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Disassembly Procedure

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Heater Inlet Pipe Stud & Coolant Temperature Sensor
    GM909634Courtesy of GENERAL MOTORS CORP.
  1. Remove the heater inlet pipe stud from the right cylinder head, if required.
  2. Remove the coolant temperature sensor from the right cylinder head, if required.
    3. Fig 2: Identifying Cylinder Head Plug
    GM1656125Courtesy of GENERAL MOTORS CORP.
  3. Remove the cylinder head plug.
    4. Fig 3: Compressing Valve Springs
    GM54421Courtesy of GENERAL MOTORS CORP.
  4. Compress the valve springs using the J 38606  . See Special Tools .
    5. Fig 4: Valve Locks, Caps, Seats & Spring
    GM54389Courtesy of GENERAL MOTORS CORP.
    NOTE: Do not damage the valve guide. Remove any burrs that have formed at the key groove by chamfering the valve stem with an oil stone or a file.
    IMPORTANT: Ensure that the valve train components are marked, organized or sorted when disassembling the cylinder head. Install the valve train components in the original location from which the component were removed.
  5. Remove the valve spring cap keys.
  6. Remove the valve spring caps.
  7. Remove the valve springs.
  8. Remove the valves.
  9. Remove the valve stem oil seals and spring seats as an assembly.
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