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. Clutch Pilot Bearing Removal
  4. Exhaust Manifold Removal
  5. Oil Level Indicator and Tube Removal
  6. Water Pump Removal
  7. Crankshaft Balancer Removal
  8. Valve Rocker Arm Cover Removal
  9. Distributor Removal
  10. Intake Manifold Removal
  11. Valve Rocker Arm and Push Rod Removal
  12. Cylinder Head Removal
  13. Valve Lifter Removal
  14. Oil Filter Adapter Removal
  15. Oil Pan Removal
  16. Oil Pump Removal
  17. Engine Front Cover Removal
  18. Timing Chain and Sprockets Removal
  19. Balance Shaft Removal
  20. Camshaft Removal
  21. Piston, Connecting Rod, and Bearing Removal
  22. Crankshaft Rear Oil Seal and Housing Removal
  23. Crankshaft and Bearing Removal
  24. Engine Block Plug Removal
  25. Engine Block Cleaning and Inspection
  26. Cylinder Boring and Honing
  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. Crankshaft and Bearing Cleaning and Inspection
  32. Crankshaft Balancer Cleaning and Inspection
  33. Engine Flywheel Cleaning and Inspection
  34. Camshaft and Bearings Cleaning and Inspection
  35. Camshaft Bearing Removal
  36. Camshaft Bearing Installation
  37. Balance Shaft Bearing and/or Bushing Removal
  38. Balance Shaft Cleaning and Inspection
  39. Balance Shaft Bearing and/or Bushing Installation
  40. Camshaft Timing Chain and Sprocket Cleaning and Inspection
  41. Valve Rocker Arm and Push Rod Cleaning and Inspection
  42. Valve Lifters and Guides Cleaning and Inspection
  43. Cylinder Head Disassemble
  44. Cylinder Head Cleaning and Inspection
  45. Valve Guide Reaming, and Valve and Seat Grinding
  46. Cylinder Head Assemble
  47. Oil Pump Disassemble
  48. Oil Pump Cleaning and Inspection
  49. Oil Pump Assemble
  50. Valve Rocker Arm Cover Cleaning and Inspection
  51. Oil Pan Cleaning and Inspection
  52. Intake Manifold Disassemble
  53. Intake Manifold Cleaning and Inspection
  54. Intake Manifold Assemble
  55. Exhaust Manifold Cleaning and Inspection
  56. Water Pump Cleaning and Inspection
  57. Service Prior to Assembly
  58. Engine Block Plug Installation
  59. Crankshaft and Bearing Installation
  60. Crankshaft Rear Oil Seal and Housing Installation
  61. Piston, Connecting Rod, and Bearing Installation
  62. Camshaft Installation
  63. Balance Shaft Installation
  64. Timing Chain and Sprockets Installation
  65. Engine Front Cover Installation
  66. Oil Pump Installation
  67. Oil Pan Installation
  68. Oil Filter Adapter Installation
  69. Crankshaft Balancer Installation
  70. Valve Lifter Installation
  71. Cylinder Head Installation
  72. Valve Rocker Arm and Push Rod Installation
  73. Intake Manifold Installation
  74. Distributor Installation
  75. Valve Rocker Arm Cover Installation
  76. Oil Level Indicator and Tube Installation
  77. Water Pump Installation
  78. Exhaust Manifold Installation
  79. Clutch Pilot Bearing Installation
  80. Engine Flywheel Installation
  81. Engine Set-Up and Testing