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torque converter problem

Discussion in 'Wrangler JK (2007-2017)' started by MAT325, May 8, 2017.

  1. May 8, 2017 at 1:21 PM

    MAT325 [OP] New Member

    May 8, 2017
    2012 Sport
    Has anyone had or heard about torque converter problems related to design issue? My 2012 needed a new transmission just three months out of warranty due to torque converter defect (not wear and tear) I learned that the design was changed this year. Jeep Chrysler has completely dismissed my requests for looking into it. I have pictures etc.
  2. May 9, 2017 at 7:27 AM

    chris4x4 With sufficient thrust, pigs fly just fine Moderator

    Jul 19, 2016
    Welcome! Can you go into more detail of what the issue, and resolution was?
  3. May 9, 2017 at 7:52 AM

    OFFGRID Well-Known Member

    Oct 3, 2016
    First Name:
    1979 Jeep CJ7, 258, TH350, NP208
    Howell fuel injection, header, HEI distributor, TH350, NP208, SOA lift with YJ springs in the front & GW springs in the Rear. AMC20 with G2 1 piece chromos trussed, Dana 30 with G2 chromos and 760x ujoints and MM Stainless Hubs, Geared 4.56. Tom Woods shafts, Metal cloaks, Caged, 37" Toyo MTs.
    Yep, In my hotrod years I had more than one Torque Converter (TC) trash out on me destroying my tranny. The early 700R4s were known for this as well as being the quickest Automatic tranny of its day. The end result is generally caused by excessive heat. A tight TC creates less heat, but poorer performance, so loosen things up a bit and you get better performance but create more transmission fluid heat which destroys the TC, and when it comes apart all the trash goes into the tranny causing it to fail. The Easiest fix after installing a loose TC is to add the largest tranny fluid cooler you can fit. Isn't 2012 the year they changed to the more powerful 3.6L? This probably had something to do with your TC failure providing they stayed with the same tranny setup, but since it made it through the warranty period and it would not be cost effective for them to warranty every 2012 tranny, I think you're out of luck in getting them to replace it, and they will probably never acknowledge any defective engineering.

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