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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 905 (Engine Mechanical - 2.2L (LN2)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Cylinder Head Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Sonoma and 2003 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE in Battery.
  2. Drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM in Engine Cooling.
  3. Remove the engine cooling fan clutch. Refer to FAN CLUTCH REPLACEMENT in Engine Cooling.
  4. Remove the engine drive belt. Refer to DRIVE BELT REPLACEMENT  .
  5. Remove the n pulley.
    Fig 1: Removing Fan Pulley
    G01976974Courtesy of GENERAL MOTORS CORP.
  6. Remove the generator. Refer to GENERATOR in Generators & Regulators.
  7. Remove the A/C compressor, if equipped. Refer to COMPRESSOR REPLACEMENT (2.2L) in Heating, Ventilation and Air Conditioning.
  8. Remove the power steering pump. Refer to POWER STEERING PUMP REPLACEMENT (2.2L) in Power Steering System.
  9. Remove the thermostat assembly. Refer to THERMOSTAT REPLACEMENT (2.2L) in Engine Cooling.
  10. Remove the bolts holding the accessory mounting bracket to the engine.
  11. Remove the accessory mounting bracket.
  12. Remove the exhaust manifold. Refer to EXHAUST MANIFOLD REPLACEMENT in Engine Exhaust.
  13. Remove the valve rocker arm cover. Refer to VALVE ROCKER ARM COVER REPLACEMENT  .
  14. Remove the valve rocker arms and push rods. Refer to VALVE ROCKER ARM AND PUSH ROD REPLACEMENT  .
  15. Remove the intake manifold. Refer to INTAKE MANIFOLD REPLACEMENT  .
    Fig 2: Removing Accessory Mounting Bracket
    G01976975Courtesy of GENERAL MOTORS CORP.
  16. Remove the engine lift bracket from the rear of the engine.
    Fig 3: Removing Engine Lift Bracket From Rear Of Engine
    G01976976Courtesy of GENERAL MOTORS CORP.
  17. Remove the cylinder head bolts.
  18. Remove the cylinder head.
  19. Remove and discard the cylinder head gasket.
    Fig 4: Removing Cylinder Head Bolts
    G01976977Courtesy of GENERAL MOTORS CORP.
  20. Clean the following areas:
    • Clean any carbon deposits from the combustion chambers.
    • Clean all traces of the old cylinder head gasket from the cylinder head and from the engine block.

    Important:  Do not use abrasive pads to clean the cylinder head or block surfaces. An abrasive pad will damage the cylinder head and block surfaces. Abrasive pads also produce a fine grit that will contaminate the engine oil.

    It is only necessary to remove the gasket material. Do not attempt to remove all marks from the cylinder head gasket surfaces.

    • Clean the cylinder head bolt threads.
    • Clean the threads that are in the engine block.
      Fig 5: Cleaning Traces Of Old Cylinder Head Gasket From Engine Block
      G01976978Courtesy of GENERAL MOTORS CORP.
  21. Inspect the engine block to cylinder head mating surface for the following conditions:
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