GM Service Manual Online
For 1990-2009 cars only

    Object Number: 166638  Size: SH
  1. Remove the crankshaft timing gear bolt (1).
  2. Remove the crankshaft timing gear (2).

  3. Object Number: 166632  Size: SH
  4. Remove seven oil pump housing mounting bolts and the oil pump housing (5) from the cylinder block.
  5. Remove the rotor plate pins from the oil pump (5).