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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1676 (Engine Mechanical - 3.8L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Cylinder Head Replacement - Right >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 Buick Regal. 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. 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 in General Information.
  4. Drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM in Engine Cooling.
  5. Drain the engine oil. Refer to ENGINE OIL AND OIL FILTER REPLACEMENT  .
  6. Remove the catalytic converter from the right exhaust manifold. Refer to CATALYTIC CONVERTER REPLACEMENT (3.8L) in Engine Exhaust.
  7. Remove the exhaust gas recirculation (EGR) valve adapter bolt from the right exhaust manifold.
    Fig 1: Removing Exhaust Gas Recirculation Valve Adapter Bolt
    G01968539Courtesy of GENERAL MOTORS CORP.
  8. Lower the vehicle.
  9. Remove the drive belt tensioner. Refer to DRIVE BELT TENSIONER REPLACEMENT  .
  10. Remove the power steering pump bolts and reposition the power steering pump.
    Fig 2: Removing Power Steering Pump
    G01968540Courtesy of GENERAL MOTORS CORP.
  11. Rotate the engine to access the right cylinder head. Refer to ROTATING THE ENGINE FOR SERVICE ACCESS  .
  12. Remove the right spark plugs from the right cylinder head. Refer to SPARK PLUGS in Self-Diagnostics - 3.8L.
  13. Disconnect the heated oxygen sensor (HO2S) electrical connector (4).
    Fig 3: Disconnecting Heated Oxygen Sensor Electrical Connector
    G01968541Courtesy of GENERAL MOTORS CORP.
  14. Remove the lower intake manifold. Refer to INTAKE MANIFOLD REPLACEMENT - LOWER (L36)  or INTAKE MANIFOLD REPLACEMENT - LOWER (L67)  .
  15. Remove the EGR valve nuts.
    Fig 4: Removing EGR Valve & Nuts
    G01968542Courtesy of GENERAL MOTORS CORP.
  16. Remove the EGR valve.
  17. Remove the EGR valve adapter bolts from the right cylinder head.
    Fig 5: Removing EGR Valve Adapter & Bolts From Right Cylinder Head
    G01968543Courtesy of GENERAL MOTORS CORP.
  18. Remove the EGR valve adapter from the right cylinder head.
  19. Remove the right engine lift bracket bolt and the nut.
  20. Remove the right engine lift bracket.
    Fig 6: Removing Right Engine Lift Bracket
    G01968544Courtesy of GENERAL MOTORS CORP.
  21. Remove the exhaust crossover pipe. Refer to EXHAUST CROSSOVER PIPE REPLACEMENT (3.8L) in Engine Exhaust.
  22. Remove the right exhaust manifold. Refer to EXHAUST MANIFOLD REPLACEMENT - RIGHT (3.8L) in Engine Exhaust
  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  .
  25. Remove the right cylinder head bolts. Discard the cylinder head bolts.
    Fig 7: Removing Right Cylinder Head & Bolts
    G01969233Courtesy of GENERAL MOTORS CORP.
  26. Remove the right cylinder head.
  27. Remove the cylinder head gasket.
    Fig 8: Removing Right Cylinder Head Gasket
    G01969234Courtesy of GENERAL MOTORS CORP.
  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 engine 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  .
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