GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Warning: Refer to Battery Disconnect Warning in the Preface section.


    Object Number: 1224181  Size: SH
  1. Disconnect the negative battery cable.
  2. Remove the timing belt and timing belt tensioner. Refer to Timing Belt Replacement.
  3. Remove the camshaft gear bolt (1).
  4. Remove the camshaft gear from the camshaft (2).

  5. Object Number: 1222960  Size: SH
  6. Remove the timing belt rear cover bolt (1).
  7. Remove the timing belt rear cover (2).

  8. Object Number: 1224184  Size: SH
  9. Remove the oil pan. Refer to Oil Pan Replacement.
  10. Remove the oil pump strainer bolts (1).
  11. Remove the oil pump strainer with oil seal (2).

  12. Object Number: 1224185  Size: SH
  13. Remove the crankshaft gear from the crankshaft (1).
  14. Remove the oil pump bolts (2).

  15. Object Number: 1224186  Size: SH
  16. Remove the A/C compressor bracket bolt (2).
  17. Remove the A/C compressor bracket.
  18. Remove the oil pump (1).
  19. Clean the oil pump and engine block gasket mating surfaces.
  20. Remove the oil seal from the oil pump (3).
  21. Inspect the oil seal for damage.

Installation Procedure


    Object Number: 1222934  Size: SH
  1. Install a new oil pump gasket.
  2. Note:  If the crankshaft front oil seal is damaged, replace it with new oil seal.

  3. When installing the crankshaft front oil seal to the oil pump, face the oil seal groove (1) toward the oil pump case contact surface (2) as shown.
  4. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1222935  Size: SH
  5. Install oil pump strainer and bolts and tighten to 9-12 N·m (80-106 lb in).
  6. Install the oil pan. Refer to Oil Pan Replacement.

  7. Object Number: 1222937  Size: SH
  8. Install the oil pump, oil pump cover bolts (1), and timing belt rear cover bolts (3) and tighten to 9-12 N·m (80-106 lb in).
  9. Install the A/C compressor with bolt.
  10. Install the crankshaft gear to crankshaft.

  11. Object Number: 1222939  Size: SH
  12. Install the camshaft gear and bolt and tighten to 50-60 N·m (36-44 lb ft).
  13. Install the timing belt and timing belt tensioner. Refer to Timing Belt Replacement.
  14. Connect negative battery cable.