LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1194 (Engine Mechanical - 3.1L (On-Vehicle)) >> Repair Instructions >> Cylinder Head Replacement - Left >> 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.
  1. Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE .
  2. Drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM .
  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 .
    Fig 1: Left Cylinder Head
    G01702707Courtesy of GENERAL MOTORS CORP.
  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 (3.1L) or EXHAUST CROSSOVER PIPE REPLACEMENT (3.8L) .
  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 .
  11. Remove the left spark plugs. Refer to SPARK PLUGS .
  12. Remove the left exhaust manifold. Refer to EXHAUST MANIFOLD REPLACEMENT - LEFT (3.1L) or EXHAUST MANIFOLD REPLACEMENT - LEFT (3.8L) .
  13. Remove and discard the left cylinder head bolts.
  14. Remove the left cylinder head.
  15. Remove the left cylinder head gasket.
  16. Clean the following areas:
    • The gasket mating surfaces on the cylinder head, cylinder block, and intake manifolds.
    • The cylinder block bolt threads.
    • The cylinder head bolts.
  17. Clean and inspect the cylinder head. Refer to CYLINDER HEAD CLEANING AND INSPECTION .
    Fig 2: Left Cylinder Head Gasket
    G01702708Courtesy of GENERAL MOTORS CORP.