GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
HUMMER
🢒
2003
🢒
H2
🢒
Engine
🢒
Engine Mechanical - 4.8L, 5.3L, and 6.0L
🢒 Positive Crankcase Ventilation Hose/Pipe/Tube Replacement
Removal Procedure
Remove the engine sight shield. Refer to
Upper Intake Manifold Sight Shield Replacement
.
Remove the positive crankcase ventilation (PCV) tube (1) from the intake manifold and valve rocker arm cover.
Remove the PCV valve (2) from the PCV tube (1).
Remove the vent hose.
Replace the hose/tube as necessary.
Installation Procedure
Install the hose/tube as necessary.
Install the vent hose.
Install the PCV valve (2) to the tube (1).
Install the PCV tube (1) to the intake manifold and valve rocker arm cover.
Install the engine sight shield. Refer to
Upper Intake Manifold Sight Shield Replacement
.