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Do you need to bleed coolant after replacing car expansion tank ? Watch

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    Hey

    I replaced my coolant tank on my Focus as old tank was leaking.

    I put on a brand new replacement tank but notice every few days the level of water seems to fall slightly.
    Checked for leaks and could find none, besides I replaced several hoses a few months ago.

    There seems to be no signs of HG failure either.



    I just wondered, should I bleed the coolant as I only noticed it dropping since replacing the tank. How do I bleed it, do I just remove radiator cap and turn heat on full for several minutes ?

    The hose that goes to the radiator tank, looks like bubbles flowing via it to coolant tank, I'm guessing it's air
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    (Original post by I love life)
    I just wondered, should I bleed the coolant as I only noticed it dropping since replacing the tank. How do I bleed it, do I just remove radiator cap and turn heat on full for several minutes ?
    Basically, yes.

    If you continue to have issues I would makes sure that you have the correct cap for your engine as a different cap may be rated for a different pressure. If you are still losing coolant, take it someone to get checked.
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    (Original post by Talon)
    Basically, yes.

    If you continue to have issues I would makes sure that you have the correct cap for your engine as a different cap may be rated for a different pressure. If you are still losing coolant, take it someone to get checked.
    Cap is correct and brand new.

    Also , water runs through overflow pipe into coolant tank
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    Depends on the car. Some are self bleeding some are not.
    A qualified mechanic would know what to do, but you will keep taking this knackered car to cowboys.
 
 
 
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