Engine clatter on startup

Discussion in 'Gen 3 Prius Main Forum' started by Lakerat, Oct 4, 2020.

  1. Lakerat

    Lakerat New Member

    Joined:
    Oct 4, 2020
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    Location:
    Sherman, texas
    Vehicle:
    2014 Prius
    Model:
    One
    I have a 2014 Prius base model that has a startup engine knock to address this I replaced the coil packs, sparkplugs , and injectors t were professionally cleaned and I still have a startup engine knock I am stumped with this problem any help will be appreciated. Thanks
     
  2. tvpierce

    tvpierce Senior Member

    Joined:
    Apr 27, 2015
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    861
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    Location:
    Maine
    Vehicle:
    2013 Prius v wagon
    Model:
    Five
    Welcome.

    Search "misfire on start up" and you'll get losts of reading. Clean the entire EGR circuit (cooler, pipe, valve, and small ports in the intake manifold), install a oil catch can, and see if that helps.
     
    scona likes this.
  3. taxidriver50005

    Joined:
    Jan 3, 2017
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    Location:
    GB
    Vehicle:
    2012 Prius
    Model:
    Excel
    Does it rattle every start up or only acationally

    Posted via the PriusChat mobile app.
     
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