Weíve all heard a car or truck in our
needs a new muffler.
But thereís more to the exhaust system than
just the muffler.
The exhaust system has three main functions:
Exhaust gas is poisonous. You donít want
it getting into the passenger compartment. For example, carbon
monoxide can be deadly. Thatís why you should never run your
engine in a closed garage. If you have a
leak in the
exhaust system, exhaust could get into the
passenger cabin and make you sick or even kill you.
If you smell exhaust in the vehicle,
roll down your windows and get it inspected.
You may smell or see exhaust coming from the engine compartment
or under the vehicle if you have a leak. Sometimes the sound
from an exhaust leak is loud and obvious. Sometimes itís a
ticking sound when you start the engine that goes away as you
drive. That could be a small crack or a
that leaks when itís cold but seals up when the metal heats and
Now, letís address the
environmental issues for our own communities.
Exhaust gas contains a number of pollutants and
particulates. The catalytic converter scrubs some of
those harmful substances. And diesel vehicles have systems to
deal with soot.