Operation CHARM: Car repair manuals for everyone.

Catalytic Converter: Description and Operation

CAUTION:
- The TWC requires the use of unleaded fuel only, or damage to the catalyst may result.
- Prolonged operation with a misfiring or flooded engine may cause the Three Way Catalytic Converter (TWC) to overheat. This could cause damage either to the catalyst itself or the operating vehicle and possible personal injury.
- When jacking or lifting the vehicle from frame side rails, be certain that the lift pads do not contact the TWC; damage may result.

DESCRIPTION
The TWC is an emission control device added to the exhaust system on gasoline engines to reduce pollutants from the exhaust gas stream.


The catalyst is not serviceable; the TWC is serviced as part of the front pipe/TWC assembly.