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Home >> Buick >> 2003 >> Century Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 464 (HVAC Systems - Manual) >> Repair Instructions >> HVAC Control Assembly Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Buick Regal and 2004 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
    IMPORTANT: The key should be in the off position when connecting the electrical connectors to ensure proper calibration.
    Fig 1: View Of Electrical Connectors & Vacuum Harness
    GM410422Courtesy of GENERAL MOTORS CORP.
  1. Connect the electrical connectors and the vacuum harness to the HVAC control assembly.
  2. Fig 2: View Of HVAC Control Assembly
    GM410416Courtesy of GENERAL MOTORS CORP.
  3. Install the HVAC control assembly into the I/P.
  4. NOTE: Refer to Fastener Notice in Cautions and Notices.
  5. Install the retaining screws to secure the HVAC control assembly.

    Tighten:  Tighten the screws to 2 N.m (18 lb in).

  6. Install the front floor console. Refer to Console Replacement - Front Floor in Instrument Panel, Gages, and Console.
  7. IMPORTANT: Do not adjust any controls on the HVAC control module while the HVAC control module is calibrating. If interrupted improper HVAC performance will result.
  8. Start the engine and run for one minute.