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07-22-2018, 07:59 PM
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#1
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Member
Join Date: Jul 2015
Location: Mt. Pleasant, North Carolina
Posts: 35
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Normal operating temperature range for Allison 2100
Does anyone happen to know the normal operating temperature range for an Allison 2100 series transmission? I have a 2014 Thor Palazzo and we pull a 2015 Jeep Wrangler Unlimited. The last time that I pulled the Jeep the temp on the transmission was running between 194 and 200 degrees.
Thanks.
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07-22-2018, 08:20 PM
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#2
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Senior Member
Fleetwood Owners Club Freightliner Owners Club Spartan Chassis
Join Date: Nov 2009
Location: FORT WORTH, TEXAS
Posts: 2,751
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Quote:
Originally Posted by Oldtrh
Does anyone happen to know the normal operating temperature range for an Allison 2100 series transmission? I have a 2014 Thor Palazzo and we pull a 2015 Jeep Wrangler Unlimited. The last time that I pulled the Jeep the temp on the transmission was running between 194 and 200 degrees.
Thanks.
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That isn't to bad.
The transmission is considered to be overheated when any of the following temperatures are exceeded:
Sump fluid 250 degrees F
Fluid to Cooler 300 degrees F
Retarder out fluid 330 degrees F
Bill
__________________
2008 Newmar Mountain Aire
450 HP Cummins ISM 4000MH Allison Trans.
Towing a 2014 Honda CRV with a Blue Ox tow bar.
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07-22-2018, 08:55 PM
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#3
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Senior Member
Join Date: Feb 2003
Location: Jarrell, TX 76537
Posts: 4,501
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Funny you should ask.... 180 to 190+ is fairly normal iirc.
Today it was 106 here in Texas and my Corvette trsns was running 196, oil 223 and coolent 203.
__________________
Dale
AKA - Oemy
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07-22-2018, 09:51 PM
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#4
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Senior Member
Join Date: Jul 2018
Posts: 117
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I was an Allison Transmission Field Service Tech, I completely agree with the numbers posted by WILDBILL308 for what that's worth.
__________________
2017 Outback 330RL (stationary full timers)
2006 GMC 2500HD Crew Cab 4x4 Duramax
Dust Junkies Racing, 3 time Baja 1000 Class Champions
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07-23-2018, 06:42 AM
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#5
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Member
Join Date: Jul 2015
Location: Mt. Pleasant, North Carolina
Posts: 35
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Great. Thanks so much.
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07-23-2018, 09:24 AM
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#6
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Senior Member
Winnebago Owners Club Pond Piggies Club Appalachian Campers Mid Atlantic Campers
Join Date: Dec 2002
Location: Sarver, PA/Crystal River, FL/Shelocta, PA
Posts: 4,671
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OPERATING TEMPERATURES
To properly operate the transmission, adhere to the following minimum and maximum transmission operating temperatures:
Sump, minimum continuous 40°C (100°F)
Sump, maximum intermittent 121°C (250°F)
To cooler, maximum intermittent 149°C (300°F)
Source: Allison Operator's Manual
__________________
Sarver, PA/Crystal River, FL/Shelocta, PA · FMCA 335149 · W3TLN 2005 Suncruiser 38R · W24, no chassis mods needed · 2013 Honda Accord EX-L · 2008 Honda Odyssey EX-L
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07-25-2018, 11:35 PM
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#7
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Senior Member
Join Date: Mar 2017
Location: Alaska in Summer Snow Birds in Winter
Posts: 2,073
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I have trans temp gauges on both of my motorhomes. On our Itasca I can also see trans temp on the scangauge.
On the 6 Speed Adventurer in the southwest I see 150-160f on normal 80f day with little to no climbing and not towing. These numbers went up to 170-175 this summer when the ambient was +95 every day. This fall we will be pulling a toad so I'm sure the temp will go up 5 to 10f from those numbers.
On our Itasca back in Alaska (5 speed Allison) I rarely see more than 140f for trans temp when empty. When I pull my jeep or any other big load I will see 160f if I'm pushing it. Throw in some hills and the temp goes up some. Last week we hauled the RZR around and I never saw over 145f on the gauge. Mostly flat ground but hauling butt for sure.
__________________
Tom and Sherry W.
06 Winnebago Adventurer 38J Workhorse W24 Lots of motor and suspension mods in the works
02 Itasca Suncruiser 35U. Workhorse W22 w/Safe-T-Plus, Koni FSDs, UltraTrac, etc, etc.
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