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Old 10-03-2016, 11:37 AM   #1
DavidWSnow's Avatar
Country Coach Owners Club
Join Date: Oct 2013
Location: Woodinville, WA
Posts: 48
CC Inspire Cooling Issue

My 2005 CC Inspire (Cat C9) developed cooling issues last weekend on a short (100 mile) trip. My VMSpc showed it normal 190-200 temp range for the first 60 miles then on a small grade the temp started to rise. I pulled of and let it idea and cool down when it hit 217. It worked OK for the rest of the outbound leg. On the way back the same thing happened. The CC gauges had similar readings and my IR thermometer showed similar readings, so I don't think that the sensor is bad.

When I got home, I called Cat and discovered that the engine has two thermostats one at 97C and on at 98C (about 206F), but if they weren't working then the engine would overheat all of the time. When the exhaust brake (and high-speed fan) the engine cools quickly.

I found an old post about the crazy fan controller, but was not allowed to reply.

Where is the controller? Are there any other options?


Dave Snow --- 2005 40' Country Coach Inspire
2004 Honda CR-V Ex with BlueOx tow bar
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Old 10-03-2016, 12:56 PM   #2
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Country Coach Owners Club
Join Date: Feb 2000
Location: Fort Worth, TX
Posts: 120
About 3 years ago, I had the same problem and circumstances. Cat replaced both thermostats with the latest design and....no problems since.

2005 Country Coach Inspire Quad Slide w/C9-400 Kitty Kat, '08 Jeep Commander. "RVing since 1968"
Escapee #27953, FMCA #12697, Good Sam Life Mbr.
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Old 10-03-2016, 05:28 PM   #3
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Posts: 712
If you have a hydraulic fan with the Sauer Danfoss controller, the controller is mounted on the bottom of the radiator shroud. Lay underneath the radiator and look up. You can force the fan to run on high by disconnecting the power connector to the fan. It is the two pin connector. I wouldn't do it while the engine is running because the fan will kick up a bunch of dust when it goes to high speed and your eyes may suffer.
Pete - Full Timing
2000 Country Coach Magna 40', CAT C10, #5892
2006 Jeep Liberty
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