The cap is designed to release pressure in excess of designated amount ( probably 15 lbs), but it should release it into the coolant reservoir. Sounds like you need a new cap.
A radiator cap would not cause a leak! However, if the radiator cap is holding pressure, other weak parts could signal issues in need of attention.
If you have a "Leak" from the cap either the cap needs to be replaced or the top of the Radiator is damaged. It is normal for thermal expansion (water gets bigger when hot) to cause the coolant to go into the expansion tank when cars is hot and to be drawn back into the radiator as the engine cools
For radiator leaks look for the following signs: The car will overheat Coolant level will frequently drop Pool of coolant or water under the car radiator Obvious leak noted from radiator on starting the car Faulty radiator cap causing the leak
On most cars if they don't have a radiator cap, then you can put it in the cooling system by pouring it in through the upper radiator hose. Even if you are suppose to do this while engine is hot DO NOT because it will have the same affect as pulling the radiator cap while hot.
Open the radiator drain and let drain into a catch basin. Run water through the radiator by filling through the radiator cap with a hose till the water coming out is clear. Fill through the overflow bottle if there is not a radiator cap present.
Please advise where the radiator cap is located on a 1994 ford thunderbird. I have to add a stop leak product to stop antifreeze leak and I cannot locate the cap.
Cooling system leak or engine overheating and steam escaping from the radiator cap.Cooling system leak or engine overheating and steam escaping from the radiator cap.
First, you have to FIND the leak. It can be a hose, the water pump, the radiator, head gasket, radiator cap... let me know what you find, and if you can't figure out what to do, we'll talk.
the seepage from the radiator. A rotted/damaged radiator core, A split seam between the radiator core and the tank, A cracked tank, A loose hose clamp, A bad radiator cap.
This could be caused by a leak in the cooling system, a malfunctioning radiator cap, a blocked radiator, or a failing water pump. It's important to have the system diagnosed and repaired by a mechanic to prevent overheating and engine damage.
A radiator can lose water due to a leak in the radiator itself, a leak in a hose connected to the radiator, or a faulty radiator cap that doesn't maintain proper pressure. Regular maintenance checks can help identify and address any issues to prevent water loss.
Replace the cap with a new one. Any auto parts store will have that.