GM Service Manual Online
For 1990-2009 cars only

To overhaul the engine, 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. Water Pump Removal
  6. Crankshaft Pulley and Hub Removal
  7. Intake Manifold Removal
  8. Valve Rocker Arm Cover Removal
  9. Valve Rocker Arm and Push Rod Removal
  10. Cylinder Head Removal
  11. Valve Lifter Removal
  12. Oil Filter Adapter Removal
  13. Oil Pan Removal
  14. Oil Pump Removal
  15. Engine Front Cover Removal
  16. Timing Chain and Sprockets Removal
  17. Camshaft Removal
  18. Piston, Connecting Rod, and Bearing Removal
  19. Crankshaft Rear Oil Seal Removal
  20. Crankshaft and Bearing Removal
  21. Engine Block Plug Removal
  22. Engine Block Cleaning and Inspection
  23. Cylinder Boring and Honing
  24. Engine Flywheel Cleaning and Inspection
  25. Crankshaft and Bearing Cleaning and Inspection
  26. Crankshaft and Bearings Clean and Inspect (Bearing Selection)
  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 Bearing Removal
  32. Camshaft and Bearings Cleaning and Inspection
  33. Camshaft Bearing Installation
  34. Camshaft Timing Chain and Sprocket Cleaning and Inspection
  35. Valve Rocker Arm and Push Rod Cleaning and Inspection
  36. Valve Lifters and Guides Clean and Inspect
  37. Cylinder Head Disassemble
  38. Cylinder Head Cleaning and Inspection
  39. Valve Guide Reaming, and Valve and Seat Grinding
  40. Cylinder Head Assemble
  41. Oil Pump Disassemble
  42. Oil Pump Cleaning and Inspection
  43. Oil Pump Assemble
  44. Valve Rocker Arm Cover Cleaning and Inspection
  45. Oil Pan Cleaning and Inspection
  46. Intake Manifold Cleaning and Inspection
  47. Exhaust Manifold Cleaning and Inspection
  48. Service Prior to Assembly
  49. Engine Block Plug Installation
  50. Crankshaft and Bearing Installation
  51. Crankshaft Rear Oil Seal Installation
  52. Piston, Connecting Rod, and Bearing Installation
  53. Camshaft Installation
  54. Timing Chain and Sprockets Installation
  55. Crankshaft Front Cover Oil Seal Installation
  56. Engine Front Cover Installation
  57. Oil Pump Installation
  58. Oil Pan Installation
  59. Oil Filter Adapter Installation
  60. Valve Lifter Installation
  61. Cylinder Head Installation
  62. Valve Rocker Arm and Push Rod Installation
  63. Valve Rocker Arm Cover Installation
  64. Intake Manifold Installation
  65. Crankshaft Pulley and Hub Installation
  66. Water Pump Installation
  67. Exhaust Manifold Installation
  68. Oil Level Indicator and Tube Installation
  69. Engine Flywheel Installation
  70. Engine Set-Up and Testing
  71. Thread Repair