- Phillips-head screwdriver
- Flat-head screwdriver
- Vacuum cleaner with a hose attachment
- Compressed air (optional)
Instructions:
1. Park your vehicle in a well-ventilated area and turn off the engine. Allow the engine to cool down completely.
2. Locate the blower motor resistor. In the 2003 GMC Envoy, it is usually located behind the glove compartment.
3. Remove the glove compartment by unscrewing the screws that hold it in place.
4. Disconnect the electrical connector from the blower motor resistor.
5. Remove the blower motor resistor by unscrewing the screws that hold it in place.
6. Use a vacuum cleaner with a hose attachment to clean the blower motor resistor and the surrounding area.
7. (Optional) Use compressed air to blow out any remaining dust and debris.
8. Reinstall the blower motor resistor and the glove compartment.
9. Reconnect the electrical connector to the blower motor resistor.
10. Start the engine and test the blower motor to make sure it is working properly.
By following these instructions, you can safely and effectively clean the blower fan from your 2003 GMC Envoy.
