What are the symptoms of a blown head gasket?

[SanAbel]

Symptoms of a blown head gasket are as follows: 1. Engine cylinder head leakage: Damage to the head gasket causes poor sealing between the cylinder head and the engine block, resulting in air leakage during vehicle operation. 2. Oil and coolant leakage: A damaged head gasket can lead to coolant and engine oil leakage, which may mix together and produce a splashing sound of gas mixed with liquid. The following are the reasons for a blown head gasket: 1. The engine operating under heavy load for extended periods, frequently experiencing detonation combustion, leading to localized high temperature and pressure in the cylinders that can erode the head gasket. 2. Excessive ignition advance angle or fuel injection advance angle, causing excessively high cycle pressure and temperature.