Rattling Noises. Your catalytic converter consists of small, honeycomb-shaped components that can cause a rattling sound when broken. If your catalytic converter is broken, this rattling should be loudest when the car starts, and should get worse over time.
Most catalytic converter failures fall under one of three categories: Overheated, melted or broken converters. Coated/oil-fouled substrate.
3 Signs You Need a Catalytic Converter Replacement #1. Decreased Engine Performance. If a catalytic converter develops any issues, it may have an effect on the vehicle’s engine since it’s installed within the car’s exhaust system. #2. The Check Engine Light Appears. #3. You Hear A Rattling Noise.
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.
A bad catalytic converter will give off higher emissions than allowed by the state. So a car with a malfunctioning catalytic converter will not pass a vehicle inspection. And that means you won’t be able to drive your vehicle legally.
A faulty exhaust manifold gasket will produce an exhaust leak that will sound like a hissing or tapping sound coming from the engine. The sound may be especially pronounced during a cold start or during acceleration.
Blocked Catalytic Converters Your catalytic converter might be suffering from a blockage. The air-fuel mixture passing through your catalytic converter can become too rich and this can lead to a blockage. This often leads to a car jerking when the motorist presses the gas.
A Catalytic Converter Can Be Driven Indefinitely Driving with a bad catalytic converter is not too dangerous. If some small parts of your catalytic converter is plugged, you can still drive your car as usual. In the case that the catalytic converter is totally plugged, it will prevent you from running your vehicle.
A faulty catalytic converter will trigger a check engine light. In addition, deteriorated spark plugs or a broken oxygen sensor can make your catalytic converter to fail. It becomes difficult to keep your car running if you take a lot of time before replacing a faulty catalytic converter.
The catalytic converter, which converts harmful emissions into harmless gas, often lasts 10 years or longer and should be replaced only when needed. It can become clogged, physically damaged, or contaminated by oil or engine coolant.
Increased Horsepower Cars that have their catalytic converters removed experience an increase in engine horsepower. Removal of catalytic converters from cars allows exhaust gases to exit their engines much faster and at higher levels. A damaged “cat” should trigger a Check Engine light.
How long does a catalytic converter last? Many factors impact the lifespan, but generally, a catalytic converter should last between 70,000 and 100,000 miles. This can be affected by how the car is used.
There are between 3-7 grams of platinum group metals in a standard catalytic converter, but the amount varies based on manufacturer and model. Keep in mind that the minimum lot size we accept for smelting and refining is 500 catalytic converters or 1000 pounds of loose catalyst.