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Thread: 2018 CX-9's Engine Speed Surge Upon Cold Start

  1. #1
    Registered Member

    2018 mazda cx9

    Join Date
    Oct 2017

    2018 CX-9's Engine Speed Surge Upon Cold Start

    Hi everyone,

    Upon cold start up at 65F, my CX-9's engine speed surges for a second to ~1600RPM from the ~1400RPM warm-up speed. I have been having this problem with my CX-9 from every cold start for a few weeks now as I don't recall it doing this in the past. After the engine is warmed up, the car behaves normally. Please check out the video below. Has anyone had this issue? Should I be concerned? Thank you.

  2. #2
    Registered Member

    2018 CX9 Sig

    Join Date
    Oct 2018
    DC Metro
    Yes, that is my experience as well. I usually wait until it goes below 1K rpm prior to departure. Hope this helps.

    Peace and blessings,


  3. #3

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