GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1998 🢒 Cutlass 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Blower Motor and Fan Replacement

Removal Procedure
  1. The blower motor and fan are located in the lower right hand corner of the HVAC module. Service this component as an assembly only.

    2. For blower motor electrical diagnosis. Refer to HVAC Blower Controls System Check .

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  2. Disconnect the negative battery cable.
  3. Remove the right closeout/panel insulator. Refer to Instrument Panel Insulator Panel Replacement - Right Side in Instrument Panel, Gauges and Console.
  4. Move the Body Control Module (BCM) aside. Refer to Body Control Module Replacement in Body Control System.
  5. Disconnect the electrical connections at the blower motor.
  6. Remove the blower motor retaining screws.
  7. Remove the blower motor and fan assembly.

Installation Procedure
  1. Install the blower motor and fan assembly.

    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.

  2. Install the retaining screws.

    3. Tighten
    Tighten the screws to 5 N·m (45 lb in).

  3. Connect the electrical connections.
  4. Install the BCM into position. Refer to Body Control Module Replacement in Body Control System.
  5. Install the right closeout/insulator panel. Refer to Instrument Panel Insulator Panel Replacement - Right Side in Instrument Panel, Gauges and Console.
  6. Connect the negative battery cable.

    7. Tighten
    Tighten the negative battery cable bolt to 16 N·m (12  lb ft).