GM Service Manual Online
For 1990-2009 cars only

    Object Number: 2033824  Size: SH
  1. Measure the camshaft lift. Refer to Engine Mechanical Specifications.
  2. Replace the camshaft if the measured value is not as specified.

  3. Object Number: 1224657  Size: SH
  4. Measure the outer diameter of each journal at the 4 different places. Refer to Engine Mechanical Specifications.
  5. Replace the camshaft if the measured value is not as specified.

  6. Object Number: 2049760  Size: SH
  7. Measure the inner diameter of the cylinder head journal at the 2 places. Refer to Engine Mechanical Specifications.
  8. If necessary, replace the cylinder head.