Q: How can we clean a catalytic converter?

asked by on

Can we clean a catalytic converter? How does it get blocked?

Hi there:

The catalytic converter has one job: to reduce harmful emissions in your car’s exhaust to help mitigate pollution. It uses a catalyst (actually more than one) to convert harmful chemicals like carbon monoxide, hydrocarbons and nitrogen oxides into harmless substances. Overtime, the metal catalyst will become clogged with carbon deposits or "emissions". Although there are a few additives that some mechanics recommend for removing carbon from the exhaust system and the catalytic converter, there are multiple negative side-effects such as reduced engine performance, lower fuel economy or overheating. It’s always best to replace the catalytic converter once it’s been determined that it’s clogged.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. How can we clean a 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

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.