my Honda Pilot YF3 (2016-2022) has a strange smell when I accelerate, what is it?

Solution

1. Preparation

• Gather tools and materials needed for the repair.
• Ensure the vehicle is parked on a level surface and the engine is cool before beginning work.

2. Inspect and Repair Exhaust System

• Sub-steps:
  1. Raise the vehicle using a jack and secure it with jack stands.
  2. Visually inspect the entire exhaust system for cracks, holes, or loose connections.
  3. If any leaks are found, use exhaust repair tape or replace the damaged section.
  4. Tighten any loose connections or clamps.

3. Examine and Replace Catalytic Converter (if necessary)

• Sub-steps:
  1. Remove the exhaust heat shield if applicable.
  2. Disconnect the oxygen sensor from the catalytic converter (if equipped).
  3. Unbolt the catalytic converter from the exhaust manifold and the exhaust pipe.
  4. Install the new catalytic converter, ensuring proper alignment.
  5. Reconnect the oxygen sensor and reattach the heat shield.

4. Check and Replace Engine Oil (if contaminated)

• Sub-steps:
  1. Drain the engine oil using an oil drain pan.
  2. Replace the oil filter with a new one.
  3. Fill the engine with the appropriate type and amount of fresh oil (refer to owner’s manual for specifications).

5. Test Drive and Monitor

• Sub-steps:
  1. Start the engine and let it idle for a few minutes.
  2. Check for any leaks or unusual noises.
  3. Take the vehicle for a test drive to ensure the smell is resolved and performance is normal.