Chevrolet Silverado / GMC Sierra. Manual - part 557
Fig. 115: View Of Center Intake Manifold
Courtesy of GENERAL MOTORS CORP.
1. Remove the intake manifold crossover bolts and nuts.
2. Remove the intake manifold crossover.
INTAKE MANIFOLD REMOVAL - RIGHT SIDE
Tools Required
J 37228 Seal Cutter. See Special Tools .
Removal
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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