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pinking ??

Discussion in 'Audi S4/A4/A4 Cab (B7 Chassis)' started by moanjam, Mar 25, 2012.

  1. moanjam
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    moanjam New Member

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    [Mar 25, 2012]
    getting a pinking/light rattling from my 2.0 tdi engine when i give it a bit acceleration just seams to happen through mid range and stops as soon as you lift your foot and is not there at tick over ? is this on all tdi's as i've never drove another to compare, cheers in advance
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  3. moanjam
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    moanjam New Member

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    [Mar 28, 2012]
    :tumble:
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  4. CHEZ
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    CHEZ moderately amusing Supporter

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    [Mar 28, 2012]
    pinking is usually associated with petrol engines mate!
    timing mainly, and trying to mentally picture what your describing is pretty difficult!
    from what your suggesting i am guessing its a metallic rattle noise rather than vibration at any revs other than tick over?
    is this correct?
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  5. moanjam
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    moanjam New Member

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    [Mar 28, 2012]
    yes mate a metallic rattle like just like pinking but obviously its not with it being diesel just seams to be in the mid range of acceleration whilst driving in gear , it goes when you lift off the pedal or when you accelerate harder ?
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  6. CHEZ
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    CHEZ moderately amusing Supporter

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    [Mar 28, 2012]
    not wanting to assume and condemn anything mate but,
    what is the year, model of car concerned? (a4, a3 etc)
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  7. moanjam
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    moanjam New Member

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    [Mar 28, 2012]
    its an a4 cab 2007 57 plate 25,000 miles
    Last edited: Mar 28, 2012
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  8. CHEZ
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    CHEZ moderately amusing Supporter

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    [Mar 28, 2012]
    well i was going to suggest the oil pump/balance shaft problem associated with earlier models, but, thankfully in your case i dont think is the problem unless you have the dreaded chain driven oil pump which i am 99% certain you dont!
    this "pinking" is something else, and sadly cannot think what it is!
    i am sure somebody will be here to instruct/advise mate!
    sorry i could not be any good, but i dont want to just guess! as that would not be helping anybody!
    good luck fella!
    and let us know how you get on!
    knowledge is power as they say!
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  9. moanjam
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    moanjam New Member

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    [Mar 28, 2012]
    cheers for your replies Chez :icon_thumright:
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