With a broken coolant tee on your heat dispersal system, the level of coolant will constantly being depleted. This will lead to the engine overheating until this situation is properly addressed. For the coolant tees that are made out of metal alloy, they can rust over time if the coolant is old or just water is used in the coolant system. There are also polymer tees that can be broken of an object come in contact with them and lateral force is applied. This will cause them to snap and the coolant to rush out even if the vehicle is not running at the time.
The material a coolant tee is made from can be a metal alloy, polymer or carbon fiber. While the metal alloy is the strongest, it is also the one prone to rusting. They are used so multiple hoses can be hooked up to the same fitting so the flow of coolant can travel to multiple destination in a vehicle. The hoses are sealed on the coolant tee with a hose clamp that has to be fitted correctly with the appropriate tension on it so no coolant will leak form this connection. This makes it possible for the engine to remain cool when it is being operated.
To replace a leaking coolant tee, the coolant system should be cooled first. This is best accomplished by letting the vehicle sit for at least 15 minutes after the engine is turned off. Then the junction component can be removed by loosing up the hoses then the base of the coolant tee on the engine block if it is located there. The ends of the hoses should be inspected for cracks before the new tee is put into place. This will prevent a leak from developing.