How Serious Is the Issue of Antifreeze Entering the Transmission?
2 Answers
Antifreeze entering the transmission is a serious issue. It is best to overhaul the transmission. The main functions of antifreeze: 1. Cooling effect: Cooling is the basic function of antifreeze. When the engine is running, it generates a large amount of heat, with about 60% of the heat being dissipated to the surrounding space through the cooling system; 2. Heat dissipation effect: Antifreeze provides efficient heat dissipation, carrying away excess heat energy from the engine to control the temperature of key metal components; 3. Antifreeze effect: In winter, when temperatures are low, antifreeze is added to the engine coolant to lower the freezing point of water, ensuring the cooling system does not freeze in cold weather; 4. Anti-corrosion effect: Components in the cooling system, such as the radiator, water pump, cylinder block, cylinder head, and water distribution pipe, are made of metals like steel, cast iron, brass, copper, and aluminum. Due to the different electrode potentials of these metals, electrochemical corrosion can easily occur in the presence of an electrolyte. Additionally, acidic byproducts formed from the decomposition of glycol-based substances in the coolant, as well as acidic exhaust gases from fuel combustion, can infiltrate the cooling system, accelerating corrosion.
In my years of experience, coolant entering the transmission is an extremely serious issue—don't even think about ignoring it. Coolant is designed to cool the engine, and once it leaks into the transmission, it's like mixing water with oil. The transmission fluid loses its effectiveness instantly, failing to lubricate the gears and even corroding metal components. Over time, the transmission will start slipping, overheating, and may even fail completely. I've seen cases where owners neglected this issue and ended up paying tens of thousands to replace the entire transmission. If you notice symptoms like rough shifting or unusual noises, take your car to a professional shop immediately for a thorough flush and fluid replacement. During routine maintenance, regularly inspect the radiator and hoses to prevent leaks—this can save you a lot of trouble. Driving safety is no joke; don't gamble with your own or your family's safety.
