2011 Silverado Spark Plug Replacement
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Difficulty: easy to moderate
Timeframe: approx. 45 min
Parts: (verify fitment of all parts with supplier)
Spark Plug Gap: .040" (1.02mm)
Spark Plug Torque: 11 ft lbs (15 Nm)
Helpful Parts and Tools for this Job: You're saving money doing this yourself. Treat yourself to some tools.
Magnetic spark plug socket on extentions. Haven't actually tried this, but would like to.
Work great on spark plug boots if you're careful. Useful for lots of other things too.