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catalytic converters

Hello. It is possible that the catalytic converter is clogged causing a lack of power in the car. It is possible that cleaning out the catalytic converter will fix the problem, but most of the time the catalytic converter needs...

Hi, thanks for writing in. This is likely an issue related to the catalytic converter (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-catalytic-converter) which may be the converter itself or the O2 sensor (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-oxygen-sensor) which is a sensor that monitors the productivity of the converter as it...

Your truck has 3 catalytic converters. One near each exhaust manifold and one at the Y-pipe.

Hi, the Check Engine Light flashing commonly indicates a misfire in the engine. The most common cause of an engine misfire on this particular car would be the ignition coil. The ignition coil can generate an output voltage on the...

Are there other codes set? This code, by itself, P0421 (https://www.yourmechanic.com/article/p0421-obd-ii-trouble-code-warm-up-catalyst-efficiency-below-threshold-bank-1-by-andrew-quinn) indicates that the engine management system detected the catalytic converter is performing below expected standards. This means the engine is sending contaminants (unburned fuel, oil fumes, etc.) down the...

The most common causes of Diagnostic trouble code P0430 (https://www.yourmechanic.com/article/p0430-obd-ii-trouble-code-catalyst-system-efficiency-below-threshold-bank-2-by-spencer-clayton) setting are a faulty catalytic converter, engine misfire, fuel injector leakage, engine mechanical damage, faulty oxygen sensor outputs and exhaust leaks. Additionally, in your circumstance, malfunctions in the charge air...

This would depend on the code that is retrieved from the check engine light. It never hurts to get a second opinion. I would recommend having another technician, such as one from YourMechanic, come to scan your vehicle for trouble...

Hi There, It sounds like you may have a clogged catalytic converter. A clogged or failing catalytic converter (https://www.yourmechanic.com/services/catalytic-converter-replacement) can cause the vehicle to have poor fuel economy. As you may already know, the catalytic converter converts toxic exhaust gases...

Catalytic converters (https://www.yourmechanic.com/services/catalytic-converter-replacement) do have a federal required warranty that most people are unaware of, talk to your dealer to find out if you are still covered. Early catalytic converter failure can be cause by other factors including coolant contamination...

There are two O2 sensors. One before and one after the catalyst. The one before is used for fuel control for fuel injections and the one placed after the catalyst is used to measure catalyst efficiency. A scanner will be...

A vehicle with 182,000 miles is likely due for a catalytic converter. Most of the time it does mean you need a new catalytic converter. But there are a couple of other things that are prudent to take a look...

This vehicle will have one or two catalytic converters since it only has one bank of exhaust. It is very unlikely that this vehicle even has two catalytic converters. It will, however, have two oxygen sensors for every one catalytic...

Hello. The catalytic converter acts as a filter (https://www.yourmechanic.com/article/what-does-a-catalytic-converter-do) for exhaust gasses emitted from the vehicle. This purpose of this is to reduce the pollutants that are expelled into the environment. The first thing you could try is adding a...

You need to pull out the coil and check to see if there is oil in the spark plug hole, or on the plug wire boot. If there is, then replace the valve cover and spark plug boots after cleaning...

When a catalytic converter begins to fail, the computer will give a reading of the code P0420 and/or code P0430 which pertains to catalyst efficiency. The catalytic converter is, in a way, like a metal filter that traps toxic gases...

If you are not experiencing drivability issues, the catalytic converters may be starting to become inefficient. Catalytic converters often times are ruined by raw fuel in your exhaust system. Misfires that go unresolved are usually the cause of this. A...

Hello. It's quite possible that there is no one at fault here. It may just be unfortunate timing. I'm assuming that you have had the codes read (https://www.yourmechanic.com/article/how-to-read-and-understand-check-engine-light-codes-by-jason-unrau) and that is why you have decided you need to replace the...

Hello! It sounds like you may have a clogged catalytic converter or potentially a faulty Oxygen sensor. The catalytic converter converts toxic exhaust gases into less harmful pollutants that are suitable to be expelled into the atmosphere. When this is...

The short answer is yes. I'll assume that the catalyst was taken off because it was damaged. They are expensive parts and many owners choose to replace catalysts with pipes or mufflers, but there are two reasons why that is...

If the cat monitor will not finish and pass after multiple tries then you may have a weak sensor or a catalyst (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-catalytic-converter) that is bad. I'd suggest having the vehicle scanned to test the O2 sensors for slow or...