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What’s this noise? Lifter?

Discussion in 'General Tundra Discussion' started by Hightide, Aug 15, 2020.

  1. Aug 15, 2020 at 9:27 AM
    #1
    Hightide

    Hightide [OP] Kinda’ new, but old

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    Lots of do-dads.
    2016 5.7 flex
    Only does this periodically on cold start after idling for a couple of minutes.

    Thought it was a tensioner or pully but have changed those and belt.

    It’s loudest on the drivers side.

    https://youtu.be/frHsOj0uRDM

    After belt and tensioner change.

    Still making the same noise for 10-30 seconds after cold start up.

    https://youtu.be/ppXN1qzG0-w
     
    TokerJoker likes this.
  2. Aug 15, 2020 at 10:08 AM
    #2
    TokerJoker

    TokerJoker ΜΟΛΩΝ ΛΑΒΕ

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    None.....yet
    :notsure:Its possible but in all my cases the lifter never stops making noise. Could be something that has shrunk and needs heat to expand, what that would be i am clueless :notsure:
     
    Hightide [OP] likes this.
  3. Aug 15, 2020 at 11:49 AM
    #3
    JohnLakeman

    JohnLakeman Burning Internet Daylight

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    TRD Pro grille, 2018 LED Headlights, Undercover Flex bed cover, Neoprene seat covers, Bed/tailgate mats, Power tailgate lock, auto headlights, illuminated key switch
    Valve train noise on start-up is a common complaint with UR engines. It's normal. Rather than continue to change parts to eliminate the noise, use a mechanics stethoscope to localize it:

    https://www.amazon.com/Lisle-52500-...ocphy=9028270&hvtargid=pla-572736246467&psc=1

    Or...You can just do what others have done: Try a different oil. Mobil1 0W20 may be more susceptible to valve noise than Toyota GMO, or, try a slightly heavier viscosity (5W30). On my last change, I switched to 5W30, not for noise, but because in Texas' climate a slightly higher viscosity oil isn't going hurt anything.

    The Owner Manual tells owners that they can use 5W20 if 0W20 is not available, but that they should change back to 0W20 as soon as possible. The UR engines were probably originally designed (2006) for 5W30 oil, so it's not like 5W30 oil will damage the engine. Corporate wants owners to help them keep promises made to the government to maintain fleet fuel efficiency at pledged level.
     
    Last edited: Aug 15, 2020
    Hightide [OP] likes this.
  4. Aug 15, 2020 at 12:50 PM
    #4
    Vizsla

    Vizsla New Member

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    Sounds like a bad timing chain tensioner, would get that checked if it continues.
     
    Hightide [OP] likes this.

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