Tech Tip: How Can You Tell if a Head Gasket is Leaking or Has Failed? Honolulu HI
Depending on the application and how much labor it requires, the repair bill might run $1,500 or more for parts and labor. The parts required to replace a head gasket include not only the head gasket itself, but also all the other gaskets that have to be replaced to disassemble the top of the engine.
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Tech Tip: How Can You Tell if a Head Gasket is Leaking or Has Failed?
 By Larry Carley email Technical Editor November 10, 2009 The first symptoms of a head gasket that is failing are usually a slow loss of coolant with no visible leaks, engine overheating and/or a Check Engine light with cylinder misfire codes. The first symptoms of a head gasket that is failing are usually a slow loss of coolant with no visible leaks, engine overheating and/or a Check Engine light with cylinder misfire codes. The Onboard Diagnostic II system should detect any misfires that occur due to a loss of compression or spark plugs fouled by coolant seeping into a combustion chamber. So if a vehicle has a Check Engine light on and a cylinder misfire code, the spark plug in that cylinder should be removed and inspected for coolant fouling. A compression or leak down test should also be done to see if the cylinder is losing compression. Internal coolant leaks caused by a leaky head gasket can usually be diagnosed by pressure testing the cooling system. Regardless of the cause, a head gasket failure is bad news for the vehicle owner. Depending on the application and how much labor it requires, the repair bill might run $1,500 or more for parts and labor. The parts required to replace a head gasket include not only the head gasket itself, but also all the other gaskets that have to be replaced to disassemble the top of the engine. This includes the intake and exhaust manifold gaskets, too, plus new cylinder head bolts if the applicat... |
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