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Thread: Stiff Radiator hoses

  1. #1

    Stiff Radiator hoses

    Recently both my radiator hoses have become stiff (pressure), ive replaced the radiator cap but its made no difference.

    The car hasnt over heated, and drives perfectly normal, no oil and water have mixed and it doesnt use coolant.

    The only thing I have noticed its not pulling or pushing coolant into the over flow tank.

    Could this be a stuck thermostat? or Any ideas as to what could be the cause?

    Its a b20 engine, thanks in advance!

  2. #2
    Bump!

    I've noticed on the coolant reservoir neck there is two holes, I've removed and emptied the reservoir, I then closed the cap and tried blowing in it from the top and air escapes under the cap.

    Could this be the cause? Is the reservoir not supposed to be pressurized and not allow air to escape?

  3. #3
    The hoses shouldbe stiff/hard when at operating temperature.... ( soft hoses indicate a leak or airpockets in the cooling system, which is wrong)
    The expansion tank is not a sealed unit. it has to breathe, hence the two holes.
    info@jdmtuning.co.za
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