The catalytic converter is an emission-control device which treats the exhaust before it comes out of your cars. It is located under the vehicle and is an integral part of the exhaust system. Volvo catalytic converter uses two different types of catalyst, a reduction catalyst and an oxidation catalyst. The reduction catalyst converts the nitrogen oxides into harmless emissions while the oxidation catalyst burns out the hydrocarbons and carbon monoxide, all of which are byproducts of gas or fuel combustion. An oxygen sensor, also located inside the converter, tells how much oxygen is in the exhaust so the computer can adjust the air-to-fuel ratio and make sure there is enough oxygen in the exhaust to allow oxidation catalyst to burn unburned hydrocarbons and CO.
Once your Volvo catalytic converter starts whistling when you are revving it up or your exhaust smells more rotten than usual, you may need to check your catalytic converter. It may have suffered a meltdown because of an ignition or engine misfire or it may be clogged. Don’t take a long time in replacing it. Our online catalog has a wide selection of Volvo catalytic converters that are direct-fit so there is no need for modification.
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