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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1217 (Engine Mechanical - 3.1L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Cylinder Head Replacement - Left >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and support the vehicle. Refer to JACKING AND LIFTING in General Information.
  2. Drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM in Engine Cooling.
  3. Drain the engine oil. Refer to ENGINE OIL AND OIL FILTER REPLACEMENT  .
  4. Lower the vehicle.
  5. Remove the lower intake manifold. Refer to INTAKE MANIFOLD REPLACEMENT - LOWER  .
  6. Remove the valve rocker arms and the pushrods. Refer to VALVE ROCKER ARM AND PUSH ROD REPLACEMENT  .
  7. Remove the exhaust crossover pipe. Refer to EXHAUST CROSSOVER PIPE REPLACEMENT (3.1 L) in Engine Exhaust.
  8. Remove the right engine mount strut bracket. Refer to ENGINE MOUNT STRUT BRACKET REPLACEMENT - RIGHT  .
  9. Remove the oil level indicator tube. Refer to OIL LEVEL INDICATOR AND TUBE REPLACEMENT  .
  10. Remove the left spark plug wires from the spark plugs. Refer to SPARK PLUGS in Engine Performance - Removal and Installation.
  11. Remove the left spark plugs. Refer to SPARK PLUGS in Engine Performance - Removal and Installation.
  12. Remove the left exhaust manifold. Refer to EXHAUST MANIFOLD REPLACEMENT - LEFT (3.1L) in Engine Exhaust.
  13. Remove the left cylinder head bolts and discard the bolts.
  14. Remove the left cylinder head.
    Fig 1: Removing Left Cylinder Head
    G02081478Courtesy of GENERAL MOTORS CORP.
  15. Remove the left cylinder head gasket.
  16. Clean and inspect the left cylinder head and the gasket mating surfaces. Refer to CYLINDER HEAD CLEANING AND INSPECTION  .
    Fig 2: Removing Left Cylinder Head Gasket
    G02081479Courtesy of GENERAL MOTORS CORP.