Chevrolet Silverado / GMC Sierra. Service manual — part 444
Fig. 101: View Of Left Fuel Injector Pipes
Courtesy of GENERAL MOTORS CORP.
22. Prior to removing the fuel injector pipes, use compressed air to blow any debris from
between the injector line and fittings. Wipe the fittings clean of debris.
23. Spray lithium grease between the fuel injector line and fittings to assist in containing any
debris during removal. Refer to Sealers, Adhesives, and Lubricants for the correct part
number.
NOTE:
DO NOT use compressed air to clean debris from the fuel
injector inlet after the fuel line is removed. Using compressed
air can allow debris to enter the fuel injector inlet and damage
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
24. Remove the left fuel injector pipes.
Fig. 102: View Of Upper Valve Rocker Arm Cover & Gasket
Courtesy of GENERAL MOTORS CORP.
25. Remove the upper valve rocker arm cover bolts.
26. Remove the upper valve rocker arm cover.
27. Remove the upper valve rocker arm cover gasket.
28. Inspect the upper valve rocker arm cover gasket for damage, replace if necessary. Otherwise
reuse the old gasket.
the fuel injector.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
29. If required, clean and inspect the upper valve rocker arm cover. Refer to Valve Rocker
Arm Cover Cleaning and Inspection - Upper .
Installation Procedure
Fig. 103: View Of Upper Valve Rocker Arm Cover & Gasket
Courtesy of GENERAL MOTORS CORP.
1. Install the valve rocker arm cover gasket.
2. Install the upper valve rocker arm cover.
3. Install the upper valve rocker arm cover bolts.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 104: Upper Valve Rocker Arm Cover Bolts Tightening Sequence
Courtesy of GENERAL MOTORS CORP.
4. Tighten the upper valve rocker arm cover bolts in the sequence shown.
Tighten: Tighten the bolts to 8 N.m (71 lb in).
NOTE:
Refer to Fastener Notice .
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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