Sierra Classic 3500 4WD V8-8.1L (2007)
Installation Procedure
1. Install a new valve rocker arm cover gasket if the gasket was removed from the rocker arm cover.
2. Install the valve rocker arm cover.
3. Install the valve rocker arm cover bolts.
4. Notice: Refer to Fastener Notice in Service Precautions.
Tighten the valve rocker arm cover bolts in the sequence shown, using 2 passes as shown.
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Tighten the bolts a first pass to 6 Nm (53 inch lbs.).
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Tighten the bolts a final pass to 12 Nm (106 inch lbs.).
5. Important: Fully install the spark plug wire by pushing on the exposed end of the spark plug boot. Do not push the spark plug wire on to the
spark plug by using the metal heat shield.
Install the spark plug wires to the spark plugs and ignition coils.
