Bad head gasket symptoms, Head gasget bad? Easy way to check- Chevy Uplander

[0815Mark]

Quote :"This is what happens when you do not change your vehicles Antifreeze every 2 years. "

>>>>> ??

Based on what scientific explanation ?

[kelvinfeliciano]

this test is not saying anything. use better a combustion tester. a leak pressure tester, coolant pressure tester. they are diff methods but this one is not one



[wallyspeeds]

Yes. C02 gases or combustion gases enter the cooling system- I have seen two causes for this one is the head gaskets are eaten away from acidic antifreeze. 2nd over time the aluminum heads lose their seal against the head gasket- I saw another video that uses a rubber stopper with a hose into a container of water to watch the bubbles. I like that idea also to check for C02 gases

[ahausheer]

so the bubbles were combustion gasses getting into the coolant?

[MrSoulTagg]

whats the point?