how to identify a bad catalytic converter in my Toyota RAV4 Fourth Generation (2013-2018)

Solution

1. Preparation

• Gather required tools and parts.
• Ensure the vehicle is on a level surface and engage the parking brake.

2. Disconnect Battery

• Use a socket set to disconnect the negative terminal of the battery to prevent any electrical issues during repair.

3. Remove Exhaust Components

• If necessary, remove exhaust components connected to the catalytic converter:
  • Use a socket set to unbolt the exhaust pipes from the catalytic converter.
  • Support exhaust components as needed to prevent strain on the hangers.

4. Replace Catalytic Converter

• Remove the old catalytic converter:
  • Unbolt the catalytic converter from the exhaust manifold and tailpipe.
  • Inspect the gaskets and replace them if damaged.
• Install the new catalytic converter:
  • Align the new catalytic converter with the exhaust manifold and tailpipe.
  • Use a torque wrench to tighten the bolts to the manufacturer-specified torque (typically around 30-40 lb-ft).

5. Reconnect Battery

• Reconnect the negative terminal of the battery with the socket set.

6. Final Inspection

• Start the vehicle and ensure there are no exhaust leaks or unusual noises.
• Check that the check engine light is off after driving for a short distance to allow the system to reset.