Noises under the bonnet

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  • NickGrasse
    S2Forum Buff
    • Sep 2004
    • 41
    • Country: United Kingdom

    #1

    Noises under the bonnet

    A question for you lot out there -
    What's the sort of fluttering noise I hear when I take my foot off the throttle and should I be worried about it? is it something to do with the turbo dump valve?
  • s2-1.5bar
    S2Forum Enthusiast
    • Sep 2004
    • 193
    • Home: Lithuania Current: United Kingdom

    #2
    Sounds like DV, thats normal

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    • Graham
      S2Forum Extremist
      • Jul 2003
      • 1622
      • Home: United Kingdom Current: Australia

      #3
      There is some noise off the recirc valve (dump valve) which is perfectly normal, but there is a lot of causes for noise under the bonnet, you might have a leak. Without listening it is hard to diagnose a problem. Install a boost gauge and see what the turbo is doing, or use a test kit to see if there is a leak.
      graham
      Everything should be made as simple as possible, but not simpler.--:Albert Einstein

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