My Cat Video – Catalytic Converters Explained – What They Do and Why They Fail
The catalytic converter is one of the most critical—and expensive—parts of your vehicle’s exhaust system. In this video, we explain how it works, why they fail, and how to protect yours from both theft and internal damage.
🔍 What you’ll learn:
What a catalytic converter does
Symptoms of a failing or clogged catalytic converter
Check engine light and P0420 code explained
Why unburnt fuel and oil leaks can destroy the cat
How to tell the difference between upstream and downstream issues
How to prevent converter failure
Why theft is so common (and how to help prevent it)
OEM vs aftermarket catalytic converters
What happens if you drive with a bad converter
This video is essential if you’re dealing with power loss, strange smells, rattling noises, or emissions issues. Whether you’re driving a Subaru, Toyota, Ford, Honda, or Chevy, knowing how to protect your catalytic converter can save you thousands.
🛑 A bad cat = poor performance, failed emissions, and big repair bills.
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👍 Like and comment if you’ve had catalytic converter issues—or if yours was stolen!
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