Loss of coolant with no apparent leak. Engine overheating. White smoke from the exhaust especially at startup. Oil level overfull. A white foamy substance on the underside of the oil fill cap. Engine miss. Air bubbles escaping from the radiator, cap off, engine running. Do not remove the cap on a hot engine. Remove it from cold engine and then start engine.
Those are signs of a blown head gasket or a cracked cylinder head.
A blown gasket can be repaired by replacing the gasket...if you are talking about the head gasket, then you have to remove the cylinder head from the engine block and replace the gasket that is inbetween them. Cracked heads generally have to be replaced because they are made of aluminum which cannot be repaired permanently once it is cracked.
To tell if the head is cracked, you have to remove it from the car, so you will replace the head gasket, anyway. Take the head to a machine shop and have it magnafluxed to see if it's cracked.
blown head gasket or cracked block blown head gasket or cracked block
Blown head gasket, cracked head or cracked block. Busted head gasket; cracked cylinder head; broken piston; or bad oil pan gasket if driving thru high water.
Could be head gasket, head, or cracked block
Blown head gasket or cracked head.
cracked head or blown head gasket
Head gasket Cracked head
you have a warped/or cracked head,or blown head gasket
Sounds like either head gasket, cracked head or cracked block
Blown head gasket, cracked head, or cracked block.