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Clicking/ popping noise after motor is turned off

Discussion in '5th Gen 4Runners (2010-2024)' started by PtGt, Sep 17, 2023.

  1. Sep 17, 2023 at 5:57 PM
    #1
    PtGt

    #1
    PtGt [OP] New Member

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    2018 4runner

    Drove home from work just now. Usually it makes a little tapping noise then subsides. Before walking in the house today heard the crackling/ popping noise but it sounded like popcorn heating up.

    Could that be from the heat of the motor & exhaust cooling down? Video linked of noise:

    https://youtube.com/shorts/ta3HyAGem-c?si=9lTR_7xBMbzSWT0x
     
    PtGt, Sep 17, 2023
    #1
  2. Sep 18, 2023 at 12:18 AM
    #2
    Slopemaster

    #2
    Slopemaster Slope Survivalist

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    265-70-17 Ridge Grapplers, TRD Pro rims, 3M precut bra, N-Fab nerf/steps
    What was the outside temperature?
     
    Slopemaster, Sep 18, 2023
    #2
  3. Sep 18, 2023 at 4:38 AM
    #3
    PtGt

    #3
    PtGt [OP] New Member

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    100ish degrees. Phx, AZ
     
    PtGt, Sep 18, 2023
    #3
  4. Sep 18, 2023 at 6:14 AM
    #4
    3JOH22A

    #4
    3JOH22A Toyota Gigolo

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    Sounds like the catalytic converters and heat shields crackling due to thermal contraction. Very common on all vehicles made in the past 25+ years.
     
    3JOH22A, Sep 18, 2023
    #4
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