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Some 2004-2005 F-150 and 2005 F-Super Duty,Expedition, and Navigator vehicles with a 5.4L 3-valve engine may experience difficulty with spark plug removal which may cause damage to the cylinder head. Action : Refer to the following Service Procedure for techniques to remove the spark plugs and extract broken spark plugs. General Spark Plug Removal, To remove spark plugs without damage, it is necessary to adhere exactly to this procedure before removal is attempted. Make sure the engine is warm (hand touch after cooling down). Remove the coil-on-plug assemblies and thoroughly blow out the spark plug wells and surrounding valve cover area with compressed air. DO NOT USE AIR OR POWER TOOLS FOR PLUG REMOVAL. THE PLUG MUST ONLY BE REMOVED WITH HAND TOOLS. Once there is only an empty ground electrode shield left in the cylinder head, perform the following steps to remove the shield using Rotunda Special Service Tool 303-1203 (Figure 3). Install the modified cap with a long drill bit or suitable wire (Figure 4), sized for the internal diameter of the cap. The rubber cap should bottom-out on the electrode strap of the ground electrode shield once installed.
Tags : ground electrode, internal diameter, rubber cap, valve engine, service tool, 2005 f 150, spark plug, valve cover, spark plugs, cylinder head, drill bit, rotunda, hand tools, figure 3, 4l
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