Hummer H2. Manual - part 1841

Fig. 532: Intake Manifold-To-Cylinder Head Gasket 
Courtesy of GENERAL MOTORS CORP. 

3. Remove and discard the intake manifold-to-cylinder head gaskets (514). 

 

2004 Hummer H2 

2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2

  

Fig. 533: Fuel Rail & Injectors 
Courtesy of GENERAL MOTORS CORP. 

4. Remove the fuel rail with injectors. Refer to Fuel Rail and Injectors Removal . 

 

2004 Hummer H2 

2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2

  

Fig. 534: Throttle Body & Nuts 
Courtesy of GENERAL MOTORS CORP. 

5. Remove the throttle body and gasket. Refer to Throttle Body Removal . 

 

2004 Hummer H2 

2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2

  

Fig. 535: EVAP Purge Solenoid, Bolt & Isolator 
Courtesy of GENERAL MOTORS CORP. 

6. Remove the evaporative emissions (EVAP) purge solenoid (708), bolt (710), and isolator (709).  

7. Clean the intake manifold in solvent. 

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Clean the intake manifold gasket surfaces. 

 

2004 Hummer H2 

2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2