RV Trip Planning Discussions

Go Back   iRV2 Forums > POWER TRAIN GARAGE FORUMS > Navistar MaxxForce Engine Forum
Click Here to Login

Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 04-12-2017, 10:28 AM   #1
Senior Member
 
Dennis_K's Avatar
 
Monaco Owners Club
Join Date: Jun 2007
Location: Lake Havasu City, AZ
Posts: 1,334
Lower Charge Air Cooler hose popped off.

I have been keeping an eye on this hose since the coach was new as it wasn’t installed completely. I have been casually looking for a replacement but never came across one. On My last trip I noticed my boost psi was down along with power. At my stop I did a visual inspection and noticed fluid dripping off that lower hose and assumed I had a leak in the radiator or whatever else would be inside the radiator shroud. I put a drip pad under the leak and finished setting up camp. Over the next couple of days the drip had stopped and the pan had less that an ounce of fluid in it. The fluid was clear light oil, not what I would expect out of the radiator shroud since there is nothing in it that would have oil. Visual inspection of the hose didn’t appear to look any different other that it is now oily. On the short drive home I stopped once to inspect again and this time I could see the part of the hose had popped out from under the clamp.
After I got home and everything cooled off I removed the hose and discovered that the hose had kind of disintegrated under the clamp. I also discovered that the light oil was coming from inside the CAC! This was not engine oil or any oil that I have encountered on this coach. There was a small puddle of the oil in the bottom tank of the CAC and it had to have been there since the coach was manufactured. It can’t go anywhere as the outlet is at the top.
Since this is the hot side of the CAC I sourced a new high temperature silicone hose with a 50psi+ rating. All better now…

You might want to check yours and see if it is installed correctly before it pops off...
Attached Thumbnails
Click image for larger version

Name:	IMG_5035.JPG
Views:	138
Size:	100.3 KB
ID:	158019   Click image for larger version

Name:	IMG_7939.JPG
Views:	152
Size:	173.4 KB
ID:	158020  

Click image for larger version

Name:	IMG_7949.JPG
Views:	142
Size:	135.2 KB
ID:	158021  
__________________

__________________
2012 Monaco Knight 36 PFT
2019 Jeep Grand Cherokee Overland
2005 Jeep Rubicon Unlimited on 2007 16' Car Hauler trailer.
Dennis_K 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 04-12-2017, 10:34 AM   #2
Senior Member
 
Mr_D's Avatar
 
Country Coach Owners Club
Winnebago Owners Club
Solo Rvers Club
iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 35,637
Oil inside the CAC could only be coming from the engine. Bad seal in the turbo?
__________________

__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
Mr_D is offline   Reply With Quote
Old 04-12-2017, 11:39 AM   #3
Member
 
Join Date: May 2016
Location: Fort Worth, TX
Posts: 41
Don't think engine oil would be "light colored"? May be residual from initial installation at the factory?
Bad turbo seals usually mean lots of smoke from the exhaust pipe.
Hopefully all is well now that you replaced the hose.
__________________
Steve & Sandy
2003 Foretravel 4220, Cummins 450hp ISM
2016 F150 SCREW 4x4, 2013 Crusader 295 RST
Stevie3508 is offline   Reply With Quote
Old 04-12-2017, 06:20 PM   #4
Senior Member
 
Traps90's Avatar
 
Monaco Owners Club
Join Date: Sep 2010
Location: Alberta
Posts: 1,388
Thanks for the update Dennis, it's always a great help for the rest to maybe check out for a potential problem.
If you don't mind can you let us know your milage, as it may be helpful down the road for us.
__________________
Trap, Jan and the Pup
2013 Monaco Diplomat 43dft
2010 Black Jeep Liberty
Traps90 is offline   Reply With Quote
Old 04-13-2017, 11:37 AM   #5
Senior Member
 
Dennis_K's Avatar
 
Monaco Owners Club
Join Date: Jun 2007
Location: Lake Havasu City, AZ
Posts: 1,334
Quote:
Originally Posted by Traps90 View Post
Thanks for the update Dennis, it's always a great help for the rest to maybe check out for a potential problem.
If you don't mind can you let us know your milage, as it may be helpful down the road for us.
The oil is defiantly not engine oil, if anything it looks like clear light weight hydraulic oil. The coach has 36,000 miles on it. With the new hose the boost pressure is back so hopefully all is good again.

A simple check of the hose is to make sure there is hose showing on both sides of each clamp and the clamps are not loose.
__________________
2012 Monaco Knight 36 PFT
2019 Jeep Grand Cherokee Overland
2005 Jeep Rubicon Unlimited on 2007 16' Car Hauler trailer.
Dennis_K is offline   Reply With Quote
Old 04-13-2017, 11:45 AM   #6
Senior Member
 
Skip426's Avatar


 
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 17,684
You could remove the turbo exit hose and check there for any oil to confirm it's not a turbo shaft seal.
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Old 08-21-2017, 03:56 PM   #7
Member
 
RPrince's Avatar
 
Join Date: Dec 2014
Location: Marble Falls, Texas
Posts: 99
Dennis, can you provide more info on the silicone hose replacement? Part number, supplier, etc.
__________________
Randy and Laura
2012 Monaco Knight 36PFT
2016 Jeep Wrangler Rubicon
RPrince is offline   Reply With Quote
Old 08-21-2017, 04:50 PM   #8
Senior Member
 
Dennis_K's Avatar
 
Monaco Owners Club
Join Date: Jun 2007
Location: Lake Havasu City, AZ
Posts: 1,334
I got it from Amazon.com. I chose it because of it's high pressure and temperature rating. I cut the length to suit. I have over 7000 miles on it since the installation.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
__________________
2012 Monaco Knight 36 PFT
2019 Jeep Grand Cherokee Overland
2005 Jeep Rubicon Unlimited on 2007 16' Car Hauler trailer.
Dennis_K is offline   Reply With Quote
Old 08-22-2017, 09:30 AM   #9
Member
 
RPrince's Avatar
 
Join Date: Dec 2014
Location: Marble Falls, Texas
Posts: 99
Thanks for the info, Dennis. Mine doesn't look as bad as yours did, but I'm going to replace it anyway.

Randy
__________________

__________________
Randy and Laura
2012 Monaco Knight 36PFT
2016 Jeep Wrangler Rubicon
RPrince is offline   Reply With Quote
Reply



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
SMI AF1 air hose popped off while driving Barmats Toads and Motorhome Related Towing 12 07-28-2016 09:22 AM
Replacing Charge Air Cooler/Trans Cooler Assembly mharner Class A Motorhome Discussions 3 03-16-2012 07:20 AM
Charge Air Cooler cleaning quikduk Spartan Motorhome Chassis Forum 1 09-17-2007 09:44 AM
Help! Charge Air Cooler 2racer Alpine Coach Owner's Forum 6 12-31-2006 07:35 PM

» Featured Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:13 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.