Chevrolet Silverado / GMC Sierra. Manual — part 557

Fig. 116: View Of Intake Manifold (Right)
Courtesy of GENERAL MOTORS CORP.

1. Remove the right intake manifold bolts. Do not forget to remove the bolt inside the intake

manifold tube.

2. Separate the intake manifold from the cylinder head using J 37228 . See Special Tools .

3. Remove the right intake manifold.

INTAKE MANIFOLD REMOVAL - LEFT SIDE

Tools Required

J 37228 Seal Cutter. See Special Tools .

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Removal

Fig. 117: View Of Intake Manifold (Left)
Courtesy of GENERAL MOTORS CORP.

1. Remove the left intake manifold bolts. Do not forget to remove the bolt inside the intake

manifold tube.

2. Separate the intake manifold from the cylinder head using J 37228 . See Special Tools .

3. Remove the left intake manifold.

VALVE ROCKER ARM, SHAFT, AND PUSH ROD REMOVAL

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 118: View Of Valve Clearance Adjusting Screw
Courtesy of GENERAL MOTORS CORP.

1. Loosen the valve clearance lock nuts on each rocker arm.

2. Loosen the valve clearance adjusting screw on each rocker arm to relieve tension on the

valve train.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado