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There are several ways to tell if your vehicle has a cracked head. Common symptom of a crack on the side of the head is that after the vehicle warms up it will spray oil all over the inside of your engine compartment. If the crack is on top of the head under the valve cover it may be harder to notice. You will lose compression on one ( or possibly two ) of the cylinders so the engine will be sluggish and not make it up a hill or maybe out of your driveway ( again after the engine is hot ). You won't see the oil leaking because it will be coming out under your valve cover. If the heads are steel ( most modern cars use aluminum), taking the head to a machine shop to be milled is a good idea. The steal becomes magnetized when it is milled and metal shavings will stick to any crack. Usually a crack on the top of a head occurs between two exhaust valves that someone engineered to be next to each other. If a crack occurs on the bottom of a head you could end up with water in your oil. The oil on your dipstick will be milky white. This is also indicative of a failed head gasket. If there is a crack between two cylinders ( unlikely but not impossible) you will be losing compression in those two cylinders.
Noticing the loss of power after your engine is hot compared to when it is cold is one clue. Remember this condition could be symptomatic of other problems. If you compression test your cylinders, when the engine is cold of course, and find no problem but still lose compression once the engine is hot you can eliminate a stuck valve as the cause.
What else can I help you with?
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.
How can you tell if the head is cracked form exhaust side?
how can you tell if the head is cracked from the exhaust side
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.
How do you tell if you have a cracked head?
If it hurts
How to tell if head is cracked on a Ford escort 1995?
The only positive way to tell if a cylinder head is cracked is to remove it and have a specialist pressure test it.
Can a car run with cracked cylinder head?
No
Why does Car have white smoke coming from head power loss and makes loud noise?
Bad head gasket? Cracked Head? CRacked block?
Will your car overheat if you have a cracked head?
Yes! if you have a cracked head chances are your oil and coolant are mixing together and coolant and or oil is leaking out causing the vehicle to overheat... if you have a cracked head fix it! do not drive the vehicle
What makes your side jug bubble in you car?
A cracked head and/or a bad head gasket.
Why is water coming out your car manifold?
The head gasket or actual cylinder head is cracked.
Will a car still run if it has a cracked head?
Yes, it will run but the coolant will mix with the oil and eventually destroy the engine. An engine with a cracked head should not be driven until the head is replaced.
You have coolant getting into your oil how?
You have a blown head gasket or a cracked head. STOP driving this car immediately or you will do serious damage to the engine. It will need the gasket replaced and the head checked.You have a blown head gasket or a cracked head. STOP driving this car immediately or you will do serious damage to the engine. It will need the gasket replaced and the head checked.
