GM Service Manual Online
For 1990-2009 cars only

In order to overhaul, follow the sequence below.

  1. Draining Fluids and Oil Filter Removal
  2. Engine Flywheel Removal
  3. Oil Level Indicator and Tube Removal
  4. Exhaust Manifold Removal
  5. Intake Manifold Removal
  6. Crankshaft Balancer Removal
  7. Engine Front Cover Removal
  8. Camshaft Timing Chain, Sprocket, and Tensioner Removal
  9. Water Pump Removal
  10. Timing Chain Housing Removal
  11. Intake Camshaft, Housing and Lifter Removal
  12. Exhaust Camshaft, Housing and Lifter Removal
  13. Cylinder Head Removal
  14. Oil Filter Adapter Removal
  15. Oil Pan Removal
  16. Oil Pump Removal
  17. Balance Shaft Housing Removal
  18. Piston, Connecting Rod, and Bearing Removal
  19. Crankshaft Rear Oil Seal and Housing Removal
  20. Crankshaft and Bearing Removal
  21. Engine Block Plug Removal
  22. Engine Block Cleaning and Inspection
  23. Crankshaft Balancer Cleaning and Inspection
  24. Engine Flywheel Cleaning and Inspection
  25. Cylinder Boring and Honing
  26. Crankshaft and Bearing Cleaning and Inspection
  27. Piston and Connecting Rod Disassemble
  28. Piston, Connecting Rod, and Bearing Cleaning and Inspection
  29. Piston Selection
  30. Piston and Connecting Rod Assemble
  31. Camshaft and Housing Cleaning and Inspection
  32. Camshaft Timing Chain and Sprocket Cleaning and Inspection
  33. Cylinder Head Disassemble
  34. Cylinder Head Cleaning and Inspection
  35. Valve Guide Reaming, and Valve and Seat Grinding
  36. Cylinder Head Assemble
  37. Oil Pump Disassemble
  38. Oil Pump Cleaning and Inspection
  39. Oil Pump Assemble
  40. Engine Front Cover Cleaning and Inspection
  41. Intake Manifold Cleaning and Inspection
  42. Exhaust Manifold Cleaning and Inspection
  43. Oil Pan Cleaning and Inspection
  44. Balance Shaft Cleaning and Inspection
  45. Service Prior to Assembly
  46. Engine Block Plug Installation
  47. Crankshaft and Bearing Installation
  48. Crankshaft Rear Oil Seal and Housing Installation
  49. Piston, Connecting Rod, and Bearing Installation
  50. Balance Shaft Housing Installation
  51. Oil Pump Installation
  52. Balance Shaft to Engine Timing
  53. Cylinder Head Installation
  54. Intake Camshaft, Housing and Lifter Installation
  55. Exhaust Camshaft, Housing and Lifter Installation
  56. Timing Chain Housing Installation
  57. Water Pump Installation
  58. Camshaft Timing Chain, Sprocket, and Tensioner Installation
  59. Crankshaft Front Cover Oil Seal Installation
  60. Engine Front Cover Installation
  61. Oil Pan Installation
  62. Oil Filter Adapter Installation
  63. Intake Manifold Installation
  64. Crankshaft Balancer Installation
  65. Exhaust Manifold Installation
  66. Oil Level Indicator and Tube Installation
  67. Engine Flywheel Installation
  68. Engine Set-Up and Testing