What are the symptoms of a bad cylinder head gasket in a car?

[LaKyle]

The symptoms of a bad cylinder head gasket in a car are: lack of water, lack of engine oil, presence of engine oil in the water, whitening of engine oil due to water ingress, white smoke from the exhaust pipe containing water, blue smoke from the exhaust pipe indicating oil burning, cylinder wall perforation causing engine knocking sounds, noticeable increase in water temperature or even boiling, leakage of air from the engine cylinder head, and reduced cylinder pressure. Methods to diagnose a bad cylinder head gasket: 1. Check if the engine's oil circuit and electrical circuit are normal. If they are functioning properly, it can be determined that the issue is a damaged cylinder head gasket. 2. If adjacent cylinders are not working, use a cylinder pressure gauge to measure the pressure in the non-functioning cylinders. If the pressure in both adjacent cylinders is low and similar, it can be confirmed that the cylinder head gasket is blown or the cylinder head is deformed and damaged.