The step by step spark plug removal guide for 2004-2008 ford F-150, 2005-2008 Ford Expedition, F-Super Duty.This article supersedes TSB 06-15-2 to update, Vehicle Applications, Service Procedure and Part list. Some 2004-2008 F-150, 2006-2008 Mark LT, 2005-2008 F-Super Duty, Expedition, and Navigator, vehicles built with a 5.4L 3-V engine and has a engine built date before 10/9/2007, may experience difficulty with spark plug removal. This may cause damage to the spark plug and leave part of the spark plug in the cylinder head. Service Procedure: The engine build date can be read on the left hand cam cover information sticker. To remove spark plugs without damage, it is necessary to adhere exactly to this procedure before removal is attempted. Spark Plug Removal Procedure Remove the coil-on-plug assemblies and thoroughly blow out the spark plug wells and surrounding valve cover area with compressed air. Back out the spark plugs no more than 1/8 to 1/4 of a turn. Using Motorcraftâ Carburetor Tune-Up Cleaner, fill the spark plug well just above where the jamb nut hex sits (1/2 - 3/4teaspoon). This service bulletin intended for use by trained, professional technicians with the knowledge, tools, and equipment to do the job properly and safely.
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