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What is the spark plug gap for an 03 Ford E-350 with 5.4L and motorcraft plugs?

The recommended spark plug gap for a 2003 Ford E-350 with a 5.4L engine and Motorcraft plugs is 0.043 inches (1.1 mm). However, always double-check your owner's manual as this is the general recommendation and slight variations might exist depending on specific engine codes or updates.