why does my Honda Pilot make a strange smell when I turn on the AC

Solution

1. Preparation

• Gather tools and materials: safety goggles, gloves, vacuum cleaner, replacement cabin air filter, cleaning spray.
• Ensure the engine is turned off and the AC system is off.

2. Replace Cabin Air Filter

1. Locate the cabin air filter compartment (usually behind the glove box).
2. Remove the glove box if necessary to access the filter.
3. Take out the old cabin air filter and inspect it for dirt and mold.
4. Clean the compartment with a vacuum or damp cloth.
5. Install the new cabin air filter according to the airflow direction indicated on the filter.

3. Clean the AC Evaporator

1. Mix a solution of water and a mild disinfectant or specialized AC cleaner.
2. Access the AC evaporator by removing the dashboard or vent cover (if applicable).
3. Spray the cleaning solution onto the evaporator coils while ensuring the area is well-ventilated.
4. Allow the cleaner to sit for a few minutes to disinfect and eliminate odors.
5. Rinse if required and let the evaporator dry before reassembling the dash.

4. Inspect and Fix Coolant Leaks

1. Visually inspect the engine bay for any signs of coolant leakage.
2. If coolant is leaking, identify the source (hoses, radiator, or heater core).
3. Replace any damaged hoses or components and refill the cooling system with the appropriate coolant type.

5. Clear AC Drain Line

1. Locate the AC drain line under the vehicle (usually a rubber tube).
2. Use a flexible wire or compressed air to clear any blockages.
3. Ensure that water drains freely when the AC is on.