Troubleshooting an Automotive Exhaust Systems, is not always as easy as hearing a noise. Of course, hearing problems associated with the exhaust system would indicate a problem in that area. Sometimes however, you have to use more than just hearing to find the problem.
Visual inspection is one good way of determining a problem that exists within a system. Start in the area of the exhaust manifold and look for any signs of burning of the spark plug wires or boots or paint on the cylinder head. Inspect the whole area of where the exhaust manifold is. Visually check the manifold for any cracks as well.
While the car is running, you should listen for any hissing noises that may come from this area, which could indicate a leak. Any area within the exhaust manifold that leaks, poses more of a risk of carbon monoxide poisoning. Essentially, where the manifold is positioned, there is potential for a leak to come in through the vent located at the base of the windshield, as well as other locations.
As for the rest of the exhaust system, visual inspections are a lot easier. Most of the problems are easy to identify, when they are in the form of a crack, hole, missing piece, or loose joint. Commonly, most of the problems with the exhaust pipes will have to do with the area in which the pipes meet.
One thing to always keep in mind is when something is wrong with the Automotive Exhaust System, and then you are putting yourself and others at risk. Even the smallest leaks, have the potential to cause a lot of harm. It only takes as little as. 08 percent of carbon monoxide for devastating affects.
There is a lot more to trouble shooting an exhaust system, but this gives you an idea to the basics of what you should look for. Visual inspection, hearing, and smell work to some extent, but cannot substitute for what a machine can do with testing the system.
