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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 885 (Engine Mechanical - 4.3L (LU3)) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Cylinder Head Removal - Left

Cylinder Head Removal - Left

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the engine coolant temperature sensor, If applicable.
    Fig 1: Removing Engine Coolant Temperature Sensor
    G01977733Courtesy of GENERAL MOTORS CORP.
  2. Remove the engine coolant temperature gage sensor, if applicable.
    Fig 2: Removing Engine Coolant Temperature Gage Sensor
    G01977734Courtesy of GENERAL MOTORS CORP.
  3. Remove the spark plugs.
    Fig 3: Removing Spark Plugs
    G01977735Courtesy of GENERAL MOTORS CORP.
  4. Remove the bolts and the spark plug wire support.
    Fig 4: Removing Spark Plug Wire Support
    G01977736Courtesy of GENERAL MOTORS CORP.
  5. Remove the cylinder head bolts.
    Fig 5: Identifying Cylinder Head Bolts
    G01977737Courtesy of GENERAL MOTORS CORP.
    NOTE: After removal, place the cylinder head on two wood blocks to prevent damage.
  6. Remove the cylinder head.
    Fig 6: Removing Cylinder Head
    G01977738Courtesy of GENERAL MOTORS CORP.
  7. Remove and discard the cylinder head gasket.
    Fig 7: Removing Cylinder Head Gasket
    G01977739Courtesy of GENERAL MOTORS CORP.
  8. Remove the cylinder head locator dowel pins, if required.
    Fig 8: Removing Cylinder Head Locator Dowel Pins
    G01977740Courtesy of GENERAL MOTORS CORP.