4 Common Check Engine Light Triggers that Should Be Addressed ASAP

Ken’s Muffler & Brakes • 10 July 2025
A man is working on a car engine with a wrench.

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!

4 Maintenance Tips for Keeping Your Engine in Great Condition

by Ken’s Muffler & Brakes • 5 May 2025
Routine maintenance and smart driving habits can go a long way toward preventing engine trouble and saving you from expensive repairs. Whether you drive daily or just occasionally, keeping your engine healthy should be a top priority. Here are four practical tips for helping your engine stay in great condition. Stay on Top of Oil Changes One of the most critical tasks in engine care is changing the oil on schedule. Engine oil lubricates moving parts, reduces friction, and helps prevent overheating. Over time, oil breaks down and collects dirt and debris, losing its effectiveness. Neglecting oil changes can lead to excessive wear and even engine failure. Always follow the manufacturer’s recommended intervals, and use the type of oil specified for your vehicle to keep the engine running smoothly. Keep the Cooling System Maintained An overheated engine can quickly lead to serious damage, so maintaining your vehicle’s cooling system is essential. This includes keeping an eye on coolant levels, checking for leaks, and ensuring the radiator, hoses, and thermostat are all in good working order. The coolant keeps engine temperatures within a safe range, especially during long drives or hot weather. Flushing the cooling system periodically and replacing coolant as recommended will help prevent overheating and related engine issues. Replace Air Filters When Needed Air filters play a key role in protecting your engine from dirt, dust, and debris. A clogged air filter restricts airflow, making your engine work harder and reducing fuel-efficiency. Inspect the air filter regularly and replace it as needed, especially if you often drive in dusty environments. Listen to Your Engine Paying attention to how your engine sounds and feels can help you catch problems early. Unusual noises like knocking, grinding, or whining shouldn’t be ignored, and a change in performance or fuel-efficiency might also signal trouble. The sooner you investigate and address any warning signs, the better your chances of preventing serious engine damage. Don’t wait for the check engine light to come on—listen to what your car is telling you. Engine Repair & Maintenance in Dallas, TX For an experienced mechanic 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!
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