When inspecting or replacing the exhaust system components,
make sure that there is adequate clearance from all points on the underbody.
Adequate clearance prevents overheating of the floor pan and possible damage
to the passenger compartment insulation and the trim materials.
Check the complete exhaust system, nearby body areas, and the rear compartment
lid for the following conditions which could permit exhaust fumes to seep
into the rear compartment or the passenger compartment:
| • | Broken or damaged parts |
| • | Missing or misaligned parts |
Dust or water in the rear compartment may be an indication of a problem
in one of these areas. Correct faulty areas immediately. For continued integrity,
the exhaust pipe rearward of the exhaust muffler must be replaced whenever
a new exhaust muffler is installed.
Exhaust Muffler
On the single exhaust system the resonator and the exhaust pipe are
serviced as a unit. The exhaust muffler and the tail pipe are serviced as
a unit.
On the dual exhaust system, the left-hand exhaust muffler, the tail
pipes, and the partial exhaust pipes are serviced as one unit. The right-hand
exhaust muffler and the tail pipes are serviced as one unit. The resonator
and the exhaust pipe are serviced as one unit.
Hangers
Various types of hangers are used to support the exhaust systems. These
include:
| • | Exhaust hanger brackets |
| • | Exhaust hanger insulators |
The installation of the exhaust system supports is very important. Improperly
installed supports cause annoying vibrations.
Clamps
Two types of clamps are used for connecting exhaust system slip joints:
Coat the slip joints with exhaust system sealer before assembling.
Welded Connections
When servicing a welded connection, clamp the new connection. When installing
replacement parts, coat the slip joints with exhaust system sealer before
assembling.
Three Way Catalytic Converter
The three way catalytic converter is an emission control device that
is added to the exhaust system to reduce pollutants from the exhaust gas stream.
Important: The three way catalytic converter requires the use of unleaded fuel
only.
Periodic maintenance of the exhaust system is not required. If the vehicle
is raised for other service, it is advisable to check the condition of the
complete exhaust system.
On-Vehicle Service
Service the three individual components of the single exhaust system
as follows:
| • | Three way catalytic converter |
| • | Exhaust pipe and resonator |
| • | Exhaust muffler and tail pipe |
Service the four individual components of the dual exhaust system as
follows:
| • | Three way catalytic converter |
| • | Exhaust pipe and resonator |
| • | Right-hand exhaust muffler and tail pipe |
| • | Left-hand exhaust muffler with the partial exhaust pipe and tail
pipe |
