Why is the car antifreeze boiling and overflowing?
3 Answers
Here are the reasons why car antifreeze boils and overflows: 1. Reason one: The radiator is damaged. The automatic transmission oil is cooled through the radiator. If the cooling tube inside is broken, the oil will flow into the radiator. 2. Reason two: It may be due to the connection between the oil seat and the water channel. The oil filter seat of this car has a water channel for cooling. If it is corroded and the oil channel is under high pressure, the oil will enter the water channel. The possibility of a blown head gasket is low. 3. Reason three: Generally, it is recommended to prepare the coolant at a temperature about 5°C lower than the local minimum temperature. The effective service life of antifreeze is mostly two years. It should be replaced when it expires or if the coolant is found to be dirty. When replacing, be sure to completely remove the old coolant, add clean water, start the engine, and let it idle for about ten minutes to circulate and clean. After stopping the engine, drain the clean water.
I've encountered the issue of car antifreeze boiling and spilling out several times before. It's usually due to a malfunction in the cooling system, such as low coolant levels or a clogged radiator, causing temperatures to skyrocket. If the fan stops working and heat can't dissipate, the antifreeze is prone to boiling over. A stuck thermostat is another common culprit – it's supposed to open the cooling circuit when temperatures rise, but when jammed, it fails to function. A failed water pump can also lead to boiling as the coolant stops circulating, trapping heat inside. Another possibility is a faulty radiator cap causing insufficient pressure and subsequent spraying. If you notice bubbling while driving, immediately pull over and turn off the engine. Don't rush to open the cap for inspection as hot steam could cause severe burns. Wait for the engine to cool down, then check the coolant level and fan operation before deciding to visit a professional mechanic. Never underestimate this problem – ignoring it could lead to engine damage and costly repairs. I've seen too many people neglect this issue only to ruin their vehicles. Regular antifreeze and system checks can save you a lot of trouble.
Antifreeze boiling and spraying out is quite alarming. The main causes include insufficient system pressure, fluid leakage, or faulty components like the thermostat. When the temperature gets too high, it tends to gush out like this. It's advised to stop the car and turn off the engine immediately—don't force it to keep running. Safety first, to avoid scalding. After half an hour when the car has cooled down, check the coolant level and whether the fan is working while wearing gloves. If the coolant level is low, try topping it up with antifreeze, but avoid using tap water as it can cause rust. If the fan isn't spinning, the wiring might be damaged. I've helped a friend deal with a similar situation before, and usually, taking it to an auto repair shop is the solution. They can diagnose the issue quickly and fix it in no time. Remember to maintain your car regularly—for instance, replacing the antifreeze and flushing the system every two years—to prevent boiling risks. This saves on repair costs and hassle while ensuring driving safety.
