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Ford
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2008
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F 150 4WD V8-5.4L Flex Fuel
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Repair and Diagnosis
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Specifications
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Mechanical Specifications
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Spark Plug
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General Specifications
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)