans, tents...
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08-19-2015, 03:54 PM
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#10
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Senior Member
Monaco Owners Club
Join Date: Jun 2014
Posts: 14,600
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I only activate mine when I am trying to control descent down hills or slowing for curves, traffic, exiting the highway etc. I also try to save my brakes.
By accident I did leave it on once and couldn't figure out the RV was trying buck a little. Every time I took my foot off the accelerator the brake would activate. Base on this I can only imagine what kind of effect the brake has on fuel mileage.
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Jim J
2002 Monaco Windsor 38 PKD Cummins ISC 350 8.3L
2005 Jeep Grand Cherokee w/5.7 Hemi
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08-19-2015, 03:56 PM
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#11
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Senior Member
Join Date: May 2014
Location: Henderson, Nevada
Posts: 1,224
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Never turn mine off
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2005 Newmar DS 4023, Spartan Chassis, ISL 370 Cumapart, 2008 Jeep Rubicon 4dr, 2015 Kia Soul, 1969 Italian & 2004 Akita
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08-19-2015, 03:58 PM
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#12
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Senior Member
Join Date: May 2014
Location: Henderson, Nevada
Posts: 1,224
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Quote:
Originally Posted by jacwjames
I only activate mine when I am trying to control descent down hills or slowing for curves, traffic, exiting the highway etc. I also try to save my brakes.
By accident I did leave it on once and couldn't figure out the RV was trying buck a little. Every time I took my foot off the accelerator the brake would activate. Base on this I can only imagine what kind of effect the brake has on fuel mileage.
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Worried about Fuel mileage.....SMH 
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2005 Newmar DS 4023, Spartan Chassis, ISL 370 Cumapart, 2008 Jeep Rubicon 4dr, 2015 Kia Soul, 1969 Italian & 2004 Akita
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08-19-2015, 04:16 PM
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#13
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Senior Member
Monaco Owners Club
Join Date: Mar 2014
Posts: 916
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Do you have an exhaust brake or a Jake Brake? The reason I ask is that my Beaver, is a Monaco product and it has a Jake. I know different engines and such. A Jake will not cause poorer fuel mileage and I'm not aware of any wear issues while using it. I keep it on 90% of the time. It saves brakes and starts me slowing as soon as I take my foot off the accel.
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Jerry, "EWC (SW)" USN Retired
2003 Beaver Patriot Thunder 505 HP C-12 1550 TQ
Allison 4000MH Ram 4X4 towed
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08-19-2015, 04:24 PM
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#14
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Senior Member
Winnebago Owners Club
Join Date: Mar 2014
Posts: 14,891
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I have tried leaving in on all of the time. We have an engine brake for clarification.
There was no effect on flat land.
If there were small hills where the accelerator was still depressed to maintain speed there was no effect.
If there was moderate hills that you would come off the accelerator to control speed the engine brake would come on, the transmission would shift down and the coach would noticeably slow. Since this was not the desired effect having the engine brake on was unnecessary.
If there were large hills that caused the coach to accelerate well past comfortable levels the engine brake would work as advertised.
Most of the roads we travel will have occasional moderate hills.
Many towns have signs posted "Use of engine retarder brakes prohibited". Some are starting to post signs saying "Use of un-muffled engine retarder brakes prohibited". The signs are mutually exclusive and I would turn the brakes off if the first sign were encountered.
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Gordon and Janet
Tour 42QD/InTech Stacker
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