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Uploaded on Feb 24, 2012
Testing for bad head gasket and or cylinder head not sealing on Ford Truck. We ran the engine for about three minutes before any thing started to happen. The thermostat must open and then the cooling system starts circulating. Notice the C02 exhaust gas bubbles start out small then get larger. sometimes you may have lots of small bubbles the when you rev the engine it will force the bubbles to the top. Other times when you shut the engine off the water will start to geizer. If were to try using a chemical tester it would not work until the c02 gas bubbles started. Also notice that the coolant tank is almost empty oil slime on inside of tank. Low coolant level is the first symptom of a problem. You might also have a misfire code, 02 sensor code, leaking water pump or radiator, clogged catalytic converter .