
Looking for Santa Claus at your local car dealership? Maybe your local auto service center? Better keep looking. That is unless you go to Carolina Tire & Auto.
The head gasket is situated between the flat surfaces of the cylinder head and the engine block. The head gasket can consist of a composite material, a multi-layer metal "sandwich" design, or a one-piece, copper-like material.
The head gasket is critical—it must contain intense combustion pressure and temperature, extremely hot engine coolant, and equally hot engine oil under pressure. The head gasket must prevent both internal and external leakage. The clamping force applied to the head gasket is extreme by design—the cylinder head and engine block must be flat and true. In addition, the cylinder head bolts must be correctly installed or "torqued" as specified. An "inline" engine design requires one head gasket. "V" and flat engine designs require two head gaskets.
Replacing the spark plugs is part of the regular maintenance schedule for any gasoline-powered vehicle. There are one or more spark plugs per cylinder. Replacing them can be labor intensive on some late model vehicles.
How to Replace the Spark Plugs
To prevent ignition misfires and Check Engine Light problems, we recommend using only high-quality spark plugs, and preferably spark plugs from the OEM.
Spark plugs have different ratings and it's important that the correct type are used.
Spark plug terminals wear down over time and can lead to engine misfires. At minimum, they need to be replaced at the mileage specified by the vehicle manufacturer.
Failing spark plugs can cause the engine to run rough and misfire, which can trigger the Check Engine Light. Continuing to drive under these conditions can damage the catalytic converter.