Chevrolet Silverado / GMC Sierra. Manual — part 322

Fig. 310: Throttle Body Assembly
Courtesy of GENERAL MOTORS CORP.

1. Remove the electrical wire harness connectors from the throttle body.

2. Remove the throttle body nuts (507) and bolts (538).

3. Remove the throttle body (508).

4. Remove the throttle body gasket (509).

5. Discard the gasket.

FUEL RAIL AND INJECTORS REMOVAL

IMPORTANT: The intake manifold, throttle body, fuel injection rail, and fuel

injectors may be removed as an assembly. If not servicing
the individual components, remove the manifold as a
complete assembly.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 311: View Of Fuel Rail Stop Bracket & Bolt
Courtesy of GENERAL MOTORS CORP.

1. Remove the fuel rail stop bracket and bolt, as required.

CAUTION: Refer to Fuel Rail Stop Bracket Installation Caution .

IMPORTANT: The intake manifold, throttle body, fuel injection rail and fuel

injectors may be removed as an assembly. If not servicing
the individual components, remove the intake manifold as a
complete assembly.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 312: EVAP Purge Valve & Tubes
Courtesy of GENERAL MOTORS CORP.

2. Remove the evaporative emission (EVAP) canister purge solenoid valve (730) and tubes

(729, 735).

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2