Q: Catalytic converter going bad. Can I prolong its life?

asked by on October 17, 2016

The mechanic, says my cat, converter is going bad, I don't have the money for a new one, is there any thing I might do, to prolong it's life.

My car has 120000 miles.
My car has an automatic transmission.

Catalytic Converter Replacement $288.41 - $1959.69 Get a Quote

Unfortunately, there is not much that can be done to prolong the life of the catalytic converter as they are very expensive to manufacture, thus the high cost of replacement. In order for the converter to work effectively, there are catalysts inside that require an enormous amount of heat to produce the chemical reactions needed to break down exhaust gases. When the materials inside the converter break down, this is what causes the converter to fail to work properly. You may be able to have a mechanic take a look at the vehicle as a whole to see if there is anything that can be done.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Shaking when gas pedal pressed
Hello there, it is not uncommon to have variations in higher mileage vehicles though they should not be this bad. A violent shaking would indicate a fault. The most common causes would be spark plugs (https://www.yourmechanic.com/article/symptoms-of-bad-or-failing-spark-plugs) and wires, fuel pressure...
Battery light came on while driving
Hello there, a few different faults can cause the vehicle to die like this while running. The most common would be the fuel pump (https://www.yourmechanic.com/services/fuel-pump-replacement), battery (https://www.yourmechanic.com/services/battery-replacement), alternator (https://www.yourmechanic.com/services/alternator-replacement), battery cable (https://www.yourmechanic.com/services/battery-cable-replacement), or a wiring fault. I'd recommend you get...
Saturn Ion wont change to 4th gear, its an automatic. The P0700 code comes up saying transaxal module. What does this means?
Hello. The code means there is either an electrical or mechanical (hydraulic) fault in the transmission, or the transmission "controls" and in your case that fault is causing your transmission not to shift. The fault itself can range from the...
Temperature gadget goes up while in traffic
This can be caused by a number of things such as low coolant levels (https://www.yourmechanic.com/services/top-off-coolant), a faulty thermostat (https://www.yourmechanic.com/services/thermostat-replacement), or a failing coolant fan switch (https://www.yourmechanic.com/services/thermo-coolant-fan-switch-replacement). As you may know the coolant fan switch helps to maintain the proper coolant...
Back brake light/ tail lights not working properly
Hello. The brake lights are controlled by stoplight switch, contacted by the pedal. If they are cutting off after coming to a complete stop then that may be a sign that there is an issue with the switch, circuit, or...
car was bought o. Friday wouldn't start saturday
Hi there. If the camshaft is broken, it is very unlikely that it was caused by your son from trying to start it too much. The starter engages the ring gear on the flywheel which is bolted to the crankshaft,...
my right back side lights and blinker are not working. my question is how do i check the fuse
Hello, and thank you for writing in. To check the fuse you must check the electrical resistance, or take a look at the filament inside to make sure it is not broken. This filament is the fine piece of metal...
Where is the location of transmission solenoid for 2000 Honda Accord
If you are referring to a transmission shift solenoid(s) that component is within an internal transmission assembly known as the transmission "valve body". The valve body can sometimes be removed from the car for service, including replacement of the solenoids....
2010 Chevy Traverse starting
If the starter is failing to disengage, that is typically a starter or starter circuit problem. The status the battery would be irrelevant and if the mechanic claims an "overcharged" battery is causing the starter to "run on", I would...

Related articles

How Exhaust Systems Work
It It all starts in the engine In order to understand how the exhaust of a vehicle works, there must be a basic understanding of the engine as a whole. The internal combustion engine in its simplest form is a...
What Does a Catalytic Converter Do?
The The modern automotive exhaust system is much more advanced than what was available even just a couple of decades ago. After recognizing that the average automobile was one of the primary sources of global pollution, the US government enacted...
The Best Used Cars to Buy If You’re a Massage Therapist
If If you're a massage therapist, one of the cornerstones of your business has to be that you don’t keep your clients waiting. That means you need a vehicle that’s reliable. You also will have to move your gear, including...