GM Service Manual Online
For 1990-2009 cars only

    Warning: Refer to Safety Glasses Warning in the Preface section.


    Object Number: 2085677  Size: SH
  1. Clean the large and small oil tanks (1 and 2) in solvent.
  2. Clean the tube (3) in solvent.
  3. Inspect for the following:

    • Dirt or debris
    • Damaged seal surfaces
    • Transfer tube fittings for damaged O-ring seals, replace as required
    • Restrictions within the positive crankcase ventilation (PCV) tubes or oil transfer tube
    • A dirty or restricted tube (3)

    Object Number: 1830415  Size: SH
  4. Clean the screen and inspect for the following:
  5. • Plugged or damaged screen (1)
    • Broken locking tabs (2), replace as required.