Engine will possibly overheat, coolant will mix with the oil, and eventually destroy the engine. You must replace a cracked head gasket.
blown head gasket or cracked block blown head gasket or cracked block
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, 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.
A cracked block means that the engine itself is cracked. A blown head-gasket means that the gasket between the engine and the head has blown. Either can be caused by overheating the engine. When an engine overheats the head can warp causing the head-gasket to give out. In some engines the heat cracks the block. If the block is cracked, it's over. If the head-gasket is blown you can always machine the head surface and put it all back together.