![]() If the converter becomes completely plugged, it won't let the engine get rid of its exhaust gases, causing the engine to stall.ĭriveability symptoms such as a drop in fuel economy, a loss of normal engine power, a rough idle or stalling immediately after starting the engine can all be signs of excessive backpressure caused by a plugged converter. Also, the ceramic honeycomb inside the converter may become clogged with carbon deposits, creating a restriction and excessive backpressure that chokes engine performance. However, if the catalyst becomes contaminated it will stop functioning as an afterburner and emissions will go up. When a Converter Causes ProblemsĬatalytic converters should last a long time, upwards of 150,000 miles or more under normal conditions. Sometimes things do not operate normally, tailpipe emissions can go up, engine performance may suffer or your vehicle may not pass an emissions test. They reduce tailpipe emissions of hydrocarbons (HC) and carbon monoxide (CO) to extremely low levels (almost ZERO!) when everything is operating normally. By cleaning up the pollutants left over from combustion, What You Should Know About Catalytic Converters by Larry Carley copyright 2021 Ĭatalytic converters are one of the greatest emission add-ons ever to be installed on vehicles. What You Should Know About Catalytic ConvertersĪuto Repair Library, Auto Parts, Accessories, Tools, Manuals & Books, Car BLOG, Links, Index
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