GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the air cleaner. Refer to Air Cleaner Assembly Replacement in Engine Controls.

  2. Object Number: 280272  Size: SH

    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.

  3. Disconnect the negative battery cable.
  4. Remove the windshield washers and the coolant reservoir. Refer to Coolant Recovery Reservoir Replacement in Engine Cooling.
  5. Disconnect the electrical connectors.
  6. Remove the screws from the blower motor resistor.
  7. Remove the blower motor resistor.
  8.  

Installation Procedure


    Object Number: 280272  Size: SH
  1. Install the blower motor resistor.
  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 screws to the blower motor resistor.
  4. Tighten
    Tighten the screws to the blower motor resistor to 2  N·m (18 lb in).

  5. Connect the electrical connectors.
  6. Install the windshield washers and the coolant reservoir. Refer to Coolant Recovery Reservoir Replacement in Engine Coolant.
  7. 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.

  8. Connect the negative battery cable.
  9. Ensure that the circuit operates properly.
  10. Install the air cleaner. Refer to Air Cleaner Assembly Replacement in Engine Controls.