The catalytic converter cleans your exhaust.
The catalytic converter is an leading Element in the exhaust operation of an van. Catalytic converters serve the end of converting exhaust fumes into a less harmful anatomy of Gauze. Without a catalytic converter on a vehivle, the exhaust fumes from an engine would be comprehensive of carbon monoxide. Instead, when exhaust emerges from the tailpipe of a vehivle equipped with a catalytic converter, the exhaust is primarily composed of carbon dioxide.
Instructions
1. Trial your warning lights. Provided your automobile was manufactured after 1996, it Testament be equipped with an on-board diagnostics manner, or OBD-II. Whether your "Research Engine" flare is on it may manifest a catalytic converter hitch. Provided a brilliance is on, you either obligation to returns your van to a Expert or employ your own OBD-II part to diagnose the rule to distinguish provided it is a catalytic converter problem.
2. Check the pressure while the vehicle is idling. Have an assistant rev the vehicle to around 2,500 rpm. Within a short period, you should see the pressure return to a figure close to the one you noted at idle. Check the vacuum pressure on the intake manifold. Attach a vacuum gauge to a vacuum port on the intake manifold. The intake manifold sits on top of the engine, and the vacuum port will look like a small protruding plug. You will have to look for the port as the location can vary based on the model of your car. If the pressure does not come back up, or continues dropping, there is likely a problem with the converter.
3. Visually inspect the catalytic converter itself. To do this, you have to disconnect and remove the converter from the exhaust system. It will be the larger item on the exhaust path on the engine side of the muffler. This is easiest to do if you can put your vehicle up on a lift. Normally, you should be able to shine a light through a catalytic converter and see it coming out the other end. If you can't see a light shone on a converter from the other end, it means that it is plugged. While you can replace it, the greater issue is that something is malfunctioning elsewhere in your system and is causing the plug. Also, when visually inspecting a converter if there is any loose material or if it rattles, then it needs to be replaced.
