GM Service Manual Online
For 1990-2009 cars only
  1. Remove the oil pan. Refer to Oil Pan Removal .

  2. Object Number: 466307  Size: SH
  3. Remove the 2 bolts and the accessory drive belt tensioner (2).
  4. Remove the nut and the accessory drive belt idler pulley (1).

  5. Object Number: 492871  Size: SH
  6. Remove the bypass hose (3) from the coolant outlet pipe.
  7. Remove the 2 bolts and the water bypass pipe bracket (2) from the cylinder head.

  8. Object Number: 466308  Size: SH
  9. Remove the nut and 15 bolts and the timing chain housing.