jeremyjeep
Well-Known Member
Tell them you want the loud fan fixed with TSB 18-041-18 Rev B — Flash: Powertrain and System Improvements (PCM Reprogram). It also fixes some of the idling problems.Same for me. Its in again and they say its perfect....annoying!
https://www.jlwranglerforums.com/fo...reprogram-september-7-2018.15739/#post-422669
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