GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Avalanche - 4WD 🢒 Engine 🢒 Engine Mechanical - 4.8L, 5.3L, and 6.0L 🢒 Positive Crankcase Ventilation Valve Replacement

Removal Procedure

    Object Number: 260078 Size: SH
  1. Remove the engine sight shield, if required. Refer to Upper Intake Manifold Sight Shield Replacement .
  2. Remove the positive crankcase ventilation (PCV) tube (1) from the rocker arm cover.
  3. Remove the PCV valve (2) from the PCV tube (1).

Installation Procedure

    Object Number: 260078 Size: SH
  1. Install a new PCV valve (2) to the PCV tube (1).
  2. Install the PCV tube (1) to the rocker arm cover.
  3. Install the engine sight shield, if required. Refer to Upper Intake Manifold Sight Shield Replacement .