Chevrolet Silverado / GMC Sierra. Service manual — part 1925

16. Disconnect the engine harness electrical connectors (7) from the right side fuel injectors.

Fig. 79: View Of Engine Wiring Harness, Clip, Bolt & Connector
Courtesy of GENERAL MOTORS CORP.

17. Remove the engine harness clip (1) bolt (3).

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

18. Disconnect the engine harness electrical connector (2) from the engine coolant temperature

(ECT) sensor.

19. Gather the engine harness branches and tie the harness up out of the way to the cowl panel.

Fig. 80: View Of Brake Booster Vacuum Hose & Booster Fitting
Courtesy of GENERAL MOTORS CORP.

20. Reposition the brake booster vacuum hose clamp at the booster.

21. Remove the brake booster vacuum hose from the booster fitting.

22. Secure the brake booster vacuum hose to the intake manifold.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

Fig. 81: View Of EVAP Canister Purge Tube & Quick Connect Fitting
Courtesy of GENERAL MOTORS CORP.

23. Disconnect the EVAP canister purge tube (1) quick connect fitting from the EVAP canister

purge solenoid. Refer to Plastic Collar Quick Connect Fitting Service .

24. Disconnect the fuel feed line quick connect fitting (2) from the fuel rail. Refer to Metal

Collar Quick Connect Fitting Service .

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

Fig. 82: View Of PCV Hose
Courtesy of GENERAL MOTORS CORP.

25. Remove the positive crankcase ventilation (PCV) hose from the intake manifold fitting.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado