Transmission still overheats after trans cooler installation
#1
JK Newbie
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Join Date: Feb 2019
Location: Andrews, NC
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Transmission still overheats after trans cooler installation
A'ight. I've got a '08 JK. Automatic. I recently had a trans cooler added and today was the first time tooling around offroad since the cooler was added. And....HOTOIL message came up again. The hills weren't so bad that I needed to shift into 4LO or even 4HI. We were in 2WD with the transmission in Drive and O/D on. Granted, I may be stupid here, and if so, tell me so. I've read conflicting posts about O/D on vs. O/D off, and Drive vs. 2nd gear vs. 1st gear. I bow to experience in this case. And I had the transmission oil and filter changed around the same time of the cooler install. Do I now have to changes the oil even tho it hasn't changed color. Thanks. I'll be over here coloring whilst waiting on your replies. Again, thanks.
#2
Super Moderator
Was your vehicle part of the software flash that was conducted years ago in regards to the hot oil light? I thought have any other details because it didn't pertain to me at the time.
#5
JK Enthusiast
At the time 6500lbs empy, 5.38's, 3.8, 40" Trail graplers.
Did the Rubicon loaded up in 100* heat and trans stayed 220* or less trans and oil temps.
Normally would stay 200* or less.
On my '07 running 37's MTRs, 5.38's 6000lbs empty same results.
I run 5-40 Schaffers full SYN.
Did the Rubicon loaded up in 100* heat and trans stayed 220* or less trans and oil temps.
Normally would stay 200* or less.
On my '07 running 37's MTRs, 5.38's 6000lbs empty same results.
I run 5-40 Schaffers full SYN.