GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1998 🢒 Park Avenue 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 Mode Valve Actuator Replacement

Removal Procedure
  1. Remove the instrument panel assembly. Refer to Instrument Panel Assembly Removal in Instrument Panel, Gauges, and Console.
  2. Remove the driver air mix actuator. Refer to Air Mix Actuator Replacement - Driver .

    3. Object Number: 292128 Size: SH
  3. Remove the mode actuator retaining screws (1).
  4. Remove the mode actuator assembly.

Installation Procedure

    Object Number: 292128 Size: SH
  1. Align the mode valve levers with the cam slots.
  2. Install the mode actuator assembly.

    3. 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.

  3. Install the mode actuator retaining screws.

    4. Tighten
    Tighten the screws to 1 N·m (12 lb in).

  4. Install the driver air mix actuator. Refer to Air Mix Actuator Replacement - Driver .
  5. Install the instrument panel assembly. Refer to Instrument Panel Assembly Removal in Instrument Panel, Gauges, and Console.