Question about 2004 Subaru Forester

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Rad fluid loss with no leak ...

04 forester seems to be using coolant up but i have no leak ...?

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  • dondunn Jun 01, 2009

    what if the rad is steaming ..?? still no leak though ..?

  • dondunn Jun 01, 2009

    stop leak was added this morning . if it is an ongoing problem i will burn the car !! lol no i can't do that ...
    thanks for your help and i will keep you posted.

  • Samuel Charles Spriggs May 11, 2010

    If there is no evidence of an external leak, then I would suspect a blown head gasket.



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Check your engine oil. see if the oil level is higher them usual and the condition of the oil. The oil should not like brown and milky in colour,  check under the oil cap to see for water condensation and the PVC valve to see if there is any sludge formation.
If there is then your coolant is leaking in to your engine which may mean a bad intake gasket. 
Goof luck and keep me posted.

Posted on Jun 01, 2009

  • Harvey N Tawatao
    Harvey N Tawatao Jun 01, 2009

    Radiator antifreeze 101. There should be a 50/50 mixture of antifreeze and water in your cooling system, if you not sure how to measure that, you can buy a 50/50 pre mix antifreeze for your cooling system.

    If you have more water then antifreeze in your coolant,it will boil over and evaporate in the system like a kettle boiling water. The steam with push though the radiator cap and out the over flow canister. If you have more antifreeze then water, the cooling effect of the system will not be at it's peak performance. Antifreeze alone can not exchange the heat transfer fast enough and soon the engine will run hotter.

    Lets start from scratch if your have only been adding water, change the thermostat first and flush out the cooling system then re fill with 50/50 mixture of antifreeze, if you like you can also add a bottle of radiator stop leak and see what happens. Keep an eye on the system after you have done this and hope you'll not lose any more coolant.

    Note; your thermostat needs to be changed since you said there is steam coming from the radiator cap, oh and almost forgot the radiator cap will need to be replaced too. The cap needs to hold 8 pounds of pressure and extra heat promotes cap and thermostat failure.

    Keep me posted, be glad to help you.



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