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02-08-2021, 06:24 AM
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#1
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Senior Member
Join Date: Jul 2017
Location: New Freedom, PA
Posts: 791
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Transmission fluid temperature
For those who have added a gauge to monitor the transmission fluid temperature, what temperature are you seeing in summer driving?
Mine is usually running at 200F, or a few degrees more, driving on the interstate.
I'm not trying to open a can of worms here, or start a debate on what trans temps are OK or not.... I'm just asking what fluid temperatures you are seeing.
Thanks in advance.
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__________________
Ron K3HIL Amateur Extra
Retired
2016 Greyhawk 29MV
2000 Jeep Sahara
"Any advice I give or facts I present are valid to the best of my knowledge,
but I am not responsible if you follow it and you **** your **** up."
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02-08-2021, 06:33 AM
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#2
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Senior Member
Join Date: Nov 2016
Location: San Antonio
Posts: 2,952
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I recognize you are in the Class C forum, but for anyone else looking, my F150 will occasionally climb to 206 which the dealer said was fine. Most of the time it sits at 198 to 200.
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2017 JayFlight 21QB
2021 Ford F150 SCrew 3.5 Eco, 157”, 3.55, Tow Pkg
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02-08-2021, 08:32 AM
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#3
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Senior Member
Join Date: Apr 2018
Location: Ravenna
Posts: 417
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For reference: My Dodge Durango (hemi) hovers around 205 degrees when I am towing a 3500lb trailer.
__________________
2014 Greyhawk 31FS
RV's, Pop-ups, and Tents going back to the 1960's
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02-08-2021, 09:01 AM
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#4
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Senior Member
Join Date: Feb 2019
Location: Northern California
Posts: 1,999
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Quote:
Originally Posted by Bullitt6283
For those who have added a gauge to monitor the transmission fluid temperature, what temperature are you seeing in summer driving?
Mine is usually running at 200F, or a few degrees more, driving on the interstate.
I'm not trying to open a can of worms here, or start a debate on what trans temps are OK or not.... I'm just asking what fluid temperatures you are seeing.
Thanks in advance.
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I am also driving a pickup. I added a Mag-Hytec aluminum trans pan ( 2 extra quarts ), it runs 180 to 190 flat land and will get north of 200 If I'm pulling a hard hill.
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1984 gmc k1500 4x4 s/w/b. s/b 350,700r4,373 diff,.restored and upgraded( retired - sold). 2022 Chevy Z-71 Trail Boss 4x4 crew cab s/w/b 6.2 gas a/t. 2018 hummingbird Baja 16mrb,Yamaha ef2400ishc inverter.
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02-08-2021, 09:45 AM
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#5
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Senior Member
Join Date: Oct 2019
Location: Phoenix
Posts: 3,916
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The Duramax Allison always ran around 200F and a few degrees higher pulling mountains. The Greyhawk is also around 200F and does not seem to climb much on hills with the Jeep behind.
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2018 Greyhawk 29MVP-Sold
2023 Jeep Gladiator Mojave
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02-08-2021, 10:33 AM
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#6
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Senior Member
Join Date: Dec 2012
Location: Southern Indiana
Posts: 3,209
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Quote:
Originally Posted by Bullitt6283
For those who have added a gauge to monitor the transmission fluid temperature, what temperature are you seeing in summer driving?
Mine is usually running at 200F, or a few degrees more, driving on the interstate.
I'm not trying to open a can of worms here, or start a debate on what trans temps are OK or not.... I'm just asking what fluid temperatures you are seeing.
Thanks in advance.
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If you have the Ford Triton V-10 it should be mated to Fords 6R140 transmission, one of the most reliable transmissions ever built. This transmission has an internal thermostat to control cooling and is designed to run hotter.
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2012 Eagle 320 RLDS
2017 Ford F-250 FX4 Crew STX 6.2l
3.73 E-locker
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02-08-2021, 10:52 AM
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#7
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Senior Member
Join Date: Apr 2011
Location: ON
Posts: 831
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200F is normal these days. If you start seeing 235, you should be backing off the throttle, over 245F I would be pulling over to let things cool down. I think at 265F is when you'll get a warning that the transmission is overheating.
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2015 Jayco WhiteHawk 28BHKS Summit Edition
2021 Ford F-150, 4x4, 3.5L Ecoboost, Max Tow
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02-08-2021, 11:34 AM
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#8
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Senior Member
Join Date: Sep 2010
Location: PNW
Posts: 5,195
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My 2011 Ram 1500 Hemi transmission levels out at around 130°F when towing my 26BH. Going up very long grades I've seen it hit 220° or so, but it drops fairly quickly on the downgrade.
I always keep the 6 speed transmission in 4th when towing. The torque converter stays locked up most of the time that way. It will disengage going up medium grades, and I downshift manually when approaching the big hills/passes. My goal is to keep the torque converter locked up as much as possible, and to prevent the transmission from downshifting. Doing that keeps my transmission nice and cool, which will extend the fluid life and, I hope, the life of the transmission.
It has almost 150k miles on it and it still works perfectly.
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Bill
2011 Dodge Ram 1500 HEMI Quad Cab
2011 Jay Flight 26BH
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02-08-2021, 02:07 PM
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#9
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Senior Member
Join Date: Apr 2018
Location: NW Arkansas
Posts: 166
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Mine runs 200 to 210. I tested it with my spare tire mounted out front on a front hitch receiver and without the spare. I thought the spare out there might block airflow to the trans cooler and radiator. I couldn't tell any difference in engine coolant or trans temps with or without the spare tire out there.
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Mike & Diane
2019 Redhawk 26XD (SOLD)
2019 Equinox LT 2.0T
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02-08-2021, 02:17 PM
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#10
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Senior Member
Join Date: Mar 2017
Location: North Texas
Posts: 3,600
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Quote:
Originally Posted by MikeUSNRet
Mine runs 200 to 210. I tested it with my spare tire mounted out front on a front hitch receiver and without the spare. I thought the spare out there might block airflow to the trans cooler and radiator. I couldn't tell any difference in engine coolant or trans temps with or without the spare tire out there.
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Mine runs similar to what you stated. Does anyone know where the transmission fluid temperature sensor is located? I ask as perhaps it is in\on the return fluid line (or trans fluid inlet line) which goes through the radiator and therefore "normally" runs a similar temp as the engine coolant runs. ~CA
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2010 GreyHawk 31SS
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02-08-2021, 02:35 PM
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#11
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Senior Member
Join Date: Mar 2020
Location: Central Ohio
Posts: 196
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I do watch the trans temp while towing. Runs 185º-193º in the summer on the interstate, 63 mph, usually stays in 6th while pulling the 6,500 lb TT.
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02-08-2021, 03:51 PM
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#12
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Senior Member
Join Date: Jul 2016
Location: Atlanta
Posts: 307
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Quote:
Originally Posted by Bullitt6283
For those who have added a gauge to monitor the transmission fluid temperature, what temperature are you seeing in summer driving?
Mine is usually running at 200F, or a few degrees more, driving on the interstate.
I'm not trying to open a can of worms here, or start a debate on what trans temps are OK or not.... I'm just asking what fluid temperatures you are seeing.
Thanks in advance.
.
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what gauge did you add, where did you get it?
__________________
2017 Greyhawk 29MV
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02-08-2021, 04:00 PM
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#13
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Senior Member
Join Date: Jul 2017
Location: New Freedom, PA
Posts: 791
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Quote:
Originally Posted by craigav
... Does anyone know where the transmission fluid temperature sensor is located? ... ~CA
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In the Ford 6R140, the sensor is in the valve body. You have to remove the pan and filter to service it.
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__________________
Ron K3HIL Amateur Extra
Retired
2016 Greyhawk 29MV
2000 Jeep Sahara
"Any advice I give or facts I present are valid to the best of my knowledge,
but I am not responsible if you follow it and you **** your **** up."
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02-08-2021, 04:07 PM
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#14
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Senior Member
Join Date: Jul 2017
Location: New Freedom, PA
Posts: 791
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Quote:
Originally Posted by GeorgiaRV
what gauge did you add, where did you get it?
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Scangauge
https://www.scangauge.com/
.
__________________
Ron K3HIL Amateur Extra
Retired
2016 Greyhawk 29MV
2000 Jeep Sahara
"Any advice I give or facts I present are valid to the best of my knowledge,
but I am not responsible if you follow it and you **** your **** up."
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02-08-2021, 04:18 PM
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#15
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Senior Member
Join Date: Mar 2017
Location: North Texas
Posts: 3,600
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Thanks Bullitt6283 (congrats on you hitting post
#600 for you )
More particular to my question than the actual location of the sensor is if the temperature sensor is measuring the returning and already cooled transmission fluid by the radiator and therefore reading a cooler temp, or would it be measuring the hotter fluid destined to leave the transmission and flow into the cooler? I suppose it doesn't really matter, just that my thought was that I noticed on mine that it seems to always be close to the engine coolant temperature.
Also, just as a thought to share, I am using the Android OBDII Fusion app that pulls the temp from the OBDII port via bluetooth into my android based radio (also works with Android phones, tablets). There are hundreds if not thousands of data points the OBDII computer has that can be viewed via the OBDFusion app.
~CA
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2010 GreyHawk 31SS
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02-08-2021, 08:27 PM
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#16
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Senior Member
Join Date: Jul 2016
Location: Atlanta
Posts: 307
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Quote:
Originally Posted by Bullitt6283
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I have a OBDII scanner https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1 but I couldn't find where the Transmission temp was available for viewing. Did you have to do anything special to get the transmission temp to show?
__________________
2017 Greyhawk 29MV
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02-09-2021, 04:52 AM
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#17
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Senior Member
Join Date: Jul 2017
Location: New Freedom, PA
Posts: 791
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Quote:
Originally Posted by GeorgiaRV
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Yes. For the trans temperature to show on the Scangauge, I had to enter specific access codes.
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__________________
Ron K3HIL Amateur Extra
Retired
2016 Greyhawk 29MV
2000 Jeep Sahara
"Any advice I give or facts I present are valid to the best of my knowledge,
but I am not responsible if you follow it and you **** your **** up."
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02-09-2021, 07:38 AM
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#18
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Senior Member
Join Date: Mar 2017
Location: Cincinnati
Posts: 499
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My trans temp also runs 200-210 while towing, under 200 when not towing
Truck in signature
__________________
2016 Jayflight 27BHS
2015 Ford F-250 Super cab LB, 4x4 6.2 L gas
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02-09-2021, 08:50 AM
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#19
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Senior Member
Join Date: Nov 2016
Location: Port Huron, Mi
Posts: 1,737
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I can't say what my 15 Silverado was towing at with the stock trans pan on it. At 1000 miles I dumped the engine oil and filter and changed them to synthetic, pulled the rear diff cover off and cleaned the inside and changed that to synthetic, later added an AAM finned rear diff cover, and the trans I dumped the trans fluid, changed BOTH filters, installed a Mag Hytec double deep trans pan and went full synthetic trans fluid. Pulling my Northpoint, around 16k, at 72, 73mph in lower to mid 90' outside itll see trans temps right about 180. Running with my buddy that has a 16 Silverado and he pulls a Jayco 29.5, little shorter and a bit lighter and his trans temps at the same time, same road, same speed, were all of 25* higher than mine and his was all stock.
__________________
2017 North Point 375BHFS
2015 Silverado 3500HD Crew Dually Dmax 4x4
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02-09-2021, 08:56 AM
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#20
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Senior Member
Join Date: Jul 2016
Location: Atlanta
Posts: 307
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Quote:
Originally Posted by Bullitt6283
Yes. For the trans temperature to show on the Scangauge, I had to enter specific access codes.
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do you remember what the access codes are?
__________________
2017 Greyhawk 29MV
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