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Thread: 2.2DTI losing power and knocking noise

  1. #1
    Regular Member Celes's Avatar
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    Sep 2007
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    Slovenia, Koper
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    Vehicle : Opel Signum

    Trim : Sport

    Engine : 3.0 CDTI

    Year : 12/03

    Default 2.2DTI losing power and knocking noise

    Our 2.2DTI is losing power Lately I noticed it doesn't accelerate like it used to and the engine seems to knock a lot more than before.
    Any idea? Fuel consumption is also down to 31mpg mixed driving motorway/town.

  2. #2
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    Hertfordshire
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    Celes, have you had any luck finding the cause of your problem? I only ask as I have the same engine as you and was interested.

  3. #3
    Regular Member Celes's Avatar
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    Slovenia, Koper
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    Vehicle : Opel Signum

    Trim : Sport

    Engine : 3.0 CDTI

    Year : 12/03

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    Replaced fuel and air filter...seems to have done the trick. Mind you, it's still not perfect. Might need to clean the inlet manifold.

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