GM Service Manual Online
For 1990-2009 cars only

In order to overhaul, follow the sequence below.

  1. Engine Flywheel Removal
  2. Crankshaft Rear Oil Seal Removal (Lip Seal Type)
  3. Crankshaft Rear Oil Seal Removal (Cartridge Type)
  4. Drive Belt Removal
  5. Accessory Removal
  6. Oil Filter Adapter Removal (Without Engine Oil Cooler)
  7. Oil Filter Adapter Removal (With Engine Oil Cooler)
  8. Intake Manifold Removal
  9. Exhaust Manifold Removal (Left)
  10. Exhaust Manifold Removal (Right)
  11. Ignition Module Removal
  12. Camshaft Cover Removal (Left)
  13. Camshaft Cover Removal (Right)
  14. Crankshaft Balancer Removal
  15. Engine Front Cover Removal
  16. Crankshaft Front Oil Seal Removal
  17. Oil Pump Removal
  18. Secondary Camshaft Drive Chain Removal
  19. Primary Camshaft Drive Chain Removal
  20. Camshaft Removal
  21. Valve Lifter Removal
  22. Thermostat Removal
  23. Water Pump Removal
  24. Water Crossover Removal
  25. Cylinder Head Removal
  26. Starter Motor Removal
  27. Oil Pan Removal
  28. Lower Crankcase Removal
  29. Piston, Connecting Rod, and Bearing Removal
  30. Crankshaft and Bearings Removal
  31. Engine Block Clean and Inspect
  32. Crankshaft and Bearings Clean and Inspect
  33. Crankshaft Balancer Clean and Inspect
  34. Engine Flywheel Clean and Inspect
  35. Piston and Connecting Rod Disassemble
  36. Piston, Connecting Rod, and Bearings Clean and Inspect
  37. Piston Selection
  38. Piston and Connecting Rod Assemble
  39. Camshaft Intermediate Drive Shaft Clean and Inspect
  40. Cylinder Head Disassemble
  41. Cylinder Head Clean and Inspect
  42. Valve Spring Inspection and Measurement
  43. Valve and Seat Grinding
  44. Cylinder Head Assemble
  45. Camshaft and Bearings Clean and Inspect
  46. Oil Pump Disassemble
  47. Oil Pump Clean and Inspect
  48. Oil Pump Assemble
  49. Oil Pan Clean and Inspect
  50. Engine Front Cover Clean and Inspect
  51. Intake Manifold Disassemble
  52. Intake Manifold Clean and Inspect
  53. Intake Manifold Assemble
  54. Exhaust Manifold Clean and Inspect (Left)
  55. Exhaust Manifold Clean and Inspect (Right)
  56. Water Pump Clean and Inspect
  57. Water Crossover Clean and Inspect
  58. Thread Repair
  59. Service Prior to Assembly
  60. Crankshaft and Bearings Installation
  61. Piston, Connecting Rod, and Bearing Installation
  62. Lower Crankcase Installation
  63. Oil Pan Installation
  64. Starter Motor Installation
  65. Cylinder Head Installation
  66. Water Crossover Installation
  67. Water Pump Installation
  68. Thermostat Installation
  69. Camshaft Installation
  70. Primary Camshaft Drive Chain Installation
  71. Secondary Camshaft Drive Chain Installation
  72. Oil Pump Installation
  73. Front Crankshaft Oil Seal Installation
  74. Engine Front Cover Installation
  75. Crankshaft Balancer Installation
  76. Camshaft Cover Installation (Left)
  77. Camshaft Cover Installation (Right)
  78. Exhaust Manifold Installation (Left)
  79. Exhaust Manifold Installation (Right)
  80. Intake Manifold Installation
  81. Ignition Module Installation
  82. Oil Filter Adapter Installation (Without Engine Oil Cooler)
  83. Oil Filter Adapter Installation (With Engine Oil Cooler)
  84. Accessory Installation
  85. Drive Belt Installation
  86. Crankshaft Rear Oil Seal Installation (Lip Type Seal)
  87. Crankshaft Rear Oil Seal Installation (Cartridge Type Seal)
  88. Engine Flywheel Installation