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dump valve

  1. 2.2L Duratorq TDCi Diesel Engines
    hi guys recently my i am getting a whoosh from the turbo when i back off the accelerator, quite similar to turbo chatter/dump valve. you can also hear it coming out of the back of the exhuast. any ideas what this could be?? hoping its not going to be the turbo as its come at the worst...
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