GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Warning: Refer to Battery Disconnect Warning in the Preface section.


    Object Number: 1223125  Size: SH
  1. Disconnect the negative battery cable.
  2. Disconnect the lower radiator hose and drain the engine cooling system. Refer to Cooling System Draining and Filling.
  3. Loosen the upper radiator hose clamp and disconnect the upper radiator hose (1).
  4. Loosen the surge tank hose clamp and disconnect the surge tank hose (2).

  5. Object Number: 1204172  Size: SH
  6. Remove the electric cooling fan. Refer to Engine Coolant Fan Replacement.
  7. Remove the radiator bolts (2).
  8. Remove the radiator support brackets (1).
  9. Remove the radiator (3).
  10. Note: The radiator still contains a substantial amount of coolant. Drain the remainder of the coolant from the radiator into a drain pan.

  11. Inspect the radiator for a break, clog, or other damage.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1223129  Size: SH
  1. Install the radiator (2) with the mounting bolts and the support brackets (1) and tighten to 3.5-4.5 N·m (31-40 lb in).
  2. Install the electric cooling fan. Refer to Engine Coolant Fan Replacement.

  3. Object Number: 1223130  Size: SH
  4. Connect the upper radiator hose to the radiator (1).
  5. Connect the surge tank hose to the radiator (2).
  6. Secure each hose with hose clamps.
  7. Refill the engine cooling system. Refer to Cooling System Draining and Filling.
  8. Connect the negative battery cable.