![]() ![]() Once the engine reaches its optimal operating temperature, the thermostat opens, allowing the coolant to flow through the radiator and cool down before recirculating through the engine.Īs the coolant flows through the radiator, If the engine is too cold, the thermostat remains closed, allowing the coolant to circulate only through the engine block and cylinder head until the engine warms up. The coolant then flows through the engine block and cylinder head, where it absorbs the heat generated by the combustion process.įrom there, the heated coolant flows through the thermostat, which regulates the flow based on the engine’s temperature. The coolant flow in the 5.9 Cummins engine begins with the water pump, which pulls the coolant from the radiator and circulates it through the engine. By regularly checking and maintaining these components, you can prevent overheating and other potential problems that could lead to costly repairs. Note, understanding the components of the coolant system in the 5.9 Cummins engine is crucial for maintaining its health and performance. It’s usually located behind the dashboard and is connected to the engine’s coolant system.Īs the engine circulates the coolant through the system, some of the heated coolants flows through the heater core, which heats the air that’s blown into the cabin by the vehicle’s HVAC system. The heater core is a small radiator-like component that’s responsible for heating the cabin of the vehicle. The expansion tank also serves as a visual indicator of the coolant level, allowing you to monitor the system’s health and prevent potential problems. It’s usually located near the radiator and is designed to prevent coolant from overflowing out of the system. The expansion tank, also known as the overflow tank or coolant reservoir, is responsible for storing excess coolant as the engine heats up and the coolant expands. The coolant lines are usually made of rubber or metal and are designed to withstand the high temperatures and pressures of the engine. They connect the radiator to the engine, the water pump to the thermostat, and the heater core to the engine, among other connections. The coolant lines are a series of hoses and pipes that transport the coolant through the system. When the engine reaches its operating temperature, the thermostat opens, allowing the coolant to circulate freely. When the engine is cold, the thermostat is closed, which allows the engine to warm up more quickly. It’s usually located at the engine’s front and is designed to open and close as needed to regulate the engine’s temperature. The thermostat is a small, valve-like component that regulates the flow of coolant through the engine. It’s usually located on the front of the engine and is driven by a belt connected to the crankshaft.Īs the engine runs, the water pump circulates the coolant through the system, keeping the engine at a safe operating temperature. The water pump is responsible for circulating the coolant through the engine and the radiator. It’s a large, metal component with a series of thin, flat tubes that allow the coolant to flow through them.Īs the coolant passes through the tubes, the heat is dissipated, and the coolant is cooled before being recirculated through the engine. The radiator is responsible for cooling the engine coolant as it flows through the system. Here’s a closer look at the main components of the coolant system: 1. It helps to regulate the engine’s temperature and prevent overheating, which can cause significant damage to the engine if left unchecked. Cummins- How to the coolant flow in the engine.Īs I mentioned earlier, the coolant system is a critical component of the 5.9 Cummins engine. In this guide, we’ll provide an overview of the 5.9 Cummins coolant flow diagram and the key components involved. Related Article: Chevy 350 Coolant Flow Diagram ![]() Understanding the coolant flow diagram and the main components of the coolant system is essential for maintaining the engine’s health and performance. The coolant flow diagram is a vital component in the 5.9 Cummins engine, as it allows for proper circulation of coolant to prevent overheating and ensure optimal performance. By mastering the 5.9 Cummins coolant flow, you can optimize your engine’s performance and avoid costly repairs. Regular maintenance and upkeep of the coolant system are also critical for ensuring optimal performance. Understanding the flow path through the engine and its components, including the radiator, water pump, thermostat, coolant lines, expansion tank, and heater core, is essential for diagnosing and resolving flow issues. The 5.9 Cummins coolant flow diagram is a crucial component in maintaining optimal engine performance. ![]()
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