GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2000 🢒 Impala 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Instrument Panel Outlet Valve Replacement

Removal Procedure
  1. Remove the LH and RH insulators. Refer to Instrument Panel Insulator Replacement in Instrument Panel, Gauges and Console.
  2. Remove the knee bolster. Refer to Knee Bolster Bracket Replacement in Instrument Panel, Gauges and Console.
  3. Remove the floor console, if equipped. Refer to Front Floor Console Replacement in Instrument Panel, Gauges and Console.
  4. Disconnect the defroster/vent valve link at the vent valve on the LH side of the HVAC module.

    5. Object Number: 508311 Size: SH
  5. Remove the heater outlet cover retaining screws .

    6. Important: Position the heater outlet cover downward and rearward in order to disconnect the cover from the rear floor area duct assembly.

  6. Remove the heater outlet cover.

    7. Object Number: 607149 Size: SH
  7. Remove the vent valve (1) from the HVAC module.

Installation Procedure

    Object Number: 607149 Size: SH

    Important: Align the vent valve into the HVAC module case.

  1. Install the vent valve (1) into the HVAC module.

    2. Object Number: 508311 Size: SH
  2. Install the heater outlet cover.

    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 heater outlet cover retaining screws.

    4. Tighten
    Tighten the heater outlet cover screws to 1.5 N·m (13 lb in).

  4. Connect the defroster/vent valve link to the vent valve on the LH side of the HVAC module.
  5. Install the floor console, if equipped. Refer to Front Floor Console Replacement in Instrument Panel, Gauges and Console.
  6. Install the knee bolster. Refer to Knee Bolster Bracket Replacement in Instrument Panel, Gauges and Console.
  7. Install the LH and RH insulators. Refer to Instrument Panel Insulator Replacement in Instrument Panel, Gauges and Console.