The catalytic converter in your Toyota is designed to convert toxic engine gases into harmless ones. This process reduces engine pollution and allows your engine to run more efficiently. Converters last, on average, for approximately ten years. Eventually, your converter will become blocked or damaged. If this happens, your Toyota dealer can fix the problem for you. These are a few signs that your converter could be in trouble.
Your Engine Dies Quickly
If you start your engine and it dies in a few seconds, the most likely cause is a blocked converter. As your converter works, carbon and other byproducts can build up in the converter and create a blockage. If the exit to the exhaust is blocked, engine gases won't be able to escape your car. These gases will flow back into your engine.
The newly-arriving gases increase the pressure in your engine. At the same time, the combustion process starts when your engine turns over. This combination of gases and high concentration of fuel vapor will cause your engine to shut down very quickly. Our technicians will clear the blockage from the converter and your engine should start normally again.
Weird Noises From the Converter
Rattling and other noises from the converter are usually a sign that its internal structure has been damaged. A converter has a honeycomb structure that provides the surface area necessary for converting gases. This structure is very strong, as it must endure temperatures over 1,600 F as part of the conversion process.
The honeycomb can be damaged by other problems, for example, engine misfiring. When a cylinder doesn't ignite, its hot contents are dumped into the converter. This hot fuel can create cracks in the honeycomb, and these cracks can lead to sections breaking off. The broken sections will cause additional damage inside the converter. Our technicians will need to replace the converter, as it can't be repaired.
Black Exhaust Smoke
Regular exhaust smoke is white and whispy, and it's a sign your converter is doing its job. If you see thick black smoke from the exhaust, your converter has probably failed. This smoke has a strong sulfur stench, and it contains high levels of toxic chemicals. Your converter could have failed due to age or damage. Our technicians will need to investigate.
If your car is producing black smoke, it won't pass an emissions test, and you could receive a citation for the toxic chemicals it's releasing. Once we fix the problem, your exhaust smoke should return to normal.
If you see these or any other problems, don't hesitate to
make a service appointment at DARCARS Toyota of Silver Spring right away. Our trusted technicians are trained professionals with crucial knowledge making them the best ones for the job. We hope this blog has helped inform you better about your vehicle's engine. If you wish to learn more about car maintenance, check out these
essential auto services you can find in Silver Spring, MD, today!