GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2005 🢒 Yukon XL - 2WD 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Auxiliary Blower Motor Replacement

Removal Procedure
  1. Remove the right rear quarter trim panel. Refer to Rear Quarter Trim Panel Replacement - Right Side in Interior Trim.
  2. Disconnect the electrical connectors.
  3. Remove the blower motor screws.

    4. Object Number: 621720 Size: SH
  4. Remove the blower motor (1) from the auxiliary HVAC module (2).
  5. Remove the retaining clip from the fan cage.
  6. Remove the fan cage from the blower motor.

Installation Procedure

    Object Number: 621720 Size: SH
  1. Install the fan cage to the blower motor (1).
  2. Install the retaining clip to the fan cage.
  3. Install the blower motor (1) to the auxiliary HVAC module (2).

    4. 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.

  4. Install the blower motor screws.

    5. Tighten
    Tighten the screws to 1.9 N·m (17 lb in).

  5. Connect the electrical connectors.
  6. Install the right rear quarter trim. Refer to Rear Quarter Trim Panel Replacement - Right Side in Interior Trim.