Sierra 1500 2WD V6-4.3L (2008)
5. Inspect the spark plug(s) that were removed from the misfiring cylinders in Step 2 above. If any carbon tracking (1) is observed as indicated
above, replace as needed. Refer to Spark Plug Inspection and Spark Plug Replacement in SI.
6. Use a scan tool to clear any existing DTCs.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table above.
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