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Thread: How to remove boost sensor on 3.0 CDTi

  1. #1
    Regular Member Celes's Avatar
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    Vehicle : Opel Signum

    Trim : Sport

    Engine : 3.0 CDTI

    Year : 12/03

    Default How to remove boost sensor on 3.0 CDTi

    The manifold is off now and I was thinking I could give the boost sensor a brake cleaner squirt. Trouble is the screws holding the sensor are SO TIGHT I can't take it out I have tried some anti-rust thing lol but it still won't work
    Help me please

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    The boost sensor being the little black box that's fastened to the manifold by two bolt/screws ?

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    Regular Member Celes's Avatar
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    Vehicle : Opel Signum

    Trim : Sport

    Engine : 3.0 CDTI

    Year : 12/03

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    Quote Originally Posted by diesel dog View Post
    The boost sensor being the little black box that's fastened to the manifold by two bolt/screws ?
    YES!
    They won't budge...

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    Regular Member steve's Avatar
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    Possibly try a longer bar on your ratchet handle help the leverage.

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    Regular Member Penfold101's Avatar
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    Soak in WD40 for several hours and get more leverage as above. However, be awar of shearing the bolts and the problems that could cause...

  6. #6
    Regular Member Celes's Avatar
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    Vehicle : Opel Signum

    Trim : Sport

    Engine : 3.0 CDTI

    Year : 12/03

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    Quote Originally Posted by Penfold101 View Post
    However, be awar of shearing the bolts and the problems that could cause...

    They are a bit ruined already

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    Regular Member Penfold101's Avatar
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    Quit while you're ahead....?

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    The ones on mine were really easy,but it had previously been changed for another new one a couple of years ago,along with the turbo,which didn't actually need replacing,but still..I'm not complaining when it's for nowt.

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    Regular Member Celes's Avatar
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    Vehicle : Opel Signum

    Trim : Sport

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    Year : 12/03

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    I guess I'll leave it as it is.
    Better like this then a spanner light lol

  10. #10
    Full Member Big Sig's Avatar
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    Only other thing to do is drill the heads off, remove the valve and try to get some mole grips on them hoping they will come out. Knowing where it is and how hard it is to get to I think I would leave it there.
    Now I need a turbo to keep up!

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