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