Can the engine still run after cylinder head gasket failure?
2 Answers
Engine can still run after cylinder head gasket failure, but it is prone to overheating, so it is better not to continue driving to avoid cylinder scoring and causing more serious damage. In case of minor cylinder head gasket failure, the engine coolant reservoir will frequently run low at first - this situation needs to be checked whether it is caused by gasket failure. If not inspected and repaired promptly, the cylinder head gasket performance will deteriorate increasingly, leading to poor sealing of the gasket. This may cause penetration between water channels, air passages or oil passages, resulting in severe coolant loss and rising water temperature. In serious cases, it may cause power loss or failure to start, and may also lead to poor oil lubrication, causing severe engine wear.
Speaking of engine cylinder head gasket failure, let me share some insights. A cracked cylinder block allows coolant to leak into the combustion chamber, resulting in lean air-fuel mixture and a sharp drop in engine power. The engine might still start and idle in this condition, but if you attempt to drive, it will shake violently and emit white smoke. I've seen many car owners at repair shops trying to drive short distances, only to cause more severe damage like accelerated piston ring wear or bent connecting rods. Being able to move temporarily doesn't mean it's safe – when coolant contaminates the engine oil, lubrication fails and the engine can quickly overheat or even stall. My advice is to stop immediately, check the engine oil condition (milky color confirms the issue), and call for a tow truck to a professional shop. Repairs typically involve replacing the head gasket or cylinder head, costing at least a couple thousand. But forcing it to run could total the engine, multiplying repair costs. To prevent gasket failure, regular cooling system checks and avoiding overheating are crucial, especially for older vehicles which are more prone to this issue.
