How to Clean Exhaust Manifolds

Both gas and diesel combustion engines have manifolds. There are intake and exhaust manifolds in cars, trucks, motorcycles, and boat engines. Air and fuel mixtures enter the engine through the intake manifold, and fuel emissions exit through the exhaust manifold. The intake manifold and how it functions contributes to the engine's fuel efficiency. The exhaust manifold's job is to collect exhaust from the different engine cylinders and direct them out of the engine. The exhaust manifold is basically a pipe that leads to a catalytic converter and, then, through the muffler to the exhaust pipe. Of course, over time the manifold will collect dirt, dust, and corrosion. As this happens, the exhaust manifold loses efficiency in its job of releasing the gases, and it begins to foul the atmosphere, contributing to smog and endangering the driver and passengers. Even if you don't race your engines for sport or hobby, it is helpful to know how to clean exhaust manifolds on your own vehicles.