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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 557 (Engine Mechanical - 3.8L (On-Vehicle)) >> Repair Instructions >> Cylinder Head Replacement - Left >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable.
  2. Raise and support the vehicle.
  3. Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement 
  4. Drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM in ENGINE COOLING .
  5. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (L36)  or Fuel Injector Sight Shield Replacement (L67) 
  6. Disconnect the intake air temperature (IAT) sensor electrical connector.
  7. Remove the air inlet duct from the throttle body.
  8. Remove the ignition control module and the ignition control module bracket from the left cylinder head. Refer to IGNITION CONTROL MODULE .
  9. Remove the right engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement - Right Upper (L36) 
  10. Remove the left engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement - Left 
  11. Remove the left side spark plug from the left cylinder head. Refer to SPARK PLUGS
  12. Remove the lower intake manifold. Refer to Intake Manifold Replacement - Lower (L36)  or Intake Manifold Replacement - Lower (L67) 
  13. Remove the left exhaust manifold. Refer to EXHAUST MANIFOLD REPLACEMENT - LEFT (3.8L) in EXHAUST SYSTEM .
  14. Remove the left valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement - Left 
  15. Remove the left rocker arms and push rods. Refer to Valve Rocker Arm and Push Rod Replacement 
  16. Remove the left cylinder head bolts. Discard the cylinder head bolts.
  17. Remove the left cylinder head.
    Fig 1: Left Cylinder Head And Bolts
    G01764264Courtesy of GENERAL MOTORS CORP.
  18. Remove the left cylinder head gasket.
  19. Remove the caps, the springs, the valves and the seals from the cylinder head. Refer to CYLINDER HEAD DISASSEMBLE
  20. Clean the gasket mating surfaces on the cylinder head, cylinder block and the intake manifold.
    21. Fig 2: Left Cylinder Head Gasket
    G01764265Courtesy of GENERAL MOTORS CORP.
  21. Clean the cylinder block bolt hole threads.
  22. Inspect the engine block. Refer to ENGINE BLOCK CLEANING AND INSPECTION
  23. Inspect the cylinder head. Refer to CYLINDER HEAD CLEANING AND INSPECTION
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