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06-30-2013, 01:17 PM
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#1
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Junior Member
Join Date: Dec 2011
Posts: 23
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engine temperature
I have a 2009 sportscoach, w/ 425 cummins diesel,coming back from fla in april,the outside temp was 75-80, I was running approx 65 mph...the temp guage would rise up to 210-218 degrees, then the fan wd kick on & the temp wd come back down. this happened on & off every 5-10 minutes, until the next day when I was in a cooler climate,in which the guage remained the same or "normal".........is this normal for rear engine,with rear mount radiator?
thks Jim
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06-30-2013, 01:55 PM
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#2
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Senior Member
Freightliner Owners Club
Join Date: Apr 2004
Location: Show Low Az
Posts: 1,323
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When was the last time you had the radiator cleaned? Stuck thermostat, just a couple of thoughts.
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Dale&Susan, 08 Alfa Gold, DaGirlsRv Blog
2015 F-150XLT_2000W Solar_800 AmpHr Lithium
Magnum_MSH 3012 & PT100
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06-30-2013, 03:33 PM
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#3
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Senior Member
Tiffin Owners Club Freightliner Owners Club
Join Date: Oct 2008
Location: Merritt, BC
Posts: 3,753
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The upper limit of 218 is a little high. I do a lot of mountain driving in the west and mine will regularly get up to ~212 area when the fan cuts in. This is perfectly normal for an EPA-07 engine.
However I agree with the radiator cleaning question. I do mine every year using Extreme Simple Green
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Bob, Sherron & Kinsey (RIP 2013-2022)
2017 Tiffin Phaeton 40QBH
2014 Jeep Cherokee Limited
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06-30-2013, 05:41 PM
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#4
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Senior Member
Join Date: Nov 2009
Location: Warren, Oregon
Posts: 2,559
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I'm using the SilverLeaf and my fan comes on at 204deg then drops to 196deg but i'm running a Cat C9 with a side radiator. As stated you may need to look at getting the radiator cleaned if you have been over some dusty roads
2 stroker
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2006 Country Coach Inspire 360 40ft Genoa Designer Series, Samsung 197 RR
Cat C9--STEEL & COPPER Bolt Together Radiator w/ updated rubber mounting
SilverLeaf 330 Magnum 2812 PSW 2011 Ford Edge Sport-Air Force One
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06-30-2013, 07:05 PM
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#5
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 30,903
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Wash out the radiator fins using air conditioner coil (foaming) cleaner_follow directions. It cannot do harm to your radiator, it is simply a strong detergent to loosen caked on dirt. I would use the hose from the engine-side of the radiator to prevent spraying the dirt onto the engine. I did this a few times on my cars to remove baked-in bugs and road dirt.
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07-01-2013, 06:38 AM
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#6
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Junior Member
Join Date: Dec 2011
Posts: 23
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eng temp
to bobged, maybe the fan is kicking on @ 212 or so, do you have a rear mounted radiator? if you use extreme simple green, to flush fins, do you spray the solution from the engine side, or the backside?how do you get to the engine side,the fan shroud cover prevents from getting to eng side.
thks jim
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