What Causes a Car to Lack Coolant?
2 Answers
The reasons for a car lacking coolant are: 1. Continuous high temperatures causing the coolant to evaporate; 2. Damage to the radiator head gasket or loosening of the overflow tank, water pump interface, and various pipe connections in the cooling system, leading to coolant leakage. The method for replacing coolant is: 1. Open the vehicle's engine hood and locate the coolant reservoir; 2. Open the coolant drain plug under the radiator to drain the old coolant; 3. Add new coolant and tighten the cap. The functions of coolant are: 1. During winter when temperatures are low, it prevents the cooling liquid from freezing and cracking the radiator or damaging the engine cylinder block or head; 2. During summer when temperatures are high, it effectively prevents boiling, avoiding overheating.
After driving for so many years, I've found that the most common reason for a car to lack antifreeze is a leak in the cooling system, such as loose or cracked connections at the radiator, aging and leaking hoses, or a faulty water pump seal. Another possibility is not paying attention to regular checks and failing to top it up when the level is low, especially during the high temperatures of summer when it's prone to evaporation. If the leak is too large, the engine temperature can skyrocket, which is troublesome as the engine may seize or even burn out. It's advisable to glance at the antifreeze reservoir every time you refuel and top it up with the original product if the level is low; if there's a leak, don't delay—get it checked by a professional shop promptly to avoid costly engine repairs.
