The catalytic converter is undeniably an essential part of a vehicle. The converter has an effect on the performance of your vehicle, and it reduces tailpipe emissions. Without an effective converter, ...

How do I tell if a catalytic converter is plugged up? I have noticed a funny rapid noise that is hard to describe. It sort of sounds like a ticking / chugging noise, but only when a load is applied. I ...

I have a 2012 Ford Fiesta five-speed. The check engine light is on, and the computers at AutoZone and Big O say it’s the catalytic converter and oxygen sensors. This will cost me about $850 to fix.

Modern vehicles and the internal combustion engines that power them — well, most of them, that is — have come a long way in recent decades. From inefficient carburetor systems to fuel injection and, ...