Hummer H3. Manual — part 503

Fig. 48: Positive Crankcase Ventilation Hose/Pipe/Tube Replacement
Courtesy of GENERAL MOTORS CORP.

1. Remove the intake manifold sight shield. Refer to Upper Intake Manifold Sight Shield

Replacement.

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

left valve rocker arm cover, if required.

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3

Fig. 49: PCV Tube
Courtesy of GENERAL MOTORS CORP.

3. Remove the PCV tube (1) from the air cleaner outlet duct, if required.

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3

Fig. 50: PCV Hose/Tube
Courtesy of GENERAL MOTORS CORP.

4. Remove the PCV tube (1) from the right valve rocker arm cover fitting (2), if required.

5. Remove the appropriate PCV hose/tube from the vehicle.

Installation Procedure

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3

Fig. 51: PCV Hose/Tube
Courtesy of GENERAL MOTORS CORP.

1. Install the appropriate PCV hose/tube to the vehicle.

2. Install the PCV tube (1) to the right valve rocker arm cover fitting (2), if required.

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3