The JF011E is a bit of a sad transmission. So much so Jeep is discontinuing them in the 2014 model year…from what I hear. Mine failed at 144k.
The whine comes from the failure of the Koho bearings on the transfer gear as a result of a lack of lubrication. The noise gets louder until the debris from the bearings fills the filter reducing the fluid pressure producing a P700 or P777 code giving you limp mode. The TCM code cannot be reset without the factory interface. An $80 service charge.
Chrysler, as of yet, supplies no parts for these transmissions. If you are out of warranty you are SOL.
I got mine from a wrecker. $1200. I was fortunate as it was the only one in a 500km radius. This should tell you something.
The difficult bolts to reach are at 9 and 3 O’clock on the bell housing. You might want a fresh 14mm wrench as striping them reduces your options.
If there is damage to the bearings but not the case you could get lucky by replacing the bearings. My Patriot was not as fortunate as the case was destroyed.
Free manuals are available on line, after some searching.
I know this will help some and put others into despair.
I replaced mine then sold the car.
Last edited by d0t; 10-07-2013 at 06:59 PM..