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there can be several reasons, however it is usually due to overheating and/or sudden cooling --- such as overheating the engine and then pouring cold water into the radiator, etc. Occasionally, the engine manufacturer may have a flaw in the head casting or too thin metal, etc that will cause it to crack too.
What else can I help you with?
Can a car be driven with a cracked head?
A car can be driven with a cracked head, but not very far. Once the head is cracked, the engine will start mixing oil and water and it is likely that the motor will lock up.
Can a car run with cracked cylinder head?
No
What causes Water in pistons Mazda 323?
A cracked/warped head, Blown head gasket, cracked cylinder wall, or cracked/warped intake manifold.
What causes the Coolant to bubble?
A bad head gasket or a cracked head(s).
What causes coolant to bubble?
A bad head gasket or a cracked head(s).
What causes water in motor oil of a 2001 Chevy Camero?
Blown head gasket - Warped or cracked head - cracked block.
What causes oil to oil the spark plugs in Chevrolet optra car?
This is often a cracked head gasket between oil passage and a cylinder.
How do you tell if the head is cracked or you need a new head gasket?
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.
What causes coolant to leak into the exhaust manifold?
Blown head gasket and/or cracked head.
What causes antifreeze to mix with oil?
cracked or warped head/blown head gasket.
What causes coolant in the oil?
Blown head gasket, cracked/warped head, or both.
Why does Car have white smoke coming from head power loss and makes loud noise?
Bad head gasket? Cracked Head? CRacked block?
