human
What is a blown head gasket and how do you repair it?
assistant
A blown head gasket is a failure of the engine's combustion chamber that can cause damage to the engine. It is caused by excessive internal pressure in the cylinder, which causes the piston rings to blow out or the cylinder wall to crack. Symptoms include an increase in oil consumption, loss of power, and smoke coming from the engine. To fix this issue, you will need to replace the head gasket. You should also check for any other signs of engine damage such as coolant leaking from the engine block, spark plug fouling, or exhaust leaks.