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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1224 (Engine Mechanical - 3.8L (On-Vehicle)) >> Repair Instructions >> Cylinder Head Replacement - Right >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Refer to ENGINE EMISSION NOTICE .
  1. Disconnect the negative battery cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE .
  2. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (L36)  or Fuel Injector Sight Shield Replacement (L67) .
  3. Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE .
    Fig 1: EGR Valve Adapter Bolt
    G01703328Courtesy of GENERAL MOTORS CORP.
  4. Drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM .
  5. Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement .
  6. Remove the three-way catalytic converter pipe from the right exhaust manifold. Refer to CATALYTIC CONVERTER REPLACEMENT (3.1L) or CATALYTIC CONVERTER REPLACEMENT (3.8L) .
  7. Remove the exhaust gas recirculation (EGR) valve adapter bolt from the right exhaust manifold.
  8. Lower the vehicle.
  9. Remove the drive belt tensioner. Refer to Drive Belt Tensioner Replacement (L36)  or Drive Belt Tensioner Replacement (L67) .
  10. Remove the power steering pump and reposition.
  11. Install the J 41131  .
  12. Rotate the engine to access the right cylinder head. Refer to Rotating the Engine for Service Access .
  13. Remove the right spark plugs from the right cylinder head. Refer to SPARK PLUGS .
    Fig 2: Power Steering Pump
    G01703329Courtesy of GENERAL MOTORS CORP.
  14. Disconnect the oxygen sensor electrical connector (4).
  15. Remove the lower intake manifold. Refer to Intake Manifold Replacement - Lower (L36)  or Intake Manifold Replacement - Lower (L67) .
    Fig 3: Disconnecting Oxygen Sensor Electrical Connector
    G01703330Courtesy of GENERAL MOTORS CORP.
  16. Remove the EGR valve nuts.
  17. Remove the EGR valve.
    Fig 4: EGR Valve
    G01703331Courtesy of GENERAL MOTORS CORP.
  18. Remove the EGR valve adapter bolts from the right cylinder head.
  19. Remove the EGR valve adapter from the right cylinder head.
    Fig 5: EGR Valve Adapter
    G01703332Courtesy of GENERAL MOTORS CORP.
  20. Remove the engine lift bracket.
  21. Remove the exhaust crossover pipe. Refer to EXHAUST CROSSOVER PIPE REPLACEMENT (3.1L) or EXHAUST CROSSOVER PIPE REPLACEMENT (3.8L) .
  22. Remove the right exhaust manifold. Refer to EXHAUST MANIFOLD REPLACEMENT - RIGHT (3.1L) or EXHAUST MANIFOLD REPLACEMENT - RIGHT (3.8L) .
  23. Remove the right valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement - Right .
  24. Remove the right rocker arms and push rods. Refer to Valve Rocker Arm and Push Rod Replacement .
    Fig 6: Engine Lift Bracket
    G01703333Courtesy of GENERAL MOTORS CORP.
  25. Remove the right cylinder head bolts. Discard the bolts.
  26. Remove the right cylinder head.
    Fig 7: Right Cylinder Head
    G01703334Courtesy of GENERAL MOTORS CORP.
  27. Remove the cylinder head gasket.
  28. Remove the caps, the springs, the valves and the seals from the cylinder head. Refer to CYLINDER HEAD DISASSEMBLE .
  29. Clean the gasket mating surfaces on the cylinder head, the cylinder block and the intake manifold.
  30. Clean the cylinder block bolt hole threads.
  31. Inspect the engine block. Refer to ENGINE BLOCK CLEANING AND INSPECTION .
  32. Inspect the cylinder head. Refer to CYLINDER HEAD CLEANING AND INSPECTION .
    Fig 8: Right Cylinder Head Gasket
    G01703335Courtesy of GENERAL MOTORS CORP.
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