GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1998 🢒 Riviera 🢒 Engine 🢒 Engine Controls - 3.8L 🢒 Crankcase Ventilation System Inspection

Removal Procedure

    Object Number: 12314 Size: MH
  1. While holding down the crankcase ventilation valve access cover (1), remove the 2 access cover retaining bolts.
  2. Remove the crankcase ventilation valve access cover (1).
  3. Remove the crankcase ventilation valve (2), spring, and O-ring (3).

Installation Procedure

    Object Number: 12314 Size: MH
  1. Install the crankcase ventilation valve (2), spring, and new O-ring (3).
  2. Install the crankcase ventilation valve access cover (1).
  3. While holding down crankcase ventilation valve access cover (1), install the 2 access cover retaining bolts.