1999 Vito 120, tickover issue?

Discussion in 'Engine' started by Pipetech, Apr 23, 2014.

  1. Pipetech

    Pipetech New Member

    Apr 12, 2014
    Hunmanby Nth Yorkshire
    ML270 cdi
    Hi All
    First of all my van runs great, no smoke, nothing untoward.
    My issue is this, when i start the vehicle cold hot or anytime the engine sounds a bit rough? but after a few seconds the idle speeds up a few hundred revs and engine is much quieter?
    I have also notices that when it is started before it goes quiet, pressing the throttle does nothing? but revs as normal when idle increases.
    Any ideas??????

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