GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1999 🢒 Century (China) (CNG) 🢒 Engine 🢒 Engine Mechanical - 3.0L (L46) 🢒 Engine Block Disassemble

    Object Number: 187008 Size: SH
  1. Remove the camshaft rear bearing hole plug.

    2. Object Number: 187017 Size: SH
  2. Remove the rear oil gallery plugs (1, 2 , 3).

    3. Object Number: 55266 Size: SH
  3. Remove the front oil gallery plugs (1, 2).
  4. Remove all of the remaining engine block plugs.

    5. Object Number: 187001 Size: SH
  5. Remove the knock sensor.

    6. Object Number: 186993 Size: SH
  6. Remove the engine oil pressure switch.