Chevrolet Silverado / GMC Sierra. Service manual — part 447

Fig. 112: View Of Oil Level Indicator Tube Bolts & Bracket Bolts
Courtesy of GENERAL MOTORS CORP.

7. Remove the wiring harness retainer from the bracket.

8. Remove the oil level indicator tube bolt (1).

9. Remove the oil level indicator tube bracket bolts (2).

10. Remove the bracket.

2008 Chevrolet Silverado 1500

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

Fig. 113: Identifying Fuel Filter Bracket Bolts
Courtesy of GENERAL MOTORS CORP.

11. Remove the fuel filter bracket bolts.

12. Reposition the fuel filter with bracket.

13. Remove the positive crankcase ventilation (PCV) hose/pipe. Refer to Positive Crankcase

Ventilation Hose/Pipe/Tube Replacement.

2008 Chevrolet Silverado 1500

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

Fig. 114: View Of Engine Harness Bracket Bolt
Courtesy of GENERAL MOTORS CORP.

14. Remove the engine harness bracket bolt.

15. Position engine harness brackets aside.

2008 Chevrolet Silverado 1500

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

Fig. 115: View Of Fuel Injector Pipes
Courtesy of GENERAL MOTORS CORP.

16. 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.

17. 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