GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 872586  Size: SH
  1. Disconnect the blower motor electrical connector.

  2. Object Number: 872589  Size: SH

    Important: Cut through the case as straight as possible because the motor cup must be reused. In order to prevent damage to the component, do not cut any deeper than necessary to remove the motor cup.

  3. Remove the blower motor and cup from the lower case by cutting through the case between the circular ribs around the motor with a sharp utility knife.

  4. Object Number: 872590  Size: SH
  5. Remove the blower motor nuts  (3).

  6. Object Number: 877664  Size: SH
  7. Release the blower motor retaining tab and remove the motor from the cup.

Installation Procedure


    Object Number: 872591  Size: SH
  1. Install the blower motor  (1) into the motor cup  (2) that was cut out of the lower case.
  2. 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 nuts  (3).
  4. Tighten
    Tighten the nuts to 2.4 N·m (21 lb in).

  5. Attach the service ring  (4) to the motor cup  (2) with the screws  (5) included in the kit.
  6. Tighten
    Tighten the screws to 1.8 N·m (15 lb in).

  7. Install the blower motor and service ring into the HVAC module using the screws  (5) included in the kit. Make certain the blower motor electrical connector is pointing rearward in the vehicle.
  8. Tighten
    Tighten the screws to 1.8 N·m (15 lb in).


    Object Number: 872586  Size: SH
  9. Connect the blower motor electrical connector.