GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 CTS 🢒 Engine 🢒 Engine Mechanical - 2.8L, 3.0L, 3.2L, or 3.6L 🢒 Valve Stem Oil Seal and Valve Spring Replacement - Left Side

Special Tools

    • J 39313 Spark Plug Port Adapter
    • EN 46106 Flywheel Holding Tool
    • EN 46108 Timing Chain Retention Tool
    • EN 46110 On-Vehicle Valve Spring Compressor
    • EN 46116 Valve Stem Seal Remover/Installer

Removal Procedure
  1. Remove the starter motor. Refer to Starter Motor Replacement .

    2. Object Number: 945978 Size: SH

    Important: If the EN 46106 is not installed, the crankshaft may rotate. If the crankshaft rotates, disassembly and reassembly of the entire camshaft timing system may be required.

  2. Install the EN 46106 in order to prevent crankshaft rotation.
  3. Remove the camshafts and rocker arms. Refer to Camshaft Replacement - Left Side .
  4. Remove the spark plug from the applicable cylinder. Refer to Spark Plug Replacement .
  5. Install the J 39313 to the applicable cylinder.
  6. Connect the J 39313 to a compressed air source.

    7. Object Number: 1338337 Size: SH
  7. Install the EN 46110 above the applicable cylinder as shown.
  8. Tighten the EN 46110 valve spring compressor nut (2).

    9. Object Number: 902903 Size: SH
  9. Remove the valve keepers.
  10. Loosen the EN 46110 valve spring compressor nut.
  11. Remove the valve spring retainer.

    12. Object Number: 902899 Size: SH
  12. Remove the valve spring.

    13. Object Number: 1338340 Size: SH
  13. Use the EN 46116  (1) in order to remove the valve stem seal (2).

Installation Procedure

    Object Number: 1338340 Size: SH
  1. Use the EN 46116  (1) in order to install the valve stem seal (2).

    2. Object Number: 902899 Size: SH
  2. Install the valve spring.
  3. Install the valve spring retainer.

    4. Object Number: 1338337 Size: SH
  4. Install the EN 46110 above the applicable valve spring as shown.

    5. Tighten the EN 46110 valve spring compressor nut (2).


    Object Number: 902903 Size: SH
  5. Install the valve spring keepers.
  6. Remove the EN 46110 .
  7. Disconnect the J 39313 from the compressed air source.
  8. Remove the J 39313 .
  9. Install the spark plugs. Refer to Spark Plug Replacement .
  10. Install the rocker arms and camshafts. Refer to Camshaft Replacement - Left Side .
  11. Remove the EN 46106 in order to prevent crankshaft rotation.
  12. Install the starter motor. Refer to Starter Motor Replacement .