LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 834 (Engine Mechanical - 4.8L, 5.3L & 6.0L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Cylinder Head Replacement - Left >> Removal Procedure

Removal Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the generator bracket. Refer to GENERATOR (4.8L, 5.3L & 6.0L ENGINES) in Engine Electrical.
  2. Remove the intake manifold. Refer to Intake Manifold Removal .
  3. Remove the coolant air bleed pipe. Refer to COOLANT AIR BLEED PIPE ASSEMBLY REPLACEMENT (4.8L, 5.3L, AND 6.0L ENGINES) in Engine Cooling.
    Fig 1: Removing Coolant Air Bleed Pipe (Left)
    G02116404Courtesy of GENERAL MOTORS CORP.
  4. Remove the left exhaust manifold. Refer to EXHAUST MANIFOLD REPLACEMENT -- LEFT (4.8L, 5.3L, AND 6.0L ENGINES) in Engine Exhaust.
  5. Remove the pushrod. Refer to VALVE ROCKER ARM AND PUSH ROD REPLACEMENT  .

    Important:  The cylinder head bolts are NOT reusable.

  6. Remove and discard the cylinder head bolts (1, 2, 3).
    NOTE: After removal, place the cylinder head on two wood blocks to prevent damage to sealing surfaces.
  7. Remove the cylinder head.
    Fig 2: Removing Cylinder Head (Left)
    G02116405Courtesy of GENERAL MOTORS CORP.
  8. Remove and discard the cylinder head gasket.
  9. If required, clean and inspect the cylinder head. Refer to Cylinder Head Cleaning and Inspection  .
    Fig 3: Removing Cylinder Head Gasket (Left)
    G02116406Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals