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. Crankshaft Balancer Removal
  3. Engine Flywheel Removal
  4. Drive Belt Tensioner Removal
  5. Oil Level Indicator and Tube Removal
  6. Water Outlet Removal
  7. Water Pump Removal
  8. Intake Manifold Removal
  9. Intake Manifold Removal
  10. Exhaust Crossover Removal
  11. Exhaust Manifold Removal
  12. Exhaust Manifold Removal
  13. Exhaust Manifold Removal
  14. Valve Rocker Arm Cover Removal
  15. Valve Rocker Arm Cover Removal
  16. Valve Rocker Arm and Push Rod Removal
  17. Cylinder Head Removal
  18. Valve Lifter Removal
  19. Crankshaft Front Oil Seal Removal
  20. Engine Front Cover Removal
  21. Oil Filter Adapter Removal
  22. Oil Pump Cover and Gear Set Removal
  23. Timing Chain and Sprockets Removal
  24. Camshaft Removal
  25. Balance Shaft Removal
  26. Crankshaft Rear Oil Seal Removal
  27. Crankshaft Rear Oil Seal and Housing Removal
  28. Oil Pan Removal
  29. Oil Pump Suction Pipe and Screen Assembly Removal
  30. Piston, Connecting Rod, and Bearing Removal
  31. Crankshaft and Bearing Removal
  32. Engine Block Plug Removal
  33. Engine Block Cleaning and Inspection
  34. Cylinder Boring and Honing
  35. Crankshaft and Bearing Cleaning and Inspection
  36. Crankshaft Balancer Cleaning and Inspection
  37. Engine Flywheel Cleaning and Inspection
  38. Piston and Connecting Rod Disassemble
  39. Piston, Connecting Rod, and Bearing Cleaning and Inspection
  40. Piston Selection
  41. Piston and Connecting Rod Assemble
  42. Camshaft Bearing Removal
  43. Camshaft and Bearings Cleaning and Inspection
  44. Camshaft Bearing Installation
  45. Camshaft Timing Chain and Sprocket Cleaning and Inspection
  46. Valve Rocker Arm and Push Rod Cleaning and Inspection
  47. Valve Lifters and Guides Cleaning and Inspection
  48. Cylinder Head Disassemble
  49. Cylinder Head Cleaning and Inspection
  50. Valve Guide Reaming, and Valve and Seat Grinding
  51. Cylinder Head Assemble
  52. Oil Pump Cleaning and Inspection
  53. Valve Rocker Arm Cover Cleaning and Inspection
  54. Oil Pan Cleaning and Inspection
  55. Intake Manifold Cleaning and Inspection
  56. Intake Manifold Cleaning and Inspection
  57. Exhaust Manifold Cleaning and Inspection
  58. Water Pump Cleaning and Inspection
  59. Engine Front Cover Cleaning and Inspection
  60. Balance Shaft Cleaning and Inspection
  61. Balance Shaft Bearing and/or Bushing Removal
  62. Balance Shaft Bearing and/or Bushing Installation
  63. Thread Repair
  64. Service Prior to Assembly
  65. Engine Block Plug Installation
  66. Crankshaft and Bearing Installation
  67. Piston, Connecting Rod, and Bearing Installation
  68. Oil Pump Suction Pipe and Screen Assembly Installation
  69. Oil Pan Installation
  70. Camshaft Installation
  71. Balance Shaft Installation
  72. Crankshaft Rear Oil Seal and Housing Installation
  73. Crankshaft Rear Oil Seal Installation
  74. Timing Chain and Sprockets Installation
  75. Oil Pump Cover and Gear Set Installation
  76. Oil Filter Adapter Installation
  77. Engine Front Cover Installation
  78. Crankshaft Front Oil Seal Installation
  79. Valve Lifter Installation
  80. Cylinder Head Installation
  81. Valve Rocker Arm and Push Rod Installation
  82. Valve Rocker Arm Cover Installation
  83. Valve Rocker Arm Cover Installation
  84. Exhaust Manifold Installation
  85. Exhaust Manifold Installation
  86. Exhaust Manifold Installation
  87. Exhaust Crossover Installation
  88. Intake Manifold Installation
  89. Intake Manifold Installation
  90. Water Pump Installation
  91. Water Outlet Installation
  92. Oil Level Indicator and Tube Installation
  93. Drive Belt Tensioner Bracket Installation
  94. Engine Flywheel Installation
  95. Crankshaft Balancer Installation