How to Diagnose a Blown Out Head Gasket

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How to Diagnose a Blown Out Head Gasket
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The head gasket forms a seal between the engine
block and the cylinder head of your car.
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Their main function is to keep the heat and
high-pressure combustion gases as well as the
coolant intact within the system.
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The frequent exposure to extreme temperatures
makes the head gasket vulnerable to wear, and may
even blow out.
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As the gasket is not visible, it is very hard to
diagnose a blown out head gasket.
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So, it is required to know the common signs of a
blown out head gasket, which are
Overheating of engine
Bubbles in radiator
Milky engine oil
Bad spark plug
White smoke from exhaust
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Overheating of engine
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The engine starts to overheat after long drives
because of the lack of coolant which makes the
radiator inefficient.
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Such overheating results in damage to the seals
and gaskets which causes leaks in your engine.
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Bubbles in radiator
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Leakage of exhaust gases into the coolant can
cause bubbles in the radiator.
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Actually, these bubbles are exhaust gases that
force their path into the cooling system during
the combustion process.
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Milky engine oil
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When the coolant gets mixed with the engine oil,
the color of the oil turns to milky white.
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You can easily check the color with the help of
the dipstick and by looking around the engine oil
cap.
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Bad spark plug
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Burning of coolant in the combustion chamber
damages the spark plug of your car.
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Carbon gets deposited around the ground strap and
the electrode, which is a possible sign of a
blown out gasket.
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White smoke from exhaust
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When the coolant burns along with the combustion
gases, then it results in a cloud of white smoke
from the tailpipe.
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The white smoke can be easily differentiated
from moisture during a cold start by a sweet
smell.
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