Guess the sound

  • ZaffyB's Avatar
    Zafira b 1.6 petrol 96k

    My zafira is making this exact noise when driving

    http://youtu.be/GmHB5xJlc_8

    It happens after the clutch comes up on load.

    No error codes.

    Never does it in the first 10 mins of driving on a cold engine.

    Local garage can’t figure it out.

    Last 9 months of jobs done on the car

    New gearbox / slave.
    egr channels cleaned
    new spark plugs (GM ones)
    oil / filter / air filter
    New delphi coil pack
    oil pump gasket
    front cam shaft seals
    cam cover
    New thermostat / wahler one with new sensor in it.
    front 02 sensor changed was causing idle issue, new one cured it. Was sluggish
    EVAP valve - Miss diagnosis from garage who thought my idle issue was this and failed to test old one.
    Cambelt kit

    STFT is between -0.8 / -1.6 (switching)
    LTFT is 8.6
    Last edited by ZaffyB; 17-06-22 at 07:49.
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