GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2005 🢒 Terraza Ext. 🢒 Engine 🢒 Engine Cooling 🢒 Valve Rocker Arm Cover Cleaning and Inspection

    Object Number: 315710 Size: SH

    Notice: Do not attempt to remove the valve from the valve rocker arm cover. The positiive crankcase ventilation (PCV) valve is a fixed orifice system. Attempting to remove the PCV valve may result in damage to the rocker arm valve cover.

  1. Remove all rubber grommets from the valve rocker arm covers.
  2. Inspect the rubber grommets. If cracked or torn, replace.

    3. Caution: Bodily injury may occur if the cleaning solvent is inhaled or exposed to the skin.

  3. Clean the valve rocker arm covers with solvent.
  4. Flush the carbon from the PCV valve orifices (1) using solvent.
  5. Dry the PCV valve orifices using compressed air.
  6. Dry the valve rocker arm covers with compressed air.
  7. Inspect the valve rocker arm covers for damage and replace if necessary.
  8. Install all rubber grommets into the valve rocker arm covers.