GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2006
🢒
Yukon XL Denali
🢒
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) hose from the intake manifold and valve rocker arm cover.
Remove the vent hose from the throttle body and the valve rocker arm cover.
Replace the hose as necessary.
Installation Procedure
Install the hose as necessary.
Install the vent hose to the throttle body and the valve rocker arm cover.
Install the PCV hose to the intake manifold and valve rocker arm cover.
Install the engine sight shield. Refer to
Upper Intake Manifold Sight Shield Replacement
.