How can you tell if your catalytic converter is gone?
Among the symptoms of a bad catalytic converter are:
- Sluggish engine performance.
- Reduced acceleration.
- Dark exhaust smoke.
- The smell of sulfur or rotten eggs from the exhaust.
- Excessive heat under the vehicle.
What does a failing catalytic converter smell like?
Failing Catalytic Converter (Sulfur Smell) Over time, the catalytic converter can become overheated, contaminated with gasoline in the exhaust or simply wear out. When this happens, you’re likely to notice a rotten egg, sulphurous smell coming from the exhaust. You may even smell it in the cabin.
What happens if your catalytic converter goes out?
A convert can often last for 10 years or more, but they can become contaminated, clogged, overheated or physically damaged — leading to sluggish engine performance, cause a check engine light and, eventually, engine shutdown.
What does a bad catalytic converter smell like?
A properly working catalytic converter will convert hydrogen sulfide into odorless sulfur dioxide. When failing, you may notice a sulfuric, rotten egg-like smell coming from the exhaust. Unburnt fuel left in the exhaust by the bad catalytic converter produces the odor, and may even cause dark exhaust smoke. 4.
How many cats are in a Volvo catalytic converter?
There Are “Two” Cats In One… Many of the catalytic converters off of Volvo’s have “two” cats even though they look like one unit (see picture above). The smaller part is the pre-cat and the larger is the main cat but they are priced as one unit based on recovery tables and values.
Can a bad catalytic converter cause a check engine light?
Check Engine Light Comes On A bad or failing catalytic converter can also cause an illuminated Check Engine Light. The oxygen sensor and air-fuel ratio sensor in modern vehicles monitor the efficiency of the catalytic converter by tracking the gas levels in the exhaust.
Why does my catalytic converter make a rattling noise?
Ammonia (NH 3) odor may also indicate poor catalyst function. If the catalytic converter’s housing is discolored or warped, there may be internal leakage or overheating. A rattling noise when starting the engine might indicate a broken catalyst. Failing the annual or semi-annual emissions test might also be linked to a failed catalytic converter.