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air bubbles will be released by means of the overflow on the filler tank.
A cracked head or bad head gasket or both.
The overflow tank is either cracked or its overheating and leaking from the cap
you put way do much water in or you forgot to get the air bubbles out of it
You probably have a bad head gasket or a cracked head. If your getting coolant mixing with motor oil and you continue to run it you will destroy the engine soon.
A gas tank can indeed overflow if it is not full. A gas tank can overflow if the pressure inside of it is too high.
check the small hose that goes to the upper side of the overflow tank. The fitting that is on the side of the water pump housing that connects that small hose to the overflow tank plugs. clean it out and see if that takes care of your problem. It worked for me I had the same problem. it plugs and the air cant escape causing an air pocket that cant get out.
All engines should have an overflow tank to prevent air bubbles from limiting the cooling capacity.
If the tank bubbles all the time the engine is running and is black dirty inside the head gasket has failed or a similar failure like a cracked cylinder head. If it only bubbling after the engine is overheated, the system needs to be checked for other failures.
You are most likely overheating.
Well you take bubbles and but them in a tank It's true i tried.
Engine overheating will cause the anti-freeze to surge into the overflow tank. A blown head gasket will also cause the anti-freeze to surge into the overflow tank.