What are the symptoms of a faulty car catalytic converter?
4 Answers
The main manifestations of a failed catalytic converter are: 1. Unpleasant exhaust odor. 2. Engine overheating, possibly leading to premature excessive wear. 3. Lack of engine power, sometimes accompanied by abnormal noises such as backfiring. 4. Increased fuel consumption, with some vehicles experiencing a significant rise in fuel usage. Precautions for using a car catalytic converter: 1. Do not use leaded gasoline. 2. Avoid prolonged idling (open-loop control state). 3. Avoid sudden changes in engine speed. 4. Do not set the ignition timing too late. 5. Avoid prolonged unsuccessful engine starts. 6. Do not test for spark by pulling the high-voltage wire for extended periods. 7. When measuring cylinder compression, disconnect the central control connector of the fuel pump to stop the injectors from spraying fuel into the cylinders. 8. If a cylinder is found to be malfunctioning, stop the vehicle promptly to inspect and rectify the issue. 9. Avoid factors that cause an overly rich air-fuel mixture, such as leaking fuel injectors, a failed fuel pressure regulator (excessive fuel pressure), failed oxygen sensor, or failed mass air flow sensor. 10. Generally, a catalytic converter requires no maintenance if used correctly, so avoid unnecessary disassembly. If replacement is needed, ensure it matches the engine specifications.
Recently when driving my old SUV, I noticed the acceleration was particularly sluggish - pressing the gas pedal felt like there was no power, making the whole driving experience terrible. When I took it for repairs, the Check Engine light was constantly on, and there was a foul smell from the exhaust pipe, somewhat like the sulfurous odor of rotten eggs. Fuel consumption had also increased by nearly 20% compared to normal, especially noticeable on highways. The mechanic said the catalytic converter was clogged, and over time this could cause engine overheating or more serious failures, recommending early replacement. As someone who frequently takes road trips, this reminded me to pay more attention to exhaust system maintenance - after all, driving safety comes first, and we shouldn't wait until major failures occur to regret it.
My little car has been acting up lately, and I always feel uneasy when the yellow warning light on the dashboard comes on. The car shakes violently when accelerating, and sometimes it's even hard to start. My friend said the exhaust smells terrible. The auto repair shop diagnosed it as a bad catalytic converter, probably clogged from years of carbon buildup. The exhaust color looks normal, but the smell is pungent, and fuel consumption has increased significantly, costing me dozens more in gas money each month. Thinking about how this issue disrupts travel and could easily lead to traffic tickets, I realize I need to schedule regular check-ups in the future.
I always pay attention to the environmental performance of cars. A faulty three-way catalytic converter can cause excessive exhaust emissions, with harmful gases such as nitrogen oxides increasing sharply. I have observed that after starting the car, there is a lack of power during acceleration, and sometimes the exhaust pipe gets extremely hot with a particularly strong odor. This not only pollutes the environment but also accelerates the wear of other components and increases fuel consumption, wasting resources. I recommend that everyone quickly check and repair the car report if they encounter similar situations.
