Q: Problems with my catalytic converter

asked by on

I am not quite sure what is wrong with my car. I believe it may be the catalytic converter.

Lets talk about the catalyst converter and what kind of problems it can cause a car to have when it fails. One of the most common types of failures is when it just quits doing its job. The computer has sensors before and after the converter they monitor the exhaust to see if the converter is doing its job of removing harmful contaminants from your vehicles exhaust. When the computer sees that the converter is no longer being a good filter it will set codes. These codes turn on your Check Engine Light. Although most likely you would feel no difference in the running of your car, your car would fail an emission test. Now another way a converter can fail is the plates inside of it can weld together and form a plug in the exhaust, if your engine runs long enough with this restriction it can cause damage, I have seen it cause head gasket failure even melt plastic intakes. But the good part here is you won’t need a light to know you will have a problem because your car would have lost power, you would be towing or driving it to the nearest shop. And finally another way for the converter to cause you issues those plates we just talked about, occasionally they can break loose inside and when they do it causes a very annoying rattle. This rattle can occur at different times under different conditions. If your car is having any of those issues, have a mechanic take a look at it for you to see if you need a catalytic converter replacement.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Problems with my catalytic converter

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: The back of my car seems unstable when driving on uneven roads.

You should have the vehicles suspension system inspected. Often, a broken trailing or control arm in the rear may render the vehicle unstable at higher speeds. Also look into rear shocks and stabilizer links. Consider hiring an experienced technician like...

Q: Sulphur blocking the catalytic converter

Hello. If you had an injector coil issue, then that will usually cause the converter to become clogged and fail. If it is clogged, then it needs to be replaced as driving it will not clear it up. You will...

Q: Power steering or transmission issue

There are a few different places that can cause a power steering leak. The fluid can leak from a power steering pump, the fluid lines, a steering rack, or even a power steering cooler. What you need to understand is,...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.