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Thread: signum 1.9cdti sounds like a turbo petrol why??

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    Regular Member bangty 1's Avatar
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    Default signum 1.9cdti sounds like a turbo petrol why??

    hi all was driveing home for lunch and my signum now sounds like a petrol turbo (whooshing sounds like a dump valve) do you think it could be my flexi pipe?? thanx

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    Regular Member Derek Mc's Avatar
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    Sounds like something has let go thats for sure as the boost bypass should be inaudible in the car,,,, sadly I would like a little bit of a whoosh myself at times

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    Regular Member bangty 1's Avatar
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    dont get me wrong sounds good but ent ment to but i ent lost power and ent got any lights on the dash so im at a loss but theres something up everyones sed what have i done to my car it sounds like a scooby?!?

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    Regular Member nokiaman1978's Avatar
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    think the vec has a pressure release i get that noise as well, and car goes like s**t of a shovel.

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    Regular Member the-wizard's Avatar
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    Vehicle : vectra-c

    Trim : sri

    Engine : cdti

    Year : 2004

    Mileage : 98,000

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    From what you say it sounds quite load!, that wouldn't be normal although cdti's do make a little whoosh & wheeze noise, yours doesn't sound right.

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    Regular Member bangty 1's Avatar
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    nar it turns heads it that loud but ent got a clue what it is but it still got the power there and mnes a signum if that makes a diff

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    Regular Member Big Sig's Avatar
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    It could also be the dpf on a regen. What was your inst mpg like at tickover?

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    Regular Member bangty 1's Avatar
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    didnt look to be honest but it ent a regen (i think no smoke) but it was like it 20 miles later and still is now but big stan you maybe right what do i know

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    Regular Member Big Sig's Avatar
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    I doubt you will se much if any smoke. Its supposed to go un-noticed by the driver but they do make the exhaust sound a whole lot more throaty.

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    Regular Member Turbomanrony's Avatar
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    have a look at the intake pipe on the airbox mine was off and it was churffin very loud.

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