how to fix the catalytic converter issue on my Volvo XC90 Second Generation (2015-2024)

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the negative battery terminal to avoid electrical shorts.

2. Remove the Catalytic Converter

• Using a socket set, remove the bolts securing the catalytic converter to the exhaust system.
• Carefully detach any heat shields or brackets that may obstruct removal.
• If necessary, use a penetrating oil to loosen rusted bolts before attempting removal.

3. Inspect and Clean

• Inspect the catalytic converter for physical damage or clogging.
• If the converter is clogged but not damaged, consider cleaning it with a suitable catalytic converter cleaner. Follow the product instructions for safe use.
• If cleaning is ineffective or the converter is damaged, proceed to replacement.

4. Install New Catalytic Converter

• Place the new catalytic converter in position and secure it to the exhaust system with new bolts or gaskets as required.
• Ensure that all heat shields and brackets are reattached properly.
• Torque all bolts to manufacturer specifications (refer to the service manual for exact torque values).

5. Reconnect Battery and Test

• Reconnect the negative battery terminal.
• Start the engine and let it idle for a few minutes to check for leaks or unusual noises.
• Monitor the vehicle during a test drive to ensure proper performance.