The engine in your semi truck works hard to keep you moving, often for long hours and across challenging terrain. When an engine overheats, it can lead to costly downtime and repairs, affecting your bottom line. Understanding the common causes of engine overheating can help you prevent this issue and keep your truck running smoothly. At Blue Gray Towing, we provide semi truck cooling system repair in the greater Hagerstown area. Here are four reasons that semi truck engines overheat.

Low Coolant Levels

Coolant plays a vital role in regulating your engine’s temperature. If your coolant level is too low due to leaks, your engine won’t have the necessary fluid to dissipate heat effectively. Over time, hoses, gaskets, or the radiator may develop cracks, leading to coolant loss. 

Faulty Thermostat

The thermostat controls the flow of coolant between the engine and the radiator. If it gets stuck closed or malfunctions, it can block the coolant from circulating properly, causing the engine temperature to rise rapidly. Replacing a faulty thermostat is a relatively simple fix that can save you from more significant engine problems.

Clogged or Damaged Radiator

Your radiator is essential for cooling down the coolant before it returns to the engine. As the miles add up, dirt, debris, and mineral deposits can clog the radiator, reducing its efficiency. Also, damage from road debris or corrosion can impair the radiator's ability to cool the engine. Regular radiator maintenance is key to preventing overheating.

Malfunctioning Water Pump

The water pump is responsible for circulating coolant throughout the engine and radiator. If it fails, the coolant won’t flow properly, leading to an increase in engine temperature. A failing water pump may produce a grinding noise, leaks, or inconsistent engine temperatures. Promptly replacing a faulty water pump is essential to prevent severe engine damage.

Semi Truck Repair in Hagerstown, MD

When you need semi truck repair in Hagerstown, MD and the surrounding area, contact Blue Gray Towing at (301) 241-7461. Our local diesel mechanics are experts at identifying and fixing semi truck engine problems. We also offer 24/7 heavy duty towing in greater Hagerstown!