1. Reduced Engine Performance: A bad catalytic converter can restrict the flow of exhaust gas, leading to reduced engine power and acceleration issues.
2. Check Engine Light On: The check engine light may illuminate due to reduced efficiency of the catalytic converter affecting your car's emissions.
3. Sulfur-Like Smell: A pungent, rotten-egg-like smell may be noticeable when you're behind the steering wheel.
4. Increased Emissions: A failing catalytic converter can cause an increase in harmful pollutants in your vehicle's exhaust emissions.
5. Rattling Noise: A damaged or loose catalytic converter can produce a rattling noise when driving due to internal parts breaking or shifting.
6. Poor Fuel Economy: Inefficient conversion of exhaust gasses can result in decreased fuel efficiency.
7. Hesitation or Stalling: You might experience hesitation during acceleration or even engine stalling due to the blocked exhaust system.
8. Engine Misfires: Misfiring may happen because the oxygen sensors detect the incorrect amount of oxygen in the exhaust due to the faulty catalytic converter.
9. Loud or Hollow Exhaust Note: Changes in exhaust sound, like an abnormally loud or hollow noise, may occur due to the reduced efficiency of the catalytic converter.
10. Black Soot or Residue: You might notice black soot or residue on the rear of your vehicle where the exhaust exits, indicating incomplete fuel combustion.
It's important to note that some symptoms can be caused by other issues, so it's recommended to have a qualified mechanic inspect your vehicle to accurately diagnose and repair the problem.
