Engine Overheating: A Look at 4 Common Causes

Ken’s Muffler & Brakes • 10 September 2025
Silver Toyota Hilux pickup truck on a road, driving towards the viewer.

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 8 December 2025
Your car’s shocks play a vital role in keeping your ride smooth, stable, and safe. They help absorb bumps, maintain tire contact with the road, and support proper handling. When shocks begin to fail, the effects can quickly impact comfort and safety. At Ken’s Muffler & Brakes, we provide expert suspension repair in the greater Dallas area. Here are five warning signs that your shocks should be replaced now Your Ride Feels Excessively Bouncy One of the most common symptoms of worn-out shocks is a bouncy or unstable ride. If your car continues to bounce after going over a bump, it’s a sign that the shocks are no longer effectively absorbing impact. This excessive movement makes the vehicle feel less controlled. The Front End Dives When Braking Worn shocks can cause the front of your car to lurch forward when you press the brake pedal. This forward “nose dive” happens because the shocks are no longer keeping the car level during deceleration. Not only is this uncomfortable, but it also increases stopping distance, which can be dangerous in emergency situations. You Notice Uneven or Rapid Tire Wear Shocks help keep your tires firmly planted on the road. When they fail, the tires can bounce excessively, causing uneven patches of wear on the tread. These unusual wear marks are a strong indication that the wheels aren’t maintaining proper road contact. This not only shortens the life of your tires, but also reduces traction and control. Your Car Sways or Leans in Turns If your vehicle feels like it sways, leans excessively, or struggles to stay stable when turning, the shocks may no longer be providing adequate support. This instability is especially noticeable at higher speeds or on winding roads. Healthy shocks keep your car planted and level through curves. Once they weaken, the extra body roll increases the risk of losing control, making this a critical sign that replacement may be necessary. Fluid Is Leaking From the Shocks Shocks contain hydraulic fluid that allows them to absorb energy and dampen movement. If you notice oily residue or visible leakage on the shock, the internal seals have likely failed. Without fluid, the shocks cannot function properly. Suspension Repair in Dallas, TX For expert auto repair in Dallas, TX 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 greater Dallas!
by Ken’s Muffler & Brakes 13 November 2025
Your vehicle’s cooling system plays a vital role in maintaining engine temperature and preventing overheating. It circulates coolant through the engine and radiator to absorb and dissipate heat. When this system starts to fail, your engine can quickly become too hot, leading to serious damage and expensive repairs. Recognizing the early signs of cooling system trouble can help you address small issues before they become major problems. At Ken’s Muffler & Brakes, we provide expert cooling system repair in the greater Dallas area. Here are four common symptoms of a cooling system issue. Rising Engine Temperature One of the clearest signs of a cooling system issue is a rising temperature gauge on your dashboard. If it starts creeping into the hot zone, your system may not be circulating coolant properly. This could be caused by issues like a failing water pump, low coolant level, or a blocked radiator. Continuing to drive with a hot engine can lead to severe engine damage, so it’s best to pull over and let the engine cool down before investigating further. Coolant Leaks Under the Vehicle If you notice bright green, orange, or pink fluid (yours could be a different color) pooling under your car, there’s a strong likelihood it’s a coolant leak. The cooling system relies on maintaining proper coolant levels, and even small leaks can lead to big problems. Leaks often come from worn hoses, a cracked radiator, or a faulty water pump. It’s important to have a technician inspect and repair leaks promptly to keep your engine protected from overheating. Sweet Smell Coming from the Engine Bay Coolant has a distinctive sweet smell, and if you start noticing it while driving or after shutting off your car, it could mean coolant is escaping somewhere in the system. This odor can come from a small leak that isn’t yet noticeably accumulating or from coolant vaporizing on hot engine parts. Either way, it’s a sign that your system isn’t sealed properly and should be checked as soon as possible. Steam from Under the Hood If steam starts coming from under the hood, your engine is likely overheating. This commonly means that coolant isn’t flowing properly or that the radiator can’t cool it effectively. When this happens, pull over safely ASAP and turn off the engine to avoid serious damage. Be sure to let your engine cool before investigating the matter. Cooling System Repair in Dallas 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 schedule an appointment for car care in greater Dallas!
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