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Thread: Diesel fume smell at start up

  1. #1
    Regular Member lee gsi's Avatar
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    Vehicle : Signum

    Trim : Design

    Engine : 1.9 CDTi

    Year : 2005

    Default Diesel fume smell at start up

    When I start the car quite often I get a diesel fume smell at start up (Can smell it through the heater vents).

    Only thing I could find was one of the breather hoses that goes into the black canister under the inlet manifold isn't as tight as I thought it should be (It just pushes into the canister).

  2. #2
    Ex-Staff Full Member John LE's Avatar
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    Vehicle : Facelift Insignia/Corsa D

    Trim : LE/VXR

    Engine : 2.0 cdti/1.6 Turbo

    Year : 13/07

    Default

    Check that the exhaust flexi isn't knackered

  3. #3
    Regular Member lee gsi's Avatar
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    Vehicle : Signum

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    It doesnt do it all the time.

    Just at start up.

  4. #4
    Regular Member nutron's Avatar
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    Vehicle : Vauxhall

    Trim : very

    Engine : Z19DTH

    Year : Nosey

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    Are we talking about fumes like from a can of diesel or exhaust gasses? If it's fumes, you must have a diesel leak obviously. Exhaust gasses could be comming from a break in the exhaust system, a knackered gasket, one of the manifold nuts/dowels working loose, a cracked manifold...

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    I get this at start up but only on cold days

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    Leaking EGR system is favourite (if it's an exhaust gas smell). They tend to get taken to bits quite frequently and diesels use EGR at start-up, unlike petrol engines.

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    Regular Member Craig1985's Avatar
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    Mine is the egr as it only done it since cleaning it. I reused old gasket

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    Regular Member sloper's Avatar
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    Ive got the same problem, and the fumes smell continues through the vents when im using the heater, im suspecting a leak on the swirl valves on the inlet manifold

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    sometimes on a frosty day, i've obviously got blowers on full to defrost,

    if the wind is blowing fumes back towards front of car, they'll be sucked back in through the venting system...

    i'd also check EGR gaskets and make sure that bolts are tightened fully, although if there is a leak in the egr system, i'd expect some reduction in performance as well

  10. #10
    Regular Member sloper's Avatar
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    Spent 4.5hours in the car going nowhere other day cos of the snow chaos, nearly was gased, had to use recirc' on the vents.
    Had a nosey under the bonnet yesterday while engine running,cant smell fumes above EGR, but can above inlet manifold, put some washing up liquid over the far left valve and it was bubbling.

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