What Causes Poor Car Cooling?

1 Answers
MacJake
07/30/25 8:55am
Car cooling issues and their solutions are as follows: Engine Cooling Problems: Poor engine cooling can lead to excessively high water temperatures in the radiator. Over time, scale buildup inside the radiator becomes thicker, impairing heat dissipation. When overheated water cannot release heat effectively, it may result in "boiling over." Additionally, clogged ventilation holes in the radiator are another common cause of poor cooling. Solution: Removing scale from the radiator can effectively improve cooling performance. Insufficient Radiator Coolant: Coolant serves as the heat carrier in the cooling circulation system, transferring engine heat away through the cycle. When coolant levels are low, its heat-removal capacity decreases, preventing the engine temperature from dropping naturally. Coolant loss is typically due to leaks or evaporation. Causes of coolant leakage include damaged water pump seals, cracked pipes, loose connections, or radiator damage. Solution: If coolant levels are too low, top up with an appropriate concentration of antifreeze via the overflow tank. Thermostat Failure Preventing Full Circulation: A faulty thermostat can disrupt cooling. Located at the engine's water outlet, the thermostat regulates cooling intensity by opening the full circulation path once the engine reaches a specified temperature. If the thermostat fails to activate this path, coolant circulation is impaired, leading to engine overheating. Solution: The thermostat is installed in the circulation pipeline between the radiator and the engine. If damaged, simply replace it.
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