How to Drill a Clogged Catalytic Converter

A clogged or stopped-up converter will affect the performance of the vehicle's engine. Partially clogged will reduce power because the exhaust system is not being allowed to breathe properly. A completely clogged converter will prevent the engine from running. It may start up, but once the back pressure of the exhaust builds up between the manifold...

If you suddenly experience a loss of power at around 4K rpm and your car just refused to go, there is a very good chance the your CAT is gone. I had
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If you don't mind drilling holes into parts of your own car, read on. In this video TV car talk personality Scotty Kilmer will teach you how you can check a catalytic converter to see if it's clogged using a drill, a pressure gauge, and some small metal plugs.