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09-03-2016, 04:45 PM
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#1
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Established Member
Join Date: May 2016
Location: Town and Country
Posts: 17
M.O.C. #18640
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Operating temperatures
Quick question for RAM drivers:
I just upgraded tow vehicles from my current signature vehicle (2014 3500 SRW, CTD with 3.43 rears and 68RFE gearbox) to a new 2016 RAM 3500, DRW, CTD with 3.73 rears and Aisin transmission. On a similar grade I'm experiencing temps that are 10/15 degrees higher ( coolant and oil around 225), with the exception of the tramsmission, which ran 20 degrees lower than in my old truck. Does anybody have a similar experience or comments on the temp I experienced? The other thing I noticed is that the additional cooling fan kicks in at 228 instead of 217 degrees. The grade by the way was I70 westbound between Denver and Idaho Springs.
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09-03-2016, 05:42 PM
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#2
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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225 is where mine are going up Raton pass and similar hills.
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Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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09-04-2016, 03:06 AM
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#3
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Montana Master
Join Date: Apr 2013
Location: Arroyo City
Posts: 3,110
M.O.C. #13395
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My 2014 Ram runs between 210 and 220 on long, hard pulls
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09-04-2016, 05:28 AM
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#4
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Montana Master
Join Date: Sep 2013
Location: Pensacola (mail forward service)
Posts: 3,198
M.O.C. #13740
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I think this is probably due to the higher rear end ratio. I relate it back when I was doing century tours (100 miles) on my bicycle in mountain country in new mexico with two big passes. If I didn't get the gearing changed correctly as needed, then I being the engine would heat up and suffer. John
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2012 F350 6.7 L dually, 2013 3800RE with 6 pt leveling, Sumitomo 17.5" load range h tires, Samsung 18 cu ft residential fridge, 8k Morryde I.S. with disc brakes. Full timing since 2012.
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09-05-2016, 05:00 AM
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#5
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Montana Master
Join Date: Jan 2013
Location: Depends on temps
Posts: 1,648
M.O.C. #13157
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My guess is they have cranked the temps up due to emissions. I have a '12 and 217 is my fan on temp and 68RFE is usually 80 degrees plus ambient.
My suggestion is to drop by the Cummins Engine forum and ask there.
http://www.cumminsforum.com/forum/
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2012 Ram Laramie 3500 DRW 4x4 3.73 Tow Max Pkg B&W Companion 60 gal RDS aux fuel tank. 2014 Montana 3150RL, 2 A/C's, Leather, 6 Point Jacks, Splendede WD2100XC, Mor/ryde X-Factor, Duravis 250 tires with TST 507RV monitors. 2 x Honda EU2000's
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