gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Water Pump > < Ignition System - New Spark Plugs & Gapping Info.|Page 2365
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2. Hand start the spark plug in the corresponding cylinder.
3. Tighten the spark plug.

Tighten
-

Tighten the plug to 15 Nm (11 lb ft) for used heads.

-

Tighten the plug to 20 Nm (15 lb ft) for NEW heads.

4. Install the spark plug wire.
5. Install the washer solvent container.

Water Pump > < Ignition System - New Spark Plugs & Gapping Info.|Page 2365