Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Country Coach Owners 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 10-08-2021, 07:41 PM   #1
Senior Member
 
Join Date: Aug 2021
Posts: 161
HELP! stranded on sudden overheat engine

Hey all. We just had an overheat and derate while climbing a grade outside of Bowling Green...

I disconnected both the the danfoss controller harness wires and both and both were pretty cruddy inside and looked like it should be cleaned...

My question is IF the fan controller is disconnected should the fan run constantly?

Our fan turns freely but has. Not turned on at all after cooling down and sitting here at idle 201 degrees

Cat C13

Help appreciated..we are sidelined (but safe) on road right now

Chris H

Edit.....took a looksee at the plugs again...while cleaning and reconnecting the 6 wire Deutsche plug I noticed several wires disconnected/broken (pic attached)..

I am guessing this is our problem?

What say you all....would this FUBAR our fan from working...should I jump the plug and just hardwire to get home?
Attachment 345499
__________________
Chris H
2005 CC Magna #6503
a250gpguy 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 10-08-2021, 08:55 PM   #2
Senior Member
 
BrokeDown's Avatar
 
Join Date: Mar 2016
Location: Fort Myers, FL
Posts: 530
Quote:
Originally Posted by a250gpguy View Post
We had a sudden overheat while climbing a hill just outside of Bowling Green and are stranded but safe.
Good to know you are safe. I do not know your mechanical skill level, but have you checked all of the basics? Fluid levels, belts, a dirt-filled radiator, or something blocking the radiator?
__________________
2008 MADP 4523 w/Hydralift MC Lift - 2016 Jeep Rubicon HR Unlimited - 2012 Harley FLTRU
2022 Momentum 351MS-R (ordered) - 2022 F450 Platinum (ordered)
Fulltime RVing since 4/16/16 - FMCA F477382
BrokeDown is offline   Reply With Quote
Old 10-08-2021, 09:06 PM   #3
Senior Member
 
Join Date: Aug 2021
Posts: 161
Yep...I'm very handy with tools...though not so much with Deutsch connectors

Nothing blocking radiator or condenser coolers etc..correct OTR coolant filled just right...no puking coolant anywhere I can see. Fan turns easily by hand...

A brief overview....Danfoss fan controller...DC's and inspected both plugs...power and speeds

No fan at all with 2 wire power plug DC'd and 7 wire connected while at idle.

Both plugs cruddy....cleaned

On reinspecting found several wires broken off 7 wire fan speed connector...I assume this is my prob...should this fan default to high speed with the coolant temp and air temp sensor wires broke

Wire diagrams attached below...all the wires for sensors were broke off...the PPL and YEL were intact

Have wire diagrams...need advice...jump? Disassemble?
Ch
Attachment 345505Attachment 345506
__________________
Chris H
2005 CC Magna #6503
a250gpguy is offline   Reply With Quote
Old 10-08-2021, 09:34 PM   #4
Senior Member
 
Join Date: Aug 2021
Posts: 161
Here is the associated diagram

ALL of the BLU and WHT wires were broke off (sensors)

The PPL and YEL were intact

ChClick image for larger version

Name:	20211008_210235.jpg
Views:	25
Size:	55.4 KB
ID:	345503Click image for larger version

Name:	20211008_205913.jpg
Views:	22
Size:	59.0 KB
ID:	345504
__________________
Chris H
2005 CC Magna #6503
a250gpguy is offline   Reply With Quote
Old 10-08-2021, 09:53 PM   #5
Community Moderator
 
CountryFit's Avatar


 
Join Date: Sep 2011
Location: Between the Oceans
Posts: 7,524
Blog Entries: 4
Sorry to hear you are sidelined... I understood when you disconnected all wires, the fan should have been running in high. The fact it didn't might indicate you have a stuck solenoid.
__________________
Steven & Polly
2000 Country Coach Intrigue 40' ISC 350
2014 Ford C-Max Energi
CountryFit is offline   Reply With Quote
Old 10-08-2021, 09:53 PM   #6
Senior Member
 
IASM's Avatar
 
Join Date: Nov 2013
Location: Burien ,WA
Posts: 859
On an 05 inspire i had i was having off and on cooling problems and when the fan controller was unplugged the speed defaulted to high. I would get random overheats and was really suspect of the controller. I pulled the thermostats and found one broke .That was on a cat c9. After replacing both thermostats the temp problems were cured and also the fan started working properly. I think if its unplugged, and power removed, the hydraulic directional valve is spring loaded to the open position which is why they run on high when unplugged.
IASM is online now   Reply With Quote
Old 10-08-2021, 10:01 PM   #7
Senior Member
 
Join Date: Aug 2021
Posts: 161
Should the fan run on high 100 percent of the time with the 2 wire plug unplugged? Ie when idling cold

Rewired temp sensors etc..2 wire plug dc'd and fan still not running while idling but cool (below 200deg)

Thanks for the response..keep em coming

Ch
__________________
Chris H
2005 CC Magna #6503
a250gpguy is offline   Reply With Quote
Old 10-08-2021, 10:27 PM   #8
Senior Member
 
Join Date: Aug 2021
Posts: 161
Ok..thank you...any fix for that?
__________________
Chris H
2005 CC Magna #6503
a250gpguy is offline   Reply With Quote
Old 10-08-2021, 11:35 PM   #9
Senior Member
 
dons2346's Avatar
 
Country Coach Owners Club
Join Date: Dec 2010
Posts: 6,553
Quote:
Originally Posted by a250gpguy View Post
Ok..thank you...any fix for that?

Never heard of a bad solenoid but you could give it a few love taps with a hammer while the coach is running to see if things change
__________________
Don
2002 Country Coach Intrigue
dons2346 is online now   Reply With Quote
Old 10-09-2021, 12:10 AM   #10
Senior Member
 
Join Date: Nov 2015
Posts: 554
With the seven wire plug unplugged, the fan should run on high regardless of the air and coolant temperature sensors. You have essentially unplugged the sensors. I've never dealt with your situation. I wonder if it's possible for the controller to fail completely causing the fan to be dead. Perhaps someone that has experienced a failed controller can chime in. There is also the hydraulic fan motor, of course. If you've lost your hydraulic fluid that would do it but you would lose your power steering as well, I believe.
birdhunter is offline   Reply With Quote
Old 10-09-2021, 12:49 AM   #11
Senior Member
 
Join Date: Aug 2021
Posts: 161
Huge and frustrating update. Rebuilt the 6 (7) wire plug completely according to the diagrams and then we lost all power to the transmission controller and coach would not start....

Allison brain wasnt getting power accross the ignition fuse...

So I spent a good few hours testing and replacing suspect fuses in the front run box. I replaced the 7.5 amp coolant temp sensor fuse and bingo..starts right up and we have transmission panel power back and accross Alli IGN fuse...

So next step is to unplug controller power to see if we have fan..but am doubtful since fan wasnt working with 2 prong plug DC'd and sensor wires broke on 6 pin connector
__________________
Chris H
2005 CC Magna #6503
a250gpguy is offline   Reply With Quote
Old 10-09-2021, 12:55 AM   #12
Senior Member
 
Join Date: Aug 2021
Posts: 161
Thanks Don...

Found some issues along the way..long story short after fixing wiring, coach wouldnt start and Alli panel had no power. Ttacked down to a broke coolant temp sensor fuse.

Now onto see if fan starts on high when dc'd

Ch
__________________
Chris H
2005 CC Magna #6503
a250gpguy is offline   Reply With Quote
Old 10-09-2021, 02:04 AM   #13
Senior Member
 
Join Date: Aug 2021
Posts: 161
So unplugged all of that stuff (2 wire, fan controller fuse, and 6 wire connector)

No joy, no fan movement when idling with OTR AC on and 190 deg temps on Silverleaf and Dash....

Any thoughts?

Bad hydraulic solenoid? Anyone ever fixed that while on the road?

Any recommended CAT/Freightliner/Motorcoach shops near Boing Green that could handle this solenoid problem?

Ch
__________________
Chris H
2005 CC Magna #6503
a250gpguy is offline   Reply With Quote
Old 10-09-2021, 02:41 AM   #14
Senior Member
 
Join Date: Aug 2021
Posts: 161
No joy...Dc'd the fan controller fuse, 2 wire power and 6 wire speed/sensor harness.

With coach idling, OTR AC on and confirmed gauge and Silverleaf temps at 190 deg

No fan movement of any kind.

Anyone fix a hydraulic fan solenoid while away from home?

Is there a bypass procedure?

Does anyone know of any reputable Motorcoach/Freightliner/CAT shops in the Bowling Green KY area?

Any help appreciated

Ch
__________________
Chris H
2005 CC Magna #6503
a250gpguy is offline   Reply With Quote
Reply

Tags
engine, heat



Currently Active Users Viewing This Thread: 3 (0 members and 3 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
Cummins ISB 340 Engine Overheating Overheat Fan Clutch Thermostat Cooling etc. f14av8r Cummins Engines 249 11-09-2021 08:28 PM
Sudden Loss of Engine Power Jamie Lynn Country Coach Owners Forum 7 07-22-2018 06:48 PM
Engine Overheat Problems Just Cruising Alpine Coach Owner's Forum 15 06-13-2016 09:35 AM
Meridian 34B sudden engine shutdown CBTraveler Winnebago Industries Owner's Forum 1 01-27-2015 09:33 AM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 11:06 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.