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10-05-2021, 06:31 PM
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#1
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Senior Member
Join Date: Sep 2011
Posts: 272
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Danfoss Controller Option
I thought I would give an update on the Danfoss fan controller option I installed a few years ago. After approximately three of years of running and over 14,000 miles I have had zero issues with it. I have climbed the rocky mountains in both the USA and Canada without a single overheat issue. The primary reason I 'm writing this is to boast about my fuel milage improvement. With my old, original, Danfoss controller I would consistently get between 6.4 to 6.5 mpg. Now my average is between 7.4 to 7.6 mpg. This has exceeded my expectations in performance & fuel economy.
Sincerely,
CC Rider
2005 Inspire Siena, 400 Cat C-9 Engine, Towing a Jeep Grand Cherokee
PS: I am not trying to convince anyone into this system, I am just reporting my results.
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10-06-2021, 07:53 AM
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#2
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Senior Member
Join Date: Nov 2012
Posts: 1,288
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Wax Valve is better option. Lots of ways to get better mileage, you could buy a Prius.
__________________
Wally & Elta Mae
2007 Allure 470 Sunset Bay #31535
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10-06-2021, 12:48 PM
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#3
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Community Moderator
Join Date: Sep 2011
Location: Between the Oceans
Posts: 7,969
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Ron, I can add my experience to yours...
I have driven about 700 miles since the mod, climbed shasta mountain from Oregon towards south, no issues. I haven't logged enough miles to attest the mileage improvent, but I have noticed that my fuel level indicator used to stay at right below than 1/2 after 400 miles driving, the last time I filled up at Costco in Medford and arrived in San Jose I still had 5/8 left over; that was 425 miles stretch. I know it's not a correct way to measure the fuel economy, but I could tell the difference and I couldn't be happier. 
__________________
Steven & Polly
2000 Country Coach Intrigue 40' ISC 350
2018 Ford Explorer 4WD
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10-06-2021, 12:50 PM
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#4
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Senior Member
Join Date: Jan 2020
Posts: 174
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RonandSuw74
Thank you for the feedback. A thoughtful gesture and the 3 year "test" gives it some authenticity.
What does your improvement consist of? All electronic or?
Thanks!
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10-06-2021, 04:25 PM
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#5
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Senior Member
Join Date: Aug 2010
Location: Over the next hill, around the next curve...
Posts: 5,389
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Quote:
Originally Posted by Boomper
RonandSuw74
Thank you for the feedback. A thoughtful gesture and the 3 year "test" gives it some authenticity.
What does your improvement consist of? All electronic or?
Thanks!
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Concur! And glad they've improved the software  !
I had no problem with the Wax Valve on our ISL, liked it and I felt more power to wheels, and about .5MPG higher MPG..
That being said, it's great to have options !
Thanks,
Smitty
__________________
07 Country Coach Magna Rembrandt 45' ISX600
Roo II was our 04 Country Coach Allure 40'
OnDRoad for The JRNY! Enjoy life...
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10-07-2021, 07:05 AM
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#6
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Senior Member
Join Date: Sep 2011
Posts: 272
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Fuel Improvement
Boomper, Electronic, it's based on my ScanGauge. Although, it's backed up by my fuel gauge. When I track miles driven I do have more fuel left in my tank than I used to.
CCRider
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10-07-2021, 09:24 AM
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#7
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Senior Member
Join Date: Nov 2012
Posts: 1,288
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what
Jerry Seinfeld says......
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Wally & Elta Mae
2007 Allure 470 Sunset Bay #31535
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12-05-2021, 04:25 PM
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#8
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Senior Member
Join Date: Sep 2016
Posts: 553
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NEVERMIND... found your original thread on this.
====
Was this a do it yourself project? I believe I have the Danfoss on my 08 Allure and the fan is defaulted to high speed.
I would like to replace with a new DF controller too. Any tips for ordering?
__________________
Tony
2008 Country Coach Allure (Crane Prairie) 45' / ISM500
2016 Lincoln MKX Black Label
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12-05-2021, 07:46 PM
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#9
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Senior Member
Join Date: Aug 2021
Posts: 367
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Quote:
Originally Posted by TTD
NEVERMIND... found your original thread on this.
====
Was this a do it yourself project? I believe I have the Danfoss on my 08 Allure and the fan is defaulted to high speed.
I would like to replace with a new DF controller too. Any tips for ordering?
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I think you can get the controller from Whitehouse Products UK..the fan motor too.
Ch
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Chris H
2005 CC Magna #6503
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12-06-2021, 07:16 PM
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#10
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Senior Member
Join Date: Jul 2014
Posts: 193
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I have gotten mine from https://www.bfpna.com/ .
__________________
George in Birmingham
2015 Tiffin Breeze 28BR
'03 Country Coach Magna 6298 - SOLD
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12-30-2021, 06:29 PM
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#11
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Community Moderator
Join Date: Sep 2011
Location: Between the Oceans
Posts: 7,969
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Since my mod I have had 3 tank refills and the average fuel economy improved by 0.8 mpg (from right about 8.0 to 8.8). Now my engine runs much quieter and smoother; on a flat road in 62-65mph I noticed that the engine was frequently wandering around 27-40% load. Very happy with the result.
Happy trails!
__________________
Steven & Polly
2000 Country Coach Intrigue 40' ISC 350
2018 Ford Explorer 4WD
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12-31-2021, 11:35 AM
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#12
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Senior Member
Country Coach Owners Club
Join Date: Jun 2010
Posts: 160
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To previous post from TTD. 08 Allure should have the controls in the ECM. you may need to look at sensors if the fan is on high
__________________
08 Allure 470 37 Sunset 31597 Cummins 425
2022 GMC Sierra M&G braking
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01-18-2022, 02:25 PM
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#13
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Member
Join Date: Jul 2008
Posts: 46
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I have purchased kit from Source Engineering and trying to figure which line is P and which is T. My lines are not marked going into Sauer Danfoss Controller. Any help would be appreciated it seems like the older I get the brain just don't work like it used to.
__________________
Larry B
2003 Intrigue 38’ Suite Escape
Dallas TX
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01-18-2022, 06:52 PM
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#14
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Senior Member
Join Date: May 2016
Location: San Francisco Bay Area, California
Posts: 950
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Quote:
Originally Posted by lbfrombigd
I have purchased kit from Source Engineering and trying to figure which line is P and which is T. My lines are not marked going into Sauer Danfoss Controller. Any help would be appreciated it seems like the older I get the brain just don't work like it used to.
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P port on top of existing controller
T port on the side of existing controller
Bill
__________________
2003 Country Coach Intrigue 36'
Cummins ISL 400
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