|
04-21-2010, 09:50 PM
|
#1
|
Junior Member
Monaco Owners Club Tiffin Owners Club
Join Date: Apr 2010
Posts: 16
|
Dynasty engine brake problem - need help!
The engine brake on my '04 Dynasty (ISL400) won't activate and I'm having problems getting it fixed. Worked fine last August but when when we left WI for 2 months in Feb. and March it would not activate. I took it to Beaudry's RV (a Monaco dealer) in Tucson and after I left it for a day they said they couldn't scope the Cummins. Later spent two days at Rocky Mountain Cummins in Phoenix and they said there were no problem codes with the engine and I should bring it to a Monaco dealer. They did recomend Massey (?) Truck in Phoenix but we were tired of sitting around repair centers or being homeless for the day(s).
We have the high/low switch on the side panel (which tests OK) and a foot switch. I tested the foot switch and it appeared to be working. I called Monaco and they also recomended Massey who I called. A very knowledgeable Tom ? said it most likely (90%) was the foot switch and they will test good with a VOM meter but not work under load. Ordered a new switch from Monaco and it was defective (2 of the 6 microswitch contacts are open), not only did the brake not work, but the cruise would not work untill switch was unplugged. Now waiting for new switch to try.
Has anyone had engine brake problems and what was the cure? There is a relay/cuircuit boad in the front run panel but Massey said they never had to replace that.
|
|
|
|
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!
|
04-22-2010, 05:54 PM
|
#2
|
Senior Member
Monaco Owners Club
Join Date: Sep 2007
Location: Scottsdale, AZ
Posts: 2,321
|
I had to replace that foot switch twice on my last motorhome. I bought the first on from Monaco and the second from Graingers.
It's no fun when the switch dies.
__________________
Harry
2008 Monaco Camelot 40' PDQ
|
|
|
04-22-2010, 10:16 PM
|
#3
|
Senior Member
Monaco Owners Club
Join Date: Oct 2009
Location: On the road
Posts: 2,126
|
Happy I don't have the foot switch. Have driven one quiet a bit, and engagement always seems to be a question mark. Maybe you can get it changed to just the dash switch activation??
Good luck, sounds frustrating.
__________________
Happy Trails,
06 Dynasty Countess III ISL//3060
07 Hummer H3
|
|
|
04-23-2010, 12:17 AM
|
#4
|
Senior Member
Monaco Owners Club
Join Date: Sep 2007
Location: Scottsdale, AZ
Posts: 2,321
|
My current coach came with the dash switch. I also installed a foot switch so I can engage the e brake without having it downshift. Sometimes I just want to slow a little bit. Or, on a downhill I can select the appropriate gear, and then use the pedal as needed to turn it on/off to maintain the desired speed.
__________________
Harry
2008 Monaco Camelot 40' PDQ
|
|
|
04-23-2010, 06:12 AM
|
#5
|
Senior Member
Join Date: Apr 2008
Location: Freeport, ME
Posts: 4,707
|
A foot switch is so much better than a dash switch. It is so much more logical to push a foot switch to slow down that have to move and use a dash switch.
__________________
Mike Canter
"Gunner" USN Retired, Airdale
2004 Monaco Signature 44' Conquest. Detroit 60
|
|
|
04-23-2010, 08:48 AM
|
#6
|
Senior Member
Join Date: Dec 2007
Posts: 189
|
Have had foot switch on two coaches. No problems. Would not do without.
|
|
|
04-23-2010, 06:50 PM
|
#7
|
Senior Member
Monaco Owners Club
Join Date: Sep 2003
Location: Quitman MS
Posts: 2,967
|
I think what Gumby is talking about is a Two-Stage Jacobs Engine Brake and not a Pac Brake and I have no Idea what the fix is.
__________________
Walt & Will
2000 Dynasty
2017 Ram Big Horn Crew C 4X4 w/ M&G
|
|
|
04-24-2010, 07:46 PM
|
#8
|
Junior Member
Monaco Owners Club Tiffin Owners Club
Join Date: Apr 2010
Posts: 16
|
Quote:
Originally Posted by walt2137
I think what Gumby is talking about is a Two-Stage Jacobs Engine Brake and not a Pac Brake and I have no Idea what the fix is.
|
You're right Walt. Right now I don't care if I have a switch on the armrest or foot pedal, I just want it to work. I was asking what problems and the fix others have had i.e. relays, cuircuit board, etc.
Thanks
|
|
|
04-25-2010, 09:02 AM
|
#9
|
Senior Member
Monaco Owners Club
Join Date: Oct 2009
Location: On the road
Posts: 2,126
|
I assume...you know where that gets you, that have checked the fuse and relay??? Front Run Box (FRB) outside under driver seat, board lower middle right side, has seven relays and three fuses in the middle of the relay grouping. The middle 15 amp fuse should be marked ENG Brake. This is on my 06 ISL with two stage Jake, yours may be a little different.
Good Luck
__________________
Happy Trails,
06 Dynasty Countess III ISL//3060
07 Hummer H3
|
|
|
05-22-2010, 01:30 PM
|
#10
|
Junior Member
Monaco Owners Club Tiffin Owners Club
Join Date: Apr 2010
Posts: 16
|
Problem Solved
The problem with the engine brake turned out to be the foot switch as Tom at Massey's Diesel in Phoenix had told me on the phone. There are 4 wires that my switch connects to, a common, (1) that is normally closed which allows the cruise to activate, and (2) that are normally open which when closed activate the engine brake. Even though the foot brake microswitch tested OK with a VOM it didn't work under load. I hooked up a 2 pole 2 posistion switch (on - off -on) switch and the cruise works in one on posistion and engine brake in the other on posistion. I ordered the micro switch from an electronics firm, 2 for $35.00. Monaco wanted $160.00 for the whole switch.
Massey's Diesel and RV told me over the phone what was wrong for no charge what Beaudry RV in Tuscon, and Rocky Mountain Cummins in Phoenix couldn't find in 3 days between them.
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
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 |
|
|
|
|
|
|
|
|
|
|
|
|
|