my Honda Pilot YF3 (2016-2022) has a strong odor when I turn on the AC, what is that?

Solution

1. Preparation

• Gather necessary tools and materials.
• Ensure the vehicle is parked on a flat surface with the engine off.
• Disconnect the battery before starting work on the electrical components.

2. Replace Cabin Air Filter

• Sub-steps:
  1. Locate the cabin air filter access panel, typically found behind the glove box.
  2. Remove the glove box by unscrewing or unclipping it to expose the filter.
  3. Pull out the old cabin air filter and inspect for dirt or mold.
  4. Insert a new cabin air filter, ensuring it is oriented correctly.
  5. Reassemble the glove box.

3. Clean AC Evaporator

• Sub-steps:
  1. Remove the dash panel to access the AC evaporator housing.
  2. Use a specialized AC cleaner spray to treat the evaporator core.
  3. Allow the cleaner to sit for the recommended time as per the product instructions.
  4. Rinse the evaporator with water if applicable, ensuring no debris remains.
  5. Reassemble the dash panel and reconnect any electrical connectors.

4. Clear AC Drain Tube

• Sub-steps:
  1. Locate the AC drain tube under the vehicle, typically near the firewall.
  2. Inspect the tube for any blockage or kinks.
  3. Use compressed air to blow out any debris from the tube.
  4. Ensure the drain tube is properly seated and free of leaks.

5. Inspect and Clean Ductwork

• Sub-steps:
  1. Remove any accessible panels to expose the ductwork.
  2. Use a vacuum with a brush attachment to clean out any dust or debris.
  3. Wipe down the interiors of the ducts using a damp cloth with a mild disinfectant.
  4. Reassemble any panels removed during the inspection.

Tools Required:

• OBD-II scanner
• Screwdriver set
• Compressed air
• Vacuum cleaner with brush attachment
• AC cleaner spray
• Cleaning cloths

Parts Required:

• Cabin air filter
• AC evaporator cleaner

Estimated Repair Time: 2-4 hours

Safety Warnings:

• Disconnect the battery before working on electrical components.
• Allow the engine to cool before accessing the HVAC system.