GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Isuzu 🢒 2009 🢒 Ascender - 4WD 🢒 HVAC 🢒 Heating, Ventilation, and Air Conditioning 🢒 Heater Core Replacement

Removal Procedure
  1. Remove the HVAC module assembly. Refer to HVAC Module Assembly Replacement.
  2. Remove the heater core access cover screws.
  3. Remove the heater core access cover.

    4. Object Number: 741191 Size: SH
  4. Remove the heater core (2) from the HVAC module assembly (1).

Installation Procedure

    Object Number: 741191 Size: SH
  1. Install the heater core (2) to the HVAC module assembly (1).
  2. Install the heater core access cover.

    3. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the heater core access cover screws and tighten to 1.9 N·m (17 lb in).
  4. Install the HVAC module assembly. Refer to HVAC Module Assembly Replacement.