GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2003 🢒 DeVille 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 Blower Motor Replacement

Removal Procedure
  1. Remove the right side sound insulator. Refer to Instrument Panel Insulator Panel Replacement - Right Side in Instrument Panel, Gages and Console.

    2. Object Number: 291175 Size: SH
  2. Remove the I/P compartment. Refer to Instrument Panel Storage Compartment Replacement in Instrument Panel, Gages and Console.
  3. Remove the dash integration module from the bracket. Refer to Dash Integration Module Replacement in Body Control System.
  4. Remove the two rear dash integration module bracket fasteners.
  5. Reposition the dash integration module bracket in order to remove the blower motor.

    6. Object Number: 828429 Size: SH
  6. Disconnect the electrical connector (1) from the blower motor.
  7. Disconnect the blower motor ventilation tube (2) from the module.

    8. Object Number: 828431 Size: SH
  8. Remove the blower motor retaining fasteners (1).
  9. Remove the blower motor from the vehicle.

Installation Procedure

    Object Number: 828431 Size: SH
  1. Install the blower motor into the blower motor housing.
  2. Ensure that the blower motor gasket is properly aligned.

    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 blower motor retaining screws (1).

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


    Object Number: 828429 Size: SH
  4. Connect the electrical connector (1) to the blower motor.
  5. Connect the blower motor ventilation tube (2) to the module.

    6. Object Number: 291175 Size: SH
  6. Reposition the dash integration module bracket to its original position.
  7. Install the 2 rear dash integration module bracket fasteners.
  8. Install the dash integration module. Refer to Dash Integration Module Replacement in Body Control System.
  9. Install the I/P compartment. Refer to Instrument Panel Storage Compartment Replacement in Instrument Panel, Gages and Console.
  10. Install the right side sound insulator. Refer to Instrument Panel Insulator Panel Replacement - Right Side in Instrument Panel, Gages and Console.