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. Intake Manifold Removal
  6. Crankshaft Balancer Removal
  7. Camshaft Timing Chain, Sprocket, and Tensioner Removal
  8. Water Pump Removal
  9. Timing Chain Housing Removal
  10. Intake Camshaft, Housing and Lifter Removal
  11. Exhaust Camshaft, Housing and Lifter Removal
  12. Cylinder Head Removal
  13. Oil Filter Adapter Removal
  14. Oil Pan Removal
  15. Oil Pump Removal
  16. Balance Shaft Housing Removal
  17. Piston, Connecting Rod, and Bearing Removal
  18. Crankshaft Rear Oil Seal and Housing Removal
  19. Crankshaft and Bearing Removal
  20. Engine Block Plug Removal
  21. Engine Block Cleaning and Inspection
  22. Crankshaft Balancer Cleaning and Inspection
  23. Engine Flywheel Cleaning and Inspection
  24. Cylinder Boring and Honing
  25. Crankshaft and Bearings Clean and Inspect (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 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. Intake Manifold Cleaning and Inspection
  41. Exhaust Manifold Cleaning and Inspection
  42. Oil Pan Cleaning and Inspection
  43. Balance Shaft Cleaning and Inspection
  44. Service Prior to Assembly
  45. Engine Block Plug Installation
  46. Crankshaft and Bearing Installation
  47. Crankshaft Rear Oil Seal and Housing Installation
  48. Piston, Connecting Rod, and Bearing Installation
  49. Balance Shaft Housing Installation
  50. Oil Pump Installation
  51. Balance Shaft to Engine Timing
  52. Cylinder Head Installation
  53. Intake Camshaft, Housing and Lifter Installation
  54. Exhaust Camshaft, Housing and Lifter Installation
  55. Timing Chain Housing Installation
  56. Water Pump Installation
  57. Camshaft Timing Chain, Sprocket, and Tensioner Installation
  58. Crankshaft Front Cover Oil Seal Installation
  59. Engine Front Cover Installation
  60. Oil Pan Installation
  61. Oil Filter Adapter Installation
  62. Intake Manifold Installation
  63. Crankshaft Balancer Installation
  64. Exhaust Manifold Installation
  65. Oil Level Indicator and Tube Installation
  66. Engine Flywheel Installation
  67. Engine Set-Up and Testing
  68. Thread Repair