Tapping Knocking anyone know?

Discussion in 'Prime Care, Maintenance and Troubleshooting' started by dig4dirt, Oct 1, 2025 at 1:58 PM.

  1. dig4dirt

    dig4dirt MoonGlow

    Joined:
    Apr 6, 2012
    1,151
    741
    0
    Location:
    Lancaster Co PA
    Vehicle:
    2014 Prius c
    Model:
    Two
    I have this tapping/knocking happening

    This only happens during the warmup stages.
    Once warmed up, it does not happen.
    Also, if there is any load on engine during warmup, it does not happen.

    Could this be lifters, rockers, valves?
    I would be interested in replace the lifters, but I just don't know if that is what it is.


    I recently purchased this car just shy of 200k miles. it is a 2017

    - YouTube <<< yt shorts link
     
    #1 dig4dirt, Oct 1, 2025 at 1:58 PM
(You must log in or sign up to post here.)