What does it do?

The exhaust system routes dangerous exhaust gas from the engine out and away from the car to keep from affecting the occupants and reduces exhaust noise from the engine.

The catalytic converter reduces the level of harmful pollutants in the exhaust.

The oxygen sensors, mounted in the exhaust system, monitor the level of oxygen in the exhaust gases to maintain efficient engine operation and to monitor the converter’s operation.

Typical wear and tear

Factors that affect the need for replacement include:

• Driving habits (short trips take their toll on exhaust system life);
• Road conditions (salt, road spray, bumps);
• Vehicle type; and/or
• Age of exhaust system parts.

Symptoms

• Loud noise;
• Rattling noise when starting, accelerating or braking;
• Drowsiness while driving; and/or
• Rotten egg smell;

Maintenance

We recommend the following preventative maintenance service for your vehicle's exhaust system:

• Drive Clean emission testing every 2 years