Skip the auto shop - Our mechanics make house calls

Q: I had a catalytic converter installed in my vehicle in 2013, now I'm being told I need a new one. How long is it suppose to last?

asked by on

I had a new catalytic converter installed in 2013 on my 2005 Toyota sienna van in the vehicle had 180,000 miles at a time. Now my vehicle has 245,000 miles and I am being told that I need a new catalytic converter. how long are they supposed to last?

A: Hello. Most vehicles do not have to have th...

Hello. Most vehicles do not have to have the catalytic converter replaced unless it becomes damaged due to road debris or it overheating severely. With that said, it is possible your car may be running a bit too rich (too much fuel in the air/fuel mixture), which can cause the catalytic converter to overheat.

When this happens it can become clogged or filter excess gases poorly, which will cause the vehicle to run very poorly as a result (think of a sink being backed up), not allowing it to flush out toxic gases which become backed up inside the vehicle’s exhaust system. If you not experiencing any drivability concerns, I would ask the person why they suggested having it replaced. If you would like to have the car checked for a second opinion, a certified technician from YourMechanic can come to your home or office to give the vehicle a complete inspection.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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!

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: What is dtc p0705 mean

Hi there. Diagnostic trouble code P0705 indicates that the Engine Control Module (ECM) or Transmission Control Module (TCM) has received an input error from the Transmission Range Sensor (TRS). This switch is also known as a pressure switch, Park Neutral...

Q: Check Engine light; catalytic converter

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...

Q: Car not starting

Hello. If your engine is not cranking over then most of the time it is a problem with either the battery or the starter. The battery would need to be load tested and the starter checked. If it is cranking...

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.