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Thread: Heater on hot air is cold?

  
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    Heater on hot air is cold?

    Hi all,

    Bit of a problem that developed last nite after a 500mile round trip my heaters are just blowing out cold hair even on hot now the ecpanstion tank was boiling (water bubbling) temp never goes above half way and performance seems the same anyone have any ideas?
    Thats How I Roll

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    anyone????
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    what car and engine do you have

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    o sorry astra gsi mki 4
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    what about the water pipes on the car ?
    first thing would be to look at them see if they are blocked
    and remove an test the thermostas is still working its easy to remove from the engine

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    i havnt checked them tbh and another thing my expanstion tank is bubbling up is this related?
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    bttt........
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    up she goes anyone?
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    You say you checked 'them', does mean you did take the thermostat out of the car and check it works ok? Also, does your temprature gauge work ok, and car goes upto normal temprature?
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    yea thermostat seems fine may buy a new one to be sure and temp goes up to normal and goes down a bit now and then
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