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! 

4 Common Check Engine Light Triggers that Should Be Addressed ASAP

by Ken’s Muffler & Brakes • 10 July 2025
When your check engine light comes on, it’s easy to ignore—especially if your vehicle still seems to be running fine. However, that glowing warning on your dashboard is your car’s way of telling you that something’s wrong under the hood. While some issues may be minor, others can soon lead to major damage if not addressed in a timely manner. At Ken’s Muffler & Brakes, we provide expert check engine light diagnostics and repair in the greater Dallas area. Here are four common check engine light triggers that should be resolved ASAP. Faulty Oxygen Sensor A malfunctioning oxygen sensor is one of the most common reasons the check engine light turns on. This sensor monitors how much unburned oxygen is in the exhaust and helps regulate your engine’s fuel-to-air ratio. When it fails, your engine can run inefficiently, causing poor gas mileage and increased emissions. If left unaddressed, it can also cause issues with your catalytic converter, resulting in a costlier repair. Failing Catalytic Converter The catalytic converter is essential for reducing harmful emissions. If it's failing, your vehicle will not only emit more pollutants but also suffer from reduced performance and fuel-economy. This is a problem that requires immediate repair. Worn Spark Plugs or Ignition Coils Spark plugs and ignition coils work together to ignite the air-fuel mixture in the engine cylinders. If either begins to fail, your engine can misfire, leading to rough idling, reduced power, and poor acceleration. Ignoring this issue can result in further engine trouble, and it should be diagnosed as soon as possible. Mass Airflow Sensor Issues The mass airflow (MAF) sensor measures the amount of air entering the engine and helps determine the proper fuel delivery. When it fails, your car may experience stalling, hesitation, and poor fuel-economy. This component is critical to engine performance, and a faulty MAF sensor can lead to worsening car trouble if not promptly resolved. Check Engine Light Diagnostics & Repair in Dallas, TX For 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 schedule an appointment!

Why a Pre-Trip Car Inspection Is Essential Before a Road Trip

by Ken’s Muffler & Brakes • 6 June 2025
Planning a road trip can be exciting, but before you set out on your adventure, it’s important to ensure your vehicle is ready for the journey. At Ken’s Muffler & Brakes, our local mechanics can get your vehicle ready for your voyage. Here are five reasons to have your car inspected before you hit the road. Catch Small Problems Before They Become Big Ones Your vehicle might seem to be running fine, but underlying issues can go unnoticed until they become serious. The mechanic can identify potential trouble areas such as worn brake pads, low fluid levels, or minor leaks. By fixing these problems ahead of time, you can avoid being stranded on the side of the road and reduce the risk of facing expensive emergency repairs. Ensure Your Tires Are Road-Ready Tires are critical to your car’s performance and safety, especially on long drives. A professional inspection includes checking tire pressure, tread depth, and overall condition. Worn or underinflated tires can increase your chances of a blowout, reduce fuel-efficiency, and compromise your handling in wet conditions. Verify the Reliability of Critical Systems Long drives put added stress on your engine, brakes, and cooling system. The mechanic can inspect these essential components to ensure they are functioning properly. The last thing you want is to deal with a breakdown in an unfamiliar area far from help. Knowing your vehicle is in good working condition allows you to travel confidently, no matter the distance. Make Sure Lights and Wipers Are Fully Functional Visibility is vital for safe driving, especially if your trip involves night travel or unpredictable weather. During an inspection, your mechanic can test headlights, brake lights, turn signals, and windshield wipers. Replacing a burnt-out bulb or a streaky wiper blade might seem minor, but these small updates can make a big difference when you’re out on the open road. Improve Fuel-Efficiency and Performance An inspection often includes checking filters, spark plugs, and fluid levels, all of which contribute to your vehicle’s overall efficiency. A well-tuned car performs better and uses fuel more efficiently, saving you money at the pump over the course of your trip. Auto Maintenance in Dallas, TX For auto maintenance 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!
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