What are the reasons for frequent loss of coolant?
2 Answers
The reasons for frequent loss of coolant include water vapor pushing the coolant out, malfunctioning water pump or thermostat, poor cylinder head gasket sealing, natural consumption, and coolant entering the cylinder to participate in combustion. Water vapor pushing the coolant out: It may be that the water vapor inside the water channel pushes the coolant out of the reservoir when the water temperature rises. In this case, it is necessary to regularly check the radiator and replenish it in time. Malfunctioning water pump or thermostat: A malfunctioning water pump or thermostat can cause the water temperature in the circulation system to rise, leading to excessive pressure inside the radiator and cooling system, which results in coolant flowing out of the reservoir. Repair the water pump or thermostat to restore normal function. Poor cylinder head gasket sealing: Poor sealing of the cylinder head gasket leads to coolant leakage. At this time, it is necessary to ensure the sealing of the cylinder head gasket. Coolant entering the cylinder to participate in combustion: Coolant enters the cylinder to participate in combustion, such as cracks in the cylinder block, burning or corrosion deformation of the cylinder head gasket, etc. In this case, pull out the oil dipstick or open the oil cap to see if the oil shows emulsification. Natural consumption: Various fluids in the car are subject to consumption. Coolant, which is responsible for cooling the car engine, is often at high temperatures and will evaporate partially.
My buddy's car always seems to be low on coolant, and after checking, we found there might be a few common reasons: first, there could be a leak in the system, like tiny cracks in the radiator or loose hose connections, causing slow seepage; second, improper coolant concentration leads to faster water evaporation, especially during hot summer days; third, more serious issues like a blown head gasket could allow coolant to enter the engine and get consumed. This problem shouldn't be ignored, or the engine might overheat and cause expensive repairs like a blown engine. It's recommended to first check for colored liquid stains on the ground after parking—if found, locate and fix the leak immediately. If no leaks are found, ensure you're using a reputable brand of coolant mixed with water in the right ratio, roughly half and half, as pure coolant evaporates faster. Those who frequently drive long distances should pay extra attention to coolant levels, checking the overflow tank under the hood every two weeks to ensure it doesn't drop below the minimum line. Maintenance is all about prevention and timely action.
