The exhaust system is suspended by hangers and clamps attached to the frame member. Annoying rattles and noise vibrations in the exhaust system are usually caused by misalignment of parts. When aligning the system, leave all bolts and nuts loose until all parts are properly aligned, then tighten from front to rear. Make sure that you are wearing some form of eye protection when removing or installing the exhaust system, to prevent eye injury. Never work on the exhaust system of a vehicle that has been recently used. Exhaust systems reach very high temperatures and can cause severe burns. Always allow the car to cool down before starting any repairs to the exhaust.
The catalytic converter is an emission control device added to a gasoline engines exhaust system to reduce hydrocarbon and carbon monoxide pollutants in the exhaust gas stream. The catalyst in the converter is not serviceable.
Periodic maintenance of the exhaust system is not required. However, if the vehicle is raised for other service, it is advisable to check the general condition of the catalytic converter, exhaust pipes and muffler.
Testing for leaks in the exhaust system is not a difficult task. Look for black sooty deposits around joints, on the pipes and on the muffler. The presence of black soot indicates a leak. If a leak is suspected but cannot be found, pour a tiny amount of mineral spirits into the carburetor or throttle body with the engine running. The smoke created by the mineral spirits will be seen escaping from the area of the exhaust leak.