JEEP, please take my 'Rubicon' back..
JK Enthusiast
Joined: Apr 2011
Posts: 191
Likes: 0
From: Lansing Michigan
you guys know this is a problem that can be fixed for under $100
ht tp://www.summitracing.com
Yes it should have come with one from the factory but it is very easy to install a trans cooler.
ht tp://www.summitracing.com
Yes it should have come with one from the factory but it is very easy to install a trans cooler.
Last edited by Moochie; Jul 4, 2012 at 10:22 AM. Reason: Please, no clickable links to non sponsors.
JK Super Freak
Joined: Mar 2011
Posts: 1,204
Likes: 0
From: Wilmington, NC
Originally Posted by DeucesALLin
... disabling your ESP will help. Your ABS system generates a lot of heat and the repeated pulling of timing leads to rich conditions, then the computer overcompensates and you run lean- and your engine temps climb.
That's why you don't have problems in 4lo, the ESP is disabled.
That's why you don't have problems in 4lo, the ESP is disabled.
Second. This is talking about the transfer oil not the engine oil.
JK Super Freak
Joined: Mar 2011
Posts: 1,204
Likes: 0
From: Wilmington, NC
Originally Posted by CallOfDutyRubicon
About 10 miles up a DIRT ROAD today, and the 'hot oil' warning comes on along with an annoying chime. Although it was a 5000 ft climb, there is no excuse for a 2011 model ANYTHING, much less a freakin Rubicon to get an overheated transmission on a dirt road! Needless to say, that ruined my trip to the eagle rock trail (another 7 miles further!). Oh, and stopped and talked to a guy in a 1996 XJ that he paid a grand for last week. Yeah, made it all the way to the trail, down the 2 mile level 7 trail, and back down the mountain. Did his trans overheat? Nah... Jeep, please buy this POS back from us! Thank you!
JK Enthusiast
Joined: Aug 2011
Posts: 234
Likes: 0
From: Ventura County
For one your ecu adjusts rich to lean in Milli seconds and constantly does so even in normal driving conditions. So there isn't a long lean or rich cycle. Not saying the ESP thing wouldn't work cause I don't know but your explaination as to why is wrong or off a bit.
Second. This is talking about the transfer oil not the engine oil.
Second. This is talking about the transfer oil not the engine oil.
I think its referring to transmission oil, not transfer oil
I too have a 2011, Should I have to put a cooler in it? NO!!!!! Did I? YES!!!!! I never saw the light, and did'nt want to. A few of my friends have even had the trans temp light come on while driving on road "steep very long grade". There's no way I am going to drive on-road with the Jeep in 4-LO going 15 mph to keep the trans cool.
Its B/S but necessary.
JK Super Freak
Joined: Oct 2010
Posts: 1,208
Likes: 2
From: Manitoba
Did you have your Jeep in drive with OD off?
I believe in your owners manual it advise on steep grades to turn off OD and move your shifter out of drive atleast I have seen it in other other manuals for auto transmissions.
I believe in your owners manual it advise on steep grades to turn off OD and move your shifter out of drive atleast I have seen it in other other manuals for auto transmissions.
Last edited by Noxian; Jul 3, 2012 at 07:34 AM.
JK Enthusiast
Joined: May 2012
Posts: 219
Likes: 0
From: Denver, Colorado
I too have a 2011, Should I have to put a cooler in it? NO!!!!! Did I? YES!!!!! I never saw the light, and did'nt want to. A few of my friends have even had the trans temp light come on while driving on road "steep very long grade". There's no way I am going to drive on-road with the Jeep in 4-LO going 15 mph to keep the trans cool.
Its B/S but necessary.
Its B/S but necessary.
JK Super Freak
Joined: Jun 2011
Posts: 1,470
Likes: 2
From: Bakersfield Kalifornia
Its a known issue, should have been fixed on the 08s to '11s but wasnt. Cost me $70 and about 1 1/2 hours of my time to fix it. Regardless this is still my favorite Jeep Ive owned.
JK Enthusiast
Joined: Aug 2011
Posts: 170
Likes: 0
From: Duncan, OK
i would really like to see a study on this problem. the transmission oil cooler is located at the bottom of the ac condenser which is located in front of the radiator. Jeep specifically designed the plastic to route air coming over the bumper into the trans cooler. Also the electric fan does pull air through the cooler while it is running. If you turn on the ac compressor by activating the ac button the electric fan also comes on and stays on while the ac compressor is running.
i own a 2011 and have been wheeling for 4-6 hrs several times with temps above 100. i always turn on the ac button and at least run the fan on low so the electric fan on the radiator is running and pulling air through the trans cooler. I have never seen the light and have wheeled in all mods, on steep grades etc.
2 things i'd like to see studied..
1. does the aftermarket bumper/winch restrict air flow to the cooler? (i've noticed most aftermarket bumper/winch combo's cover the trans cooler almost completely).
2. if you run the ac compressor causing the electric radiator cooling fan to run does this mitigate the problem? (maybe even with the trans cooler covered by aftermarket bumper/winch combo's?)
forgot to say... you could always trade me your rubicon with the problem for my 2011 jku sport without the problem... :P
i own a 2011 and have been wheeling for 4-6 hrs several times with temps above 100. i always turn on the ac button and at least run the fan on low so the electric fan on the radiator is running and pulling air through the trans cooler. I have never seen the light and have wheeled in all mods, on steep grades etc.
2 things i'd like to see studied..
1. does the aftermarket bumper/winch restrict air flow to the cooler? (i've noticed most aftermarket bumper/winch combo's cover the trans cooler almost completely).
2. if you run the ac compressor causing the electric radiator cooling fan to run does this mitigate the problem? (maybe even with the trans cooler covered by aftermarket bumper/winch combo's?)
forgot to say... you could always trade me your rubicon with the problem for my 2011 jku sport without the problem... :P
Last edited by BornJeep; Jul 3, 2012 at 10:23 AM.
