Don’t Ignore these 4 Warning Signs of a Catalytic Converter Problem

Ken’s Muffler & Brakes • 11 January 2025
A man is working on the underside of a car in a garage.

The catalytic converter is an important component of your vehicle’s exhaust system, responsible for reducing harmful emissions and enabling proper engine performance. When it begins to fail, your vehicle’s efficiency and environmental impact are at risk. Recognizing the warning signs of a catalytic converter problem can help you address the issue before it leads to more severe trouble. At Ken’s Muffler & Brakes, we provide expert catalytic converter replacement in the greater Dallas area. Here’s a look at four symptoms of a catalytic converter problem.


Reduced Engine Performance

One of the first signs of a failing catalytic converter is a noticeable drop in engine performance. You may experience sluggish acceleration, reduced power, or difficulty climbing hills. This occurs because a clogged catalytic converter restricts exhaust flow, making it harder for your engine to function efficiently.


Decreased Fuel-Efficiency

A faulty catalytic converter can cause your vehicle to burn more fuel than usual. This happens because the engine has to work harder to push exhaust gases through the clogged or damaged converter. If you notice a significant drop in gas mileage, it’s worth having your catalytic converter inspected as part of the diagnosis.


Check Engine Light Illumination

The check engine light is often triggered when there’s an issue with the catalytic converter. Modern vehicles are equipped with oxygen sensors that monitor the efficiency of the converter. If the sensors detect abnormal readings, they will activate the check engine light. A diagnostic scan can confirm whether the catalytic converter is the source of the problem.


Rotten Egg Smell from the Exhaust

A common indicator of a catalytic converter problem is a strong sulfur or “rotten egg” smell coming from the exhaust. This odor is caused when the converter is no longer able to effectively neutralize hydrogen sulfide. If you detect this smell, it’s a sign that your catalytic converter may be failing and needs immediate attention.


Catalytic Converter Replacement in Dallas, TX

For catalytic converter replacement in Dallas and the surrounding area, contact Ken’s Muffler & Brakes at  214-308-2320. Feel free to give us a call to schedule an appointment for car care in Dallas! 

by Ken’s Muffler & Brakes 10 September 2025
When your vehicle overheats, it’s more than just an inconvenience—it’s a warning sign that something under the hood isn’t functioning properly. An overheated engine can cause serious damage if not addressed quickly. At Ken’s Muffler & Brakes, we provide expert cooling system repair in the greater Dallas area. Here are four issues that often lead to an overheating vehicle. Failing Thermostat The thermostat is a small but essential component that controls the flow of coolant through your engine. If the thermostat gets stuck in the closed position, coolant cannot circulate, and heat builds up rapidly. Drivers may notice the temperature gauge rising unusually fast, signaling that the thermostat may be malfunctioning. Replacing a faulty thermostat is a relatively simple repair, but ignoring it can result in significant engine damage from overheating. Low Coolant Levels Coolant plays a critical role in keeping your engine at the right temperature. If your coolant levels are low, your car will struggle to regulate heat, especially in hot weather or heavy traffic. Leaks in the radiator, hoses, or water pump are often the culprits behind coolant loss. Without enough coolant circulating through the system, the engine cannot dissipate heat properly, which can quickly lead to overheating. Radiator Problems The radiator is responsible for cooling down the hot coolant before it circulates back into the engine. When the radiator becomes clogged, damaged, or develops leaks, it cannot perform this crucial function. A clogged radiator may be caused by debris buildup, while leaks are often the result of corrosion or physical damage. Because the radiator is central to the cooling process, problems with it can easily lead to overheating. Malfunctioning Water Pump The water pump enables coolant to flow properly throughout the engine. If the pump fails, coolant will not move efficiently, and the engine will begin to overheat. Signs of a failing water pump include coolant leaks and whining noises. Prompt replacement is necessary to prevent serious damage. Cooling System Repair in Dallas, TX For expert auto repair in Dallas and the surrounding area, contact Ken’s Muffler & Brakes at  214-308-2320  . Feel free to give us a call to make an appointment!
by Ken’s Muffler & Brakes 10 August 2025
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