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Is there a way to tell if you actually have a blown head gasket?
Wiki User
∙ 9y ago
Run engine to normal operating temperature and pull dipstick, let a drop fall on a hot part of engine - Oil will smoke-coolant will sizzle. Any white smoke (steam) coming out exhaust pipe with engine hot? You sure the mechanic was talking about your car? Just kidding. A blown head gasket causes oil, exhaust gas, or cooling water to get into the wrong place. Usually water in the oil (on the dipstick) is the most common. The oil will look like chocolate milk. Some engines leak cylinder pressure into the cooling system. This pressure boils away and/or blows out the water thru the overflow tank. Your temperature gauge will fluctuate up and down, from what little water that's left circulating past the temperature sensor. Also, if you lower your rpm, the pressure decreases and allows the water to circulate correctly. White, sweet smelling exhaust may also happen.
Wiki User
∙ 9y ago
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A compression test will tell you if a head gasket is blown on ANY engine. Also, white smoke tells you that your burning anti-freeze, which means a head gasket is blown.
Is it possible for a mechanic to tell if the head gasket is blown by simply smelling the engine?
Just look at your engine oil and you can tell, if it looks milky there is water getting into the oil and that's the sign of a blown intake gasket or head gasket.
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A compression test will verify if the head gasket if blown or not, the majority of the time.
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antifreeze in the oil should be a milkshake color
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Pressure test the cylinders, but smart money will replace both.
Would a blown head gasket make a motor knock?
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Any smoke ( blue ) coming out the exhaust ?
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A good way to tell is change your oil. When a head gasket blows you will have water in your oil or oil in your water system. Check these 2 areas for water and oil.
How can you tell if it is a blown head gasket or a rod on a 96 blazer?
White smoke from the exhaust is a sure sign of a blown head gasket. You will also be loosing coolant with no apparent leak. A compression test will verify this. A rod will knock if the bearings are worn.
How can you tell if you have a blown head or a blown head gasket in a 87 cutlass ciera 2.5?
Check your cylinder pressure with a compression gauge. The gauge will hook up to your spark plug openings.
