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