GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2004 🢒 TrailBlazer - 2WD 🢒 Engine 🢒 Engine Mechanical - 4.8L, 5.3L, and 6.0L 🢒 Positive Crankcase Ventilation Hose/Pipe/Tube Replacement

Removal Procedure

    Object Number: 1386395 Size: SH
  1. Remove the positive crankcase ventilation (PCV) foul air hose from the intake manifold and valve rocker arm cover.
  2. Remove the air cleaner resonator outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement in Engine Controls.

    3. Object Number: 647795 Size: SH
  3. Remove the PCV fresh air hose from the throttle body and the valve rocker arm cover.

Installation Procedure

    Object Number: 647795 Size: SH
  1. Install the PCV fresh air hose to the throttle body and the valve rocker arm cover.
  2. Install the air cleaner resonator outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement in Engine Controls.

    3. Object Number: 1386395 Size: SH
  3. Install the PCV foul air hose to the intake manifold and valve rocker arm cover.