03 slamming 2-3 shift

Discussion in 'Hyundai Sonata' started by jus, Apr 29, 2018.

  1. jus

    jus

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    Just completed a 4000 mi trip, and started experiencing a violent 2-3 upshift about 3k miles into it. Also, and maybe importantly, had to reset the eng chk. light several times (didn’t have an ODBII reader). Much of the driving was 75-80 mph (new speed limits, I guess), and in warm to hot weather. Car had 107K miles before the trip.
     
    jus, Apr 29, 2018
    #1
  2. jus

    avisitor

    Joined:
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    Location:
    Albany, NY
    Don't know enough about trannys to give any advice
    Except to take it a good garage that does tranny work.
     
    avisitor, Apr 30, 2018
    #2
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