GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 TrailBlazer - 4WD 🢒 Engine 🢒 Engine Mechanical - 5.3L 🢒 Positive Crankcase Ventilation Hose/Pipe/Tube Replacement

Removal Procedure

    Object Number: 1485981 Size: SH
  1. Remove the positive crankcase ventilation (PCV) dirty 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 .

    3. Object Number: 1522414 Size: SH
  3. Remove the PCV fresh air hose (2) from the valve rocker arm cover (1).

Installation Procedure

    Object Number: 1522414 Size: SH
  1. Install the PCV fresh air hose (2) to the valve rocker arm cover (1).
  2. Install the air cleaner resonator outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement .

    3. Object Number: 1485981 Size: SH
  3. Install the PCV dirty air hose to the intake manifold and valve rocker arm cover.