Exhaust System: Description and Operation

Exhaust System

2.0L Zetec:

2.0L SPI:

Part 1 Of 2 (2.0L SVT):

Part 2 Of 2 (2.0L SVT):

Part 1 Of 2 (2.3L PZEV):

Part 2 Of 2 (2.3L PZEV):

NOTE: The exhaust systems shown are production systems.

The exhaust systems are of a two-piece construction for production and five-piece construction for service.

Catalytic Converter
The catalytic converter plays a major role in the emission control system. The catalytic converter works as a gas reactor. It's catalytic function is to speed up the heat producing chemical reaction between components of the exhaust gases in order to reduce the air pollutants. Because of the high temperatures at which the catalytic converter operates, the vehicle body areas around the catalytic converter are protected by heat shields. The catalytic converter controls three emissions; Hydro carbons (HC), carbon monoxide (CO) and oxides of nitrogen (NOx).