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Engine noise

Discussion in 'Performance' started by dcgolfer01, Nov 29, 2023.

  1. Nov 29, 2023 at 5:36 PM
    #1
    dcgolfer01

    #1
    dcgolfer01 [OP] New Member

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    Motor sounds like it is making a kind of knocking noise when it starts but goes away. I haven’t lost power when accelerating, and for the life of me can’t figure it out. It isn’t the normal sounding loud fan noise like usual.
     
    dcgolfer01, Nov 29, 2023
    #1
  2. Nov 29, 2023 at 5:40 PM
    #2
    Borracho Loco

    #2
    Borracho Loco My 4Runner identifies as a Prius!

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    Oooh look, another mod.....

    If you could post a video so we can hear the sound it's making, that would help.
     
    Borracho Loco, Nov 29, 2023
    #2
    RumHamRunner73 likes this.
  3. Nov 29, 2023 at 6:47 PM
    #3
    RumHamRunner73

    #3
    RumHamRunner73 Dead on with a zero

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    Welcome to the forum.

    I am assuming you have verified the correct oil level in your 4runner and haven't had any major repairs recently performed.

    Just trying to help narrow down what issue, if any, you may have.
     
    RumHamRunner73, Nov 29, 2023
    #3
    Trail Runnah and Technologic80 like this.
  4. Nov 30, 2023 at 7:33 AM
    #4
    Trail Runnah

    #4
    Trail Runnah New Member

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    I wouldn't worry, a properly running 4.0 sounds broken. For months I was convinced a valve or something was about to shoot through the hood, but so far so good at 164k and counting.

    These are just loud, rattly engines.
     
    Trail Runnah, Nov 30, 2023
    #4
    TrailSpecial22 likes this.
  5. Nov 30, 2023 at 8:06 PM
    #5
    dcgolfer01

    #5
    dcgolfer01 [OP] New Member

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    Yes I have
     
    dcgolfer01, Nov 30, 2023
    #5
  6. Nov 30, 2023 at 8:07 PM
    #6
    dcgolfer01

    #6
    dcgolfer01 [OP] New Member

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    Im trying but it won’t upload
     
    dcgolfer01, Nov 30, 2023
    #6
  7. Nov 30, 2023 at 8:07 PM
    #7
    dcgolfer01

    #7
    dcgolfer01 [OP] New Member

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    where do I get one of those?
     
    dcgolfer01, Nov 30, 2023
    #7
  8. Dec 1, 2023 at 12:57 PM
    #8
    Rob41

    #8
    Rob41 Veteran

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    If you aren't able to figure out what's going on you should consider a visit to the dealership. You shouldn't be hearing a knocking noise when it starts up.I would caution against driving it until you've determined what the cause is in the event that it leads to possible serious damage.
     
    Rob41, Dec 1, 2023
    #8
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