How to check out your car's catalytic converter for blockage

Emmy award winning mechanic Scotty Kilmer shows you how to check out your car or truck's catalytic convertor for blockage. This video tutorial will show you all of the tricks to find the clogs in the catalytic convertor. Cars are just like people... they need to breathe in, and then out. In modern day cars, it's usually the catalytic convertor that gets clogged up. Jack up the car, drill a hole to measure the exhaust pressure to see if it's blocked in your automobile.