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What Causes the Coolant Light to Illuminate?

1 Answers

BraxtonFitz

07/29/25 10:18am

The coolant light illuminates due to: 1. Insufficient coolant level; 2. Malfunctioning cooling fan; 3. Faulty water circulation pump. Solutions include: 1. Promptly replenishing with the same brand of coolant; 2. Replacing the fan impeller. The automobile coolant reservoir, also known as the radiator, serves as a crucial component in the vehicle's cooling system. Its primary function is heat dissipation - the coolant absorbs heat from the water jacket, releases it when flowing through the radiator, then returns to the water jacket in a continuous cycle to regulate temperature. As a vital part of water-cooled engines, the radiator plays a key role in the cooling circuit by absorbing cylinder block heat and preventing engine overheating. Given water's high specific heat capacity, the temperature rise after absorbing engine heat remains moderate, with the thermal energy being transferred through the liquid cooling circuit.

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