News

Commercial trucks are the backbone of logistics and transportation, but like any vehicle, they experience mechanical issues. One problem is the engine overheating, which, needless to say, will lead to repairs and downtime. Understanding the causes of overheating engines in heavy-duty trucks can help fleet managers and drivers prevent these issues. and keeping more trucks on the road.

Here are engine overheating causes in commercial trucks:

Cooling System Failures

The cooling system is responsible for maintaining an optimal engine temperature. If any component fails, such as the radiator, water pump, or thermostat, the engine can quickly overheat. Leaks in the radiator or hoses also reduce coolant levels, impairing the system's ability to regulate temperature. Preventative maintenance, including routine inspections, are the best way to catch any issues ahead of time. Follow the scheduled maintenance plan for your truck, which will include information on coolant flushes and other checks.

Low Coolant Levels

Coolant absorbs heat from the engine and dissipates it through the radiator. Low coolant levels can result from leaks, leading to insufficient heat absorption and increased risk of overheating. Regularly checking and maintaining coolant levels will help prevent this issue

Faulty Thermostat

The thermostat regulates the flow of coolant based on engine temperature. If it becomes stuck in the closed position, coolant circulation will be restricted, causing the engine to overheat. A truck mechanic can replace the faulty thermostat to prevent overheating.

Blocked Radiator

A blocked or dirty radiator impedes airflow, reducing its ability to dissipate heat. Debris or corrosion inside the radiator can also obstruct coolant flow. Regular cleaning and maintenance of the radiator contributes to efficient heat exchange and prevents overheating.

Overloading

Overloading a truck beyond its capacity places additional stress on the engine, causing it to work harder and generate more heat. This can lead to overheating, especially during long hauls or in hot weather conditions. Adhering to load limits is important for many reasons and truck engine health is one of them.

Damaged Fan

The fan draws air through the radiator to cool the engine. A malfunctioning fan or broken fan belt reduces airflow, leading to higher engine temperatures. Regular inspections of the fan and belt can identify issues, giving you a chance to rectify them before they cause overheating.

Truck Overheating Engine Repair in Salt Lake City, Utah

Engine overheating in semi-trucks and other commercial trucks can stem from various causes, including low coolant levels and thermostat malfunctions. Regular maintenance and inspections are key to identifying issues early and ensuring your truck operates efficiently. While some fleet managers and drivers prefer to practice reactive maintenance vs preventative maintenance, the cooling system is worth keeping an eye on since it will impact the engine.

Talk with the team at Commercial Trucks, Sales, and Service if you need cooling system maintenance or repairs for an overheating truck engine. We are the trusted name for service with businesses across the area and will assist you with getting your truck roadworthy again. Learn more about our truck repair services here.