Can You Still Drive If the Coolant Boils Over?
3 Answers
If the coolant boils over, it is recommended to pull over and let the engine idle for a while to allow the temperature to gradually decrease. Check if the cooling system is functioning properly and inspect the coolant level. If the boiling is caused by insufficient coolant, replenish it promptly once the engine temperature has dropped. In case of emergency, if no coolant is available, a small amount of water can be added temporarily, and then proceed to the nearest repair shop for maintenance or replacement. Relevant information about coolant is as follows: 1. Introduction: The full name of coolant should be antifreeze coolant, meaning a cooling liquid with antifreeze properties. Coolant prevents the freezing of the liquid during cold winter stops, which could otherwise cause the radiator to crack or damage the engine cylinder block or cylinder head. 2. Function: It provides anti-corrosion protection for components of the cooling system; prevents scale buildup, avoiding reduced radiator efficiency; ensures the engine operates within the normal temperature range.
I've been driving for nearly twenty years and have seen too many cases of engine failure. If the coolant boils over, you must stop driving immediately! Why? It indicates severe engine overheating, a rapid temperature spike, and a breakdown of the water cooling system. Continuing to drive will burn out the engine, seize the pistons, and warp the cylinder block—repairs could cost thousands or even tens of thousands. Once, I pushed through while rushing, only for the engine to start smoking halfway, nearly causing a fire. The repairs were expensive and delayed my work. The correct approach is to pull over immediately, turn off the engine, and let it cool for half an hour—don’t touch the radiator cap to avoid scalding from hot water spray. Also, check if the fan is running, whether the coolant level is sufficient, or if there are any leaks. Regular maintenance, like changing the coolant and cleaning the radiator, helps prevent such issues. Remember, safety is more important than anything—don’t take it lightly.
When the antifreeze boils, it's truly terrifying, and you absolutely must not continue driving. Once during a road trip, this happened to me. I stubbornly pushed on for ten minutes before the engine alarm went off and white smoke started pouring out. The mechanic said the connecting rods were bent, costing me over ten thousand yuan in unnecessary repairs. The usual causes are cooling system failures, such as a broken fan preventing heat dissipation, clogged or leaking hoses, or antifreeze that's old and full of impurities. After stopping, immediately turn on your hazard lights to warn others, but don't rush to open the hood—it's extremely hot and dangerous. Call for roadside assistance right away. I recommend checking the antifreeze's color and level every six months, and adding a new additive to maintain good flow. Safety comes first—don't let a small issue turn into a major problem that affects your family's trip.
