how to replace the catalytic converter on Honda Accord 9th Generation (2013-2017)

Solution

1. Preparation

• Tools Required:

  • Jack and jack stands
  • Socket set
  • Torque wrench
  • O2 sensor socket
  • Exhaust hanger removal tool
  • Safety glasses and gloves

• Instructions:

  • Ensure the vehicle is parked on a flat surface and the engine is cool.
  • Disconnect the negative battery terminal to prevent electrical shorts.

2. Raise the Vehicle

• Instructions:
  • Use the jack to lift the vehicle and secure it with jack stands.
  • Ensure the vehicle is stable before beginning work underneath.

3. Remove the Exhaust Components

• Instructions:
  • Locate the catalytic converter and identify the mounting points.
  • Use the socket set to remove the bolts securing the catalytic converter to the exhaust manifold and the exhaust pipe.
  • If equipped, use an O2 sensor socket to carefully remove the upstream and downstream oxygen sensors.
  • Use the exhaust hanger removal tool to detach any hangers supporting the catalytic converter.

4. Install the New Catalytic Converter

• Instructions:
  • Position the new catalytic converter in place, aligning it with the exhaust manifold and exhaust pipe.
  • Reinstall the exhaust bolts and torque them to the manufacturer’s specifications (typically around 25-30 lb-ft).
  • Reattach the oxygen sensors, ensuring they are properly threaded and secured.

5. Reassemble the Exhaust System

• Instructions:
  • Reinstall any hangers or brackets that were removed.
  • Check for any leaks and ensure all connections are tight.

6. Lower the Vehicle and Reconnect the Battery

• Instructions:
  • Carefully lower the vehicle from the jack stands.
  • Reconnect the negative battery terminal.

7. Final Checks

• Instructions:
  • Start the engine and allow it to idle.
  • Inspect for exhaust leaks or unusual noises.