Radiator Cap Coolant Leak

You have a coolant leak.

Radiator cap coolant leak.

The radiator cap can deteriorate over time letting antifreeze slip through when you are driving. What is the reason behind coolant leaking from the car s bottom. Your radiator cap is a small part that plays a big role in keeping your engine from overheating there are several warning signs that your radiator cap is not working right. Leaked coolant stays in between the radiator upper tank and the radiator upper body.

Check the radiator when the coolant disappears without any trace. Evaporation of coolant is undesirable because gaseous coolant will either leave the system entirely through a leak or will take up more space than it should which causes overpressurization. While you re in there check to make sure your coolant overflow tank is working properly. If your coolant is leaking it could mean your radiator cap is bad if the cap isn t releasing excess pressure properly that pressure can force the coolant to leak out at the point of least.

The radiator cap releases the extra pressure by sending some coolant into the overflow tank. The faulty reservoir cap. Symptoms to look for that indicate low coolant in the car. It may also allow coolant to leak externally.

If you have a bad radiator cap the coolant could get released too quickly and cause the reservoir to overflow. Install a new radiator cap. To avoid overpressurizing which can damage components of the system a spring loaded valve on the radiator cap vents excess coolant into the expansion tank. If the radiator cap is stuck the proper amount of coolant cannot be released appropriately and this causes coolant temperature and coolant pressure increasing.

A worn weak or leaking radiator cap will not hold pressure lowering the boiling point and allowing coolant to boil out. The radiator is a pressurized system so if there is a loss of pressure from the cap not fitting properly or if the cap is the incorrect cap for the radiator the pressure will be lost and a leak could occur. Replace the worn out radiator cap. This drives to consequent leaking of the coolant through the radiator pressure cap.

Just wait for the engine to cool refill the cooling system and install a new radiator cap. If you have a leaky or a weak radiator cap you may experience loss of coolant from the overflow tube every time the coolant heats up. While this may seem to be a minor issue it can lead to dire consequences. There may be times that the reservoir radiator cap may turn out to be faulty.

Luckily this is a quick and cheap fix.