What Causes Water to Gush Out of a Diesel Engine's Radiator?

1 Answers
MadelynFitz
07/29/25 6:20pm
Engine shutdown under high load or failure to use antifreeze. Below are detailed causes and solutions: 1. Engine shutdown under high load: Components like the coolant pump and radiator fan stop operating, preventing heat dissipation. Only the water around the cylinder block is used to dissipate heat from the block. A sudden high-load shutdown causes water to gush out of the diesel engine's radiator. Solution: Wait for the temperature to drop before opening the radiator cap. 2. Failure to use antifreeze: If this occurs during short trips, using tap water can lead to scale buildup in the radiator and pipes, obstructing coolant flow. This causes severe air trapping in the radiator when the water pump stops working, potentially damaging the engine over time. Solution: Clean the radiator to remove scale, repeatedly flush the pipes with clean water, check the seals of rubber hoses and connection clamps, then add antifreeze with cleaning properties.
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