Catalytic Converter Ceramic Broken
The italian tune up the italian tune up is a common fix for a range of automotive problems including a clogged catalytic converter.
Catalytic converter ceramic broken. Many drivers simply don t push their vehicles hard enough to heat the catalytic converter to its most efficient temperature between 800 f 426 c and 1 832 f 1 000 c leading to premature failure. A head gasket or intake manifold leak can cause problems too as oil or coolant can coat the catalyst setting off a check engine light. This can be caused by normal wear over time or it can be from physical damage such as a direct impact on the catalytic converter. Catalytic converter problems could also be something more serious like heavily worn piston rings or jumped timing chain.
If you hear the rattle during acceleration it s likely that the ceramic honeycomb inside of your catalytic converter is broken. In addition a failed oxygen sensor can cause overheating. The inside of the catalytic converter is a honeycomb set of passageways or small ceramic beads coated with catalysts. There are many passages for the exhaust gases to flow to allow for the maximum amount of surface area for the hot gases to pass.
Catalytic converters can overheat because of excessive amounts of unburned gas caused by a misfiring spark plug or a leaky exhaust valve. Prior to the mid 1980s the catalyst material was deposited on a packed bed of alumina pellets in early gm applications metallic foil monoliths made of kanthal. Ceramic honeycomb structure breaks apart. A chemical reaction takes place to make the pollutants less harmful.