GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1998 🢒 LeSabre 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 Temperature Actuator Replacement

Removal Procedure
  1. Remove the instrument panel assembly. Refer to Instrument Panel Assembly Removal in Instrument Panel, Gauges and Console.

    2. Object Number: 331068 Size: SH
  2. Remove the temperature valve link rod (1) from the temperature valve by snapping the rod out of the valve.
  3. Disconnect the electrical connector (3) from the A/C temperature valve actuator (4).
  4. Remove the screws (2) which retain the actuator to the heater and A/C module (5).
  5. Remove the actuator.

Installation Procedure

    Object Number: 331068 Size: SH
  1. Install the A/C temperature and valve actuator (4) to the heater and A/C module (5).

    2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Install the screws (2).

    3. Tighten
    Tighten the screws to 1.4 N·m (12 lb in).

  3. Connect the electrical connector (3) to the A/C temperature valve actuator.

    4. Important: Adjust the temperature valve link rod prior to installation. Refer to Temperature Valve Link Adjustment .

  4. Install the temperature valve link rod (1) to the temperature valve, by snapping the rod into place.
  5. Install the instrument panel assembly. Refer to Instrument Panel Assembly Removal in Instrument Panel, Gauges and Console.