RV Trip Planning Discussions

Go Back   iRV2 Forums > POWER TRAIN GARAGE FORUMS > Cummins Engines
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 10-19-2015, 09:32 AM   #43
Junior Member
 
Join Date: Jan 2013
Posts: 8
The fan clutch is definitely a Freightliner part. The manufacturer of the clutch is Horton, but when the motor home manufacturer receives the chassis from Freightliner, that fan and clutch are there. When I had mine replaced at the Cummins shop in Calgary, AB (due to my ignorance about what company was responsible for it), they had to order the replacement from Freightliner.

Additionally, when we were going through trying to find a solution when the clutch we replaced in Canada failed again in Arizona, we stopped in to a Freightliner shop in AZ and talked to the manager of the Custom Chassis (RV Specialty) shop, and he listened to our explanation and immediately replied that it was our fan clutch, that they would have to replace it, and how much it would cost. (Needless to say, given our experience we beat feet out of there.)
__________________

Starxd 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 10-19-2015, 10:03 PM   #44
Junior Member
 
Join Date: Sep 2015
Posts: 12
Fan clutch

Quote:
Originally Posted by Silver007 View Post
Is the fan clutch a Freightliner or Cummins part? I ask because when I go on Access Freightliner I cannot find the part. Maybe class action needs to be taken against Cummins? I don't know but would like to.
I'm not sure FL or Cummings. My repair paperwork is in the RV. It may have a part # for reference. I'm taking it out this weekend & will look & let you know. FL service bullitan 3737 says to me they sure know there's a problem.
__________________

Slateous is offline   Reply With Quote
Old 10-20-2015, 05:12 AM   #45
Senior Member
 
KarenS144's Avatar
 
Join Date: Mar 2014
Location: Paoli, IN
Posts: 1,078
Freightliner. We had ours replaced last fall. It was replaced by FL under warranty.
__________________
Karen & Gary Glamping is not for the faint of heart!
traveling in a 2011 Ventana 3433!
Looking for our next adventure!
KarenS144 is offline   Reply With Quote
Old 12-18-2015, 08:07 PM   #46
Junior Member
 
Join Date: Feb 2013
Location: Clearwater, Fl
Posts: 23
Thank You Randy!

We were just leaving Savannah heading to Jacksonville when the loud "Over Heating" buzzer sounded. Pulled off to the side of the interstate and walked around to the back of the coach expecting to see anti-freeze all over my toad... no anti-freeze and no air flow from the radiator. I shut the motor off for a minute, then re-started, temperature gauge quickly moves back into normal range.

We made it to Jacksonville and returned home (380 miles) without a problem. So my question to those of you who have had the Clutch Fan intermittent failure. Will my local Freightliner Service Center be able to diagnose the problem using SS3737 if it has only failed once? Do I need to drive some more to increase the rate of failures? My coach is an 2008, ISB 6.7, with 39k on the clock.
__________________
Steve & Margo
2008 Fleetwood Expedition 36D
pushed by a 2015 Ford Focus
paddler54 is offline   Reply With Quote
Old 12-19-2015, 07:36 AM   #47
Registered User
 
Join Date: Jul 2015
Posts: 9
Hey Paddler 54;

The problem with intermittent failures is that you don't decide when they fail. The fan clutch is a fairly complicated sub-system. Randy is right, it is a Freightliner part and in my opinion, should be recalled. I went to the NTSA site and complained about it and asked them to consider a recall; I encourage everyone reading this to do the same.

I found that it's easy, for me, to determine if the fan is operating: standing at the back of my coach, when the fan is on it blows a massive amount of air through the radiator, you can hear it and feel it. If the engine has been on for a while and you can't sense the noise and air, it's probably acting up. My fan went out at about 15K and I had the local Freightliner dealer replace it. I'm headed to Orlando next month and I hope the new fan operates as advertised. If not, Freightliner and I will become a lot more familiar with each other.
Paladin76063 is offline   Reply With Quote
Old 12-19-2015, 11:09 AM   #48
Senior Member
 
hawgguy's Avatar
 
Join Date: Jun 2011
Location: College Station, Texas
Posts: 2,841
Quote:
Originally Posted by paddler54 View Post
So my question to those of you who have had the Clutch Fan intermittent failure. Will my local Freightliner Service Center be able to diagnose the problem using SS3737 if it has only failed once?

This is common enough that if you describe the problem as above they should be able to diagnose & fix it. I wouldn't wait for it to completely fail.
__________________
Bob in College Station, TX
2015 Entegra Cornerstone 45K
2012 Jeep Rubicon, 1994 FXLR
hawgguy is offline   Reply With Quote
Old 12-19-2015, 02:51 PM   #49
Junior Member
 
Join Date: Sep 2015
Posts: 12
Fan clutch

Quote:
Originally Posted by paddler54 View Post
We were just leaving Savannah heading to Jacksonville when the loud "Over Heating" buzzer sounded. Pulled off to the side of the interstate and walked around to the back of the coach expecting to see anti-freeze all over my toad... no anti-freeze and no air flow from the radiator. I shut the motor off for a minute, then re-started, temperature gauge quickly moves back into normal range.

We made it to Jacksonville and returned home (380 miles) without a problem. So my question to those of you who have had the Clutch Fan intermittent failure. Will my local Freightliner Service Center be able to diagnose the problem using SS3737 if it has only failed once? Do I need to drive some more to increase the rate of failures? My coach is an 2008, ISB 6.7, with 39k on the clock.
Mine failed over 20 times before I figured it out. Freightliner diagnosis could not find the problem. They put something called a guard dog on it. Overheated on test drive and blew the water pump too! Just tell them to replace the darn thing.
Slateous is offline   Reply With Quote
Old 12-19-2015, 03:11 PM   #50
Member
 
Join Date: Nov 2015
Posts: 57
Guys
I hear what you are writing about and agree but with caveat.
Make sure the radiator/condenser/ heat exchangers are not plugged up with external dirt or bugs and such things as grasshopper guts.

In short it can't cool if it can reject heat!

Having run a fleet of 1500 buses in Iraq in another life where it really gets hot its the first remedial repair call; clean it.
Dawn dish liquid works great!
Just spray on both sides let it soak then re-apply, then use a garden hose to loosen it (dirt) without bending the fins.
Seasons greetings
Dennis
lindenengine is offline   Reply With Quote
Old 12-20-2015, 06:31 AM   #51
Senior Member
 
f14av8r's Avatar
 
Winnebago Owners Club
Freightliner Owners Club
Join Date: Jul 2010
Location: Tampa Area (sometimes!)
Posts: 464
Don't Wait

Hi Everyone,
No need to wait for the fan clutch to fail completely. If you have even one overheating event such as those described here, have your dealer execute the troubleshooting procedure in Freightliner Service Bulletin 3737. It should identify the problem even on a "weak" fan clutch that hasn't given up completely. That's what it's designed to do since, as you've probably discovered, this intermittent problem is VERY difficult to catch in it's failure mode.
Best regards,
Randy
__________________
Randy and Tina & pups: Cinnamon & Cookie (RIP Coco )
2020 Tiffin Wayfarer RW
Mercedes Benz Sprinter Chassis
f14av8r is offline   Reply With Quote
Old 12-21-2015, 11:47 PM   #52
Junior Member
 
Join Date: Jan 2013
Posts: 8
I can identify with everyone who has posted their experiences with this fan, and I still stand by my decision nearly a year ago now to replace the failure-prone electronic hub fan with a direct drive Super Fan. I have logged thousands of miles since and have had no decrease, and in most cases a modest increase in fuel economy due to the markedly reduced drag on the engine. And I still can feel a slight increase in applied power to the wheels due to the lesser power demand of the lighter fan. So my advise - at the first sign of trouble with this worthless fan, cut to the chase and replace it with a simple direct drive fan. (Just remember to leave the fan ECM plugged into the fan harness to fool the main ECM into thinking the old fan is still there, or you'll get a "Check Engine" light.
Starxd is offline   Reply With Quote
Old 12-24-2015, 05:04 AM   #53
Junior Member
 
Join Date: Feb 2013
Location: Clearwater, Fl
Posts: 23
Yesterday, I drove over to my local Freightliner service center and scheduled a service appointment. While there I mentioned the Freightliner Service Solution 3737 and got blank stares. One gentleman said he'd look it up but later said he couldn't find it. Anyone have a copy of this bulletin? I'm in need of that warm fuzzy feeling!
__________________
Steve & Margo
2008 Fleetwood Expedition 36D
pushed by a 2015 Ford Focus
paddler54 is offline   Reply With Quote
Old 12-25-2015, 12:25 AM   #54
Junior Member
 
Join Date: Jan 2013
Posts: 8
Service Bulletin 3737

All I can say is, if Service Bulletin 3737 pertains to replacing one trot line weight of a viscous drive electronic fan with another of the same make and model, I would run, not walk to the nearest trustworthy mechanic who would install an aftermarket direct drive fan in its place. Take it from someone who did have the stock fan replaced with the same model, only to have it fail again less than 2 years later
Starxd is offline   Reply With Quote
Old 12-25-2015, 12:27 AM   #55
Junior Member
 
Join Date: Sep 2015
Posts: 12
Fan clutch

Paddler,
I don't think the bullitan is available to the public. My FL service group told me to call the customer service # to seek financial support. They knew all about 3737 & eventually picked up 50% of the cost even though I was out of warranty. FL corporate does require them to go through a lot of checks & diagnostics before they will authorize the new fan clutch which increases the labor costs. My own humble opinion is it's cheaper to skip the process and just have them replace the clutch. My quote was $800. After 3737 it was no where near that. Hang in there and good luck.
Slateous is offline   Reply With Quote
Old 12-25-2015, 05:58 AM   #56
Junior Member
 
Join Date: Feb 2013
Location: Clearwater, Fl
Posts: 23
Quote:
Originally Posted by Starxd View Post
All I can say is, if Service Bulletin 3737 pertains to replacing one trot line weight of a viscous drive electronic fan with another of the same make and model, I would run, not walk to the nearest trustworthy mechanic who would install an aftermarket direct drive fan in its place. Take it from someone who did have the stock fan replaced with the same model, only to have it fail again less than 2 years later
Thanks for your recommendation. I have an extended warranty on my rig so I will have to do a factory replacement. I was planning to do a belts, hoses, radiator, fuel filters and transmission service in February. So having the insurance pick up a portion of the tear down cost is icing on the cake.
__________________

__________________
Steve & Margo
2008 Fleetwood Expedition 36D
pushed by a 2015 Ford Focus
paddler54 is offline   Reply With Quote
Reply

Tags
cooling, cummins, fan, heating, thermostat



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
Engine Fan Mount Bracket Cracked yuppie_rednk Alpine Coach Owner's Forum 2 09-27-2014 07:35 AM
Jamestown Engine Plant Celebrates Anniversary with Cummins DriVer RV Industry Press 0 08-09-2014 08:26 PM
Engine fan cycle(on and off) McGalliard01 Cummins Engines 1 02-23-2014 08:19 AM
Engine fan dust storm allure99 Country Coach Owners Forum 19 01-18-2014 08:16 AM
Fan clutch 02 workhose 8.1 Ron & Dee Workhorse and Chevrolet Chassis Motorhome Forum 3 06-07-2013 03:27 PM

» Featured Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 06:14 AM.


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