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Thread: Throffing in water header tank

  1. #1
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    Vehicle : Signum 1.9cdti

    Trim : Elite

    Engine : 1.9

    Year : 2006

    Default Throffing in water header tank

    Hi all I come across a problem in my signum cdti 120 bhp.124k Miles.
    i was cruising at 80mph and my water light come on dash so I pulled over to see that there was throffing in the header tank.the temp gauge had stayed the same like it always does and the water was warm as I could put my finger in it.there is no oil contamination there but am I right in thinking that there is possibly exhaust gasses mixing in there from the head leaking.
    i turned the car on and of and drove another 20-30 miles no problem and stopped to check the water and everything was back to normal with no throffing and temperature staying the same.i havenít lost no coolant and no pressuring either.
    could it be rabies 😆
    anyone had similar or no of anything.im doing the sniff test at weekend to see what is on but wonít bother if itís head gasket.

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    Midlands - Head case Organiser Dog_Book's Avatar
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    Vehicle : Vectra Estate

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    Oh dear sounds ominous
    Vectra VXR estate 2007 Sapphire Black
    Teapot Tuned 245/300
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    Vehicle : Signum 1.9cdti

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    Frothing

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    Regular Member Teapot's Avatar
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    Vehicle : Signum

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    Default

    Most likely the EGR cooler has ruptured, allowing exhaust gasses into the cooling system. However if the coolant pump hasn't been changed lately it's well worth checking and replacing it (along with the timing belt), because it has been known for the impeller to come loose from the shaft.


    If it turns out to be EGR cooler, choices are to fit a new EGR cooler, or fit a blanking plate at both ends of the EGR circuit and disable the EGR system in mapping.

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    Still ongoing at the moment.it comes and goes.i have blanked the egr on one side.im getting no reading on the temp gauge.would this be a reason for it to be playing up?

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    Think I may of solved it.you wouldn’t think it but after driving a 80
    mile round trip I had no froth.i replaced the header tank cap thinking for the sake of £4 from
    gsf what harm
    can it do and it worked.it hasn’t lost no coolant either.im replacing water temp sensor to so fingers crossed it has cleared.

  10. #8
    Regular Member fatfred's Avatar
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    Quote Originally Posted by Ash-signum View Post
    Think I may of solved it.you wouldn’t think it but after driving a 80
    mile round trip I had no froth.i replaced the header tank cap thinking for the sake of £4 from
    gsf what harm
    can it do and it worked.it hasn’t lost no coolant either.im replacing water temp sensor to so fingers crossed it has cleared.
    Quite possibly the system was losing pressure hence the water boiling. Water under pressure boils at a higher temperature hence the reason for a pressurised cooling system.

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    Midlands - Head case Organiser Dog_Book's Avatar
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    Quote Originally Posted by fatfred View Post
    Quite possibly the system was losing pressure hence the water boiling. Water under pressure boils at a higher temperature hence the reason for a pressurised cooling system.
    Physics
    Vectra VXR estate 2007 Sapphire Black
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  13. #10
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    The water didn’t boil.

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