Semi trucks are the backbone of the logistics industry, moving goods across vast distances. However, they are prone to mechanical issues, with overheating being one of the most common problems. An overheating semi truck is not just a minor inconvenience—it can lead to severe engine damage, costly repairs, and significant downtime. It’s always best to address overheating ASAP to hopefully avoid major complications. At Billy Bob’s Repair & Tire, we provide expert mobile semi truck repair in the greater San Antonio area. Here’s a look at four common causes of semi truck overheating.

Cooling System Leaks

The cooling system in a semi truck is crucial for regulating engine temperature. It includes components like the radiator, hoses, water pump, and coolant reservoir. Any leaks within this system can cause a significant drop in coolant levels, leading to inadequate cooling of the engine. Common sources of leaks include cracked hoses, a faulty radiator, or a broken water pump. 

Faulty Thermostat

The thermostat in a semi truck plays a vital role in regulating the engine's temperature by controlling the flow of coolant. If the thermostat becomes stuck in the closed position, it can prevent coolant from circulating through the engine, causing it to overheat. Replacing a faulty thermostat promptly can prevent bigger problems.

Clogged Radiator

As the miles add up, the radiator can become clogged with debris. A clogged radiator restricts the flow of coolant, reducing its ability to dissipate heat effectively. This can cause the engine to overheat, especially during heavy hauling or in hot weather. Regular cooling system maintenance can help keep the radiator free from obstructions and ensure efficient cooling.

Malfunctioning Water Pump

The water pump is responsible for circulating coolant throughout the engine and the radiator. A malfunctioning water pump can result in inadequate coolant flow, leading to overheating. Common signs of a failing water pump include coolant leaks, unusual noises from the pump area, and fluctuating engine temperatures. 

24/7 Mobile Semi Truck Repair in San Antonio, TX

For roadside mobile semi truck repair in San Antonio and the surrounding area, contact Billy Bob’s Repair & Tire at (210) 796-3891. We can expertly handle your commercial vehicles’ repair needs. Feel free to give us a call today and we’ll arrive ASAP to get you back on the road!