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Thread: Engine knock - 2015 high mileage Micra - Normal ??

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    Engine knock - 2015 high mileage Micra - Normal ??

    Hello,

    I'm thinking of buying a used 2015 Micra with manual trans and 145k km.

    At the end of my test drive, while re-entering the person's driveway, I noticed a slight "knock" sound from the engine at low rpm, sort of like a "Tok, Tok, tok". Have no idea what causes this, but it's as if one of the four cylinders was hitting the top part of the cylinder at each go around.

    It's not a loud sound and I'm even wondering if it's caused by something completely different than a piston knock or if it's even just a normal sound of this engine at low rpm ?

    I haven't bought the car, but just wondering if anyone here has an idea what this sound is caused by and if it's of concern...??

    I will of course take to a Nissan dealer to have it checked out if I decide to buy it, but just wondering if it's a common problem before spending money on a full check-up at the dealer.

    Thanks for any ideas or suggestions !

    Marc



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    Valve tapping from the cam shaft?

        __________________________________________

        click to view fuel log View my fuel log 2015 Micra SV automatic: 10.0 L/100 km ... 28.4 mpg (Imp) ... 10.0 km/L ... 23.6 mpg (US) ...


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    Hi Tipit, welcome to the club!

    Let us know what your mechanic says! 'Some' early Micras apparently had bearing issues that 'could' be what you're describing.

    Check this out https://micra-forum.com/showthread.p...=test#post8956
    Last edited by Vaszya; 05-26-2021 at 10:13 AM.

        __________________________________________

        click to view fuel log View my fuel log 2019 Micra S manual: 7.7 L/100 km ... 36.9 mpg (Imp) ... 13.0 km/L ... 30.7 mpg (US) ...


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    MetroMPG (05-31-2021)

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    Marc - what did you decide?

    I would say "Tok, Tok, tok" is not normal. I think Vaszya is right to point to the bearing issues some early Micras had.

    The only unusual noise an otherwise healthy Micra engine makes the fuel injectors are slightly noisy. The engine has 2 injectors per cylinder, and I found I could hear them going "click click click click" at idle.

    Darin


        __________________________________________

        click to view fuel log View my fuel log 2015 Micra S manual: 5.0 L/100 km ... 56.5 mpg (Imp) ... 20.0 km/L ... 47.0 mpg (US) ...


  6. The Following User Says Thank You to MetroMPG For This Useful Post:

    Vaszya (05-31-2021)

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