GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1998 🢒 Astro - 4WD 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Auxiliary Blower Motor Resistor Replacement

Removal Procedure
  1. Remove the body side front lower trim panel. Refer to Body Side Front Lower Trim Panel Replacement in Interior Trim.
  2. Disconnect the electrical connector from the resistor on top of the blower case.
  3. Remove the retaining screws.
  4. Remove the resistor from the blower case.

Installation Procedure
  1. Install the resistor to the blower 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.

  2. Install the retaining screws.

    3. Tighten
    Tighten the resistor retaining screws to 4 N·m (35 lb in).

  3. Connect the electrical connector to the resistor.
  4. Install the body side front lower trim panel. Refer to Body Side Front Lower Trim Panel Replacement in Interior Trim.