Rattling Catalytic Converter

This is a great example of a noise a catalytic converter may make if it comes apart internally. This is a somewhat common way in which a catalytic converter can fail. However, a catalytic converter dose not have to make noise to be bad. This is just one example and one symptom of a bad catalytic converter.

Note: While this is a somewhat common symptom of a catalytic converter that has come apart inside it is not common for a converter to come apart on its own. There is usually a root cause to why the converter came apart. Usually an ignition misfire is to blame. When an ignition misfire occurs the unburned fuel enters the cat converter and overwhelms it. The catalyst temperature rises above normal operating temperature and causes the catalyst to meld down. There are other things that can cause a catalytic converter to melt down also such as a leaking fuel injector, a faulty O2 sensor, a faulty MAP sensor, and the list goes on. Proper diagnosis and repair of root causes of catalytic converter failure must be address before replacing a catalytic converter or repeat failure could occur.

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Barbour's Auto Help is not responsible for any damage or personal injury incurred in the process of performing any auto repairs done by you the viewer. Automotive repair is extremely dangerous. Repair your vehicle at your own risk. It is the viewers responsibility to verify all information and procedures as outlined in YOUR REPAIR MANUAL AND OWNERS MANUAL FOR YOUR VEHICLE. Owning and using a repair manual suited for your vehicle is essential for correctly and safely performing ANY repair to your vehicle. Always wear safety glasses and heed all instructions for use applicable to any piece of equipment you may use. Due to circumstances out of the control of Barbours Auto Help, Barbours Auto Help makes no guarantee that by the use of the information given in this video a quality repair will be made. Barbour'sAutoHelp makes no guarantee that the information provided is totally complete, syncronized and accurate. Verify everything using an appropriate repair manual.

Repair your vehicle at your own risk! Barbour's auto help does not guarantee a proper repair using these techniques.

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