GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 3049-A Valve Lifter Remover

  1. Remove the lower intake manifold. Refer to Intake Manifold Replacement .
  2. Remove the valve pushrods and the valve rocker arms. Refer to Valve Rocker Arm and Push Rod Replacement .

  3. Object Number: 4577  Size: SH
  4. Remove the valve lifter pushrod guide and the bolts.

  5. Object Number: 4578  Size: SH
  6. Remove the valve lifters from the engine block. Refer to Valve Lifter Removal .

  7. Object Number: 31350  Size: SH
  8. Use the J 3049-A in order to remove stuck valve lifters.
  9. Use a cleaning solvent and a shop towel to clean any varnish from the valve lifter bores.
  10. Inspect the valve lifter bores for excessive wear or scoring. Replace the engine block if there is excessive wear or deep scoring.
  11. Inspect the camshaft for wear or damage. If the wear is questionable remove the camshaft and inspect. Refer to Camshaft and Bearings Clean and Inspect .
  12. Clean and inspect the valve lifters and the valve pushrod guide. Refer to Valve Lifters and Guides Clean and Inspect .

Installation Procedure

Important: It is normal for NEW lifters to make a slight ticking noise when the engine is first started. Increasing the engine RPMs slightly to raise oil pressure should stop the noise.


    Object Number: 4578  Size: SH
  1. Install the valve lifters to the engine block. Refer to Valve Lifter Installation .
  2. Install the valve lifter pushrod guide. Refer to Valve Lifter Installation .
  3. Install the valve pushrods and valve rocker arms. Refer to Valve Rocker Arm and Push Rod Replacement .
  4. Install the lower intake manifold. Refer to Intake Manifold Replacement .