GM Service Manual Online
For 1990-2009 cars only

    Object Number: 262535  Size: SH
  1. Remove the 8 bolts and the 1 nut which secure the timing belt cover.
  2. Remove the timing belt cover (12).

  3. Object Number: 262565  Size: SH

    Important: Before removing the timing belt, align the upper timing marks and the lower timing marks by turning the crankshaft.

  4. Ensure that the upper timing marks (1, 2) are aligned.

  5. Object Number: 262566  Size: SH
  6. Ensure that the lower timing marks (1, 2) are aligned.

  7. Object Number: 262549  Size: SH
  8. Loosen the timing belt tensioner bolt (2) and the stud (1).
  9. Push up the tensioner plate completely with your finger.Remove the belt from the crankshaft timing belt pulley and from the camshaft timing belt pulley.
  10. Inspect the timing belt for wear or for cracks. Replace the timing belt as necessary.