GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 292121  Size: SH
  1. Disconnect the heater hoses from the heater core. Refer to Heater Hoses Replacement .
  2. Remove the instrument panel assembly. Refer to Instrument Panel Carrier Replacement in Instrument Panel, Gauges and Console.
  3. Remove the heat shield .
  4. Remove the heater core cover fasteners (1).

  5. Object Number: 292125  Size: SH
  6. Remove the heater core retaining fasteners (1).

  7. Object Number: 292087  Size: SH
  8. Remove the heater core retaining straps.
  9. Remove the heater core.
  10. Remove the heater core case seals.

Installation Procedure


    Object Number: 292087  Size: SH
  1. Install the heater core.
  2. Install the heater core retaining straps.
  3. Install new heater core case seals.

  4. Object Number: 292125  Size: SH
  5. Install the heater core retaining fasteners (1).

  6. Object Number: 292121  Size: SH
  7. Install the heater core cover fasteners (1).
  8. Install the heat shield.
  9. Install the instrument panel assembly. Refer to Instrument Panel Carrier Replacement in Instrument Panel, Gauges and Console.
  10. Connect the heater hoses to the heater core. Refer to Heater Hoses Replacement .