What Causes Engine Cylinder Head Gasket Failure?

[McDawson]

The causes of engine cylinder head gasket failure are: 1. Prolonged engine operation leading to excessive temperature without proper cooling, resulting in cylinder block deformation due to overheating; 2. Uneven tightening force of screws between cylinder gasket and block during assembly; 3. Poor quality cylinder gasket with insufficient surface flatness or air bubbles and uneven edges at corners; 4. Long-term aggressive driving causing sudden excessive or insufficient cylinder pressure; 5. Neglecting regular maintenance and failing to check water levels in the radiator. Symptoms of engine cylinder head gasket failure include: 1. Overheated coolant temperature gauge exceeding the midline or reaching "H" position; 2. Severe engine vibration accompanied by knocking noises; 3. Engine stalling during operation followed by difficult ignition, or hearing boiling water sounds from the engine compartment; 4. Bubbling at radiator cap with rapid water evaporation after refill; 5. White exhaust smoke; 6. Engine oil turning into cloudy milky yellow.