The purpose of the head gasket is to seal the combustion chamber, coolant passages, and engine oil passages. It prevents them from mixing together or leaking out of the engine.
A blown head gasket is when the gasket that secures the cylinder head to the engine block has failed. Coolant, oil, or combustion gases can leak out from this bad head gasket. And the consequences of this can range from a visible leak of the oil or coolant to a noticeable reduction in performance and driveability. We will explain to you unmistakable symptoms of a blown head gasket:
A mixture of oil & coolant. The first symptom you could experience with your car is a mixture of oil and coolant. You’ll notice the brownish color on the dipstick in some situations and you can see the milk substance when removing the engine cap.
Overheating engine A faulty head gasket may have been caused by an engine overheating too many times, but a blown head gasket