The valve cover gaskets may leak oil into the spark plug wells, shorting out the spark plugs, causing a misfire, and illuminating the Check Engine Light. Commonly the spark plugs and ignition coils or wires will require replacement, along with resealing the valve cover to correct this concern.
The average cost for a Ford Thunderbird Ignition Coil Replacement repair is between $500 and $818.
The average cost for a Ford Thunderbird Spark Plug Wire Replacement repair is between $147 and $190.
The average cost for a Ford Thunderbird Spark Plug Replacement repair is between $269 and $363.
The average cost for a Ford Thunderbird Valve Cover Gasket Replacement repair is between $366 and $505.
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