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Home >> Ford >> 2008 >> F 150 4WD V8-5.4L >> Repair and Diagnosis >> Maintenance >> Tune-up and Engine Performance Checks >> Spark Plug >> Specifications >> General Specifications
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General Specifications

Item Specification

Spark plug gap (early build - not adjustable) 1.15 ± 0.13 mm (0.040 to 0.050 in)
Spark plug gap (late build) 1.05 ± 0.05 mm (0.039 to 0.043 in)
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