Six Easy Tests to Detect a Blown Head Gasket in an Automobile

🔍Inspect the oil filler cap for a Milky Brown goo as an indication of coolant leakage into the oil.

🔌Remove all spark plugs, pressurize the coolant system, and observe for the presence of coolant in the spark plug holes.

💧Remove the radiator cap and observe for the continuous stream of liquid, indicating combustion gases in the cooling system.

🧪Use a chemical tester to detect exhaust gases in the cooling system.

🔥Conduct a compression test to identify consistent low readings in neighboring cylinders, suggesting a failure between them.

What is a blown head gasket?

—A blown head gasket occurs when there is a breach between the engine block and cylinder heads, causing a loss of compression and potential leakage of coolant or combustion gases.

How can I detect coolant in the oil?

—Inspect the oil filler cap for a Milky Brown goo, which indicates that coolant has been leaking into the oil.

What causes a blown head gasket?

—A blown head gasket can be caused by various factors, including engine overheating, a cracked cylinder head or block, or a faulty gasket itself.

Can a blown head gasket lead to engine damage?

—Yes, a blown head gasket can cause serious engine damage if not addressed promptly. It can lead to coolant loss, overheating, and potential damage to the cylinder head or engine block.

Should I attempt the tests mentioned in the video myself?

—If you have the necessary knowledge and experience, you can perform the tests mentioned in the video. However, it is recommended to consult a professional mechanic for accurate diagnosis and repair of a blown head gasket.

00:00Introduction to the topic and six easy tests to detect a blown head gasket in an automobile.

00:08Test number one: Inspect the oil filler cap for a Milky Brown goo, indicating coolant leakage into the oil.

00:19Test number two: Remove all spark plugs, pressurize the coolant system, and observe for the presence of coolant in the spark plug holes.

01:25Test number three: Remove the radiator cap and observe for a continuous stream of liquid, indicating combustion gases in the cooling system.

01:44Test number four: Use a chemical tester to detect exhaust gases in the cooling system.

02:47Test number five: Conduct a compression test to identify consistent low readings in neighboring cylinders, suggesting a failure between them.

03:11Test number six: Inspect for engine leaks caused by oil pressure passing through the engine block and into the cylinder head.