transmission temp sensor
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Thread: transmission temp sensor

  1. #1
    Newbie
    Join Date
    Dec 2017
    Location
    10580
    Posts
    3
    Year
    2018
    Make
    optima
    Model
    optima

    transmission temp sensor

    Have a 2018 Optima. For over a year, it has been jerking when I break. An internet search says that a problem a with the transmission temp sensor is common in these vehicles and probably needs to be replaced. Brought it to dealer who said he could not replicate the jerking so he can't fix it. I usually have to drive the car at least 5 min, some times a bit longer for the jerking to start. Going back to dealer for regular maintenance next week. Any ideas on how to get them to fix it? It is really annoying and a real problem for me with a car that I like otherwise.

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  3. #2
    OptimaForums Veteran
    Join Date
    May 2015
    Location
    NJ
    Posts
    1,070
    Year
    2011
    Make
    Kia
    Model
    Optima
    Trim
    EX-T
    I would say that if the ATF temp sensor is gone you'll experience more than just a harsh downshift.
    Ask them to read the atf temp and see if within range. There are available tools on the net that can be downloaded so that you can read the temp.

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