Sierra 2500 4WD V8-6.0L (2008)
1. Correctly position the spark plug washer.
2. Inspect the spark plug gap. Adjust the gap as needed. Refer to Ignition System Specifications
3. Hand start the spark plug in the corresponding cylinder.
Notice: Refer to Fastener Notice.
4. Tighten the spark plug.
Tighten the plug to 15 N.m (11 lb ft).
