Loss of power and mpg. The check engine light should also come on.
the check engine light will not come on if the catalytis converter is going bad..it will however get very hot and start to glow red.
The check engine light will illuminate with a bad cat if the vehicle has a post catalytic (downstream) O2 sensor.
Your converter is clogged and needs replacing.
If it is red it means it is clogged and needs replacing. If you do not replace it your fuel mileage and power will suffer.
Either the converter is partially clogged and needs replacing or you have a miss in the engine which is dumping raw fuel into the converter where it is being burned.
It's ingesting raw unburnt fuel or the converter is partially clogged and needs replacing.
It is either clogged and needs replacing or you have one or more cylinders that is not firing properly and unburnt fuel is being ignited in the converter. On an 18 year old car I would suspect the converter is clogged.
if catalictic converter or any other part of the exhaust is clogged, it will cause engine to bog and die.exhaust needs to be clear to allow exhaust gases to escape
A catalytic converter with holes in it needs replacing. It affects not only emissions, but the performance of the engine. Replace the converter.
Underinflated tires, carrying too much weight in vehicle, excessive speed, engine that needs a tuneup, brakes dragging, or partially clogged catalytic converter.
If it came from the factory with a converter then it needs a converter.
tap on it and if it rattles ,its done
A failed catalytic converter is one of hundreds of parts that can cause the check engine light to be on.
Needs tune-up? fuel filter? Air filter? Plugged catalytic converter? Needs tune-up? fuel filter? Air filter? Plugged catalytic converter?