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
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.
Yes, if it is not holding pressure or is allowing a coolant leak.
Radiator cap
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.
Check valve in radiator cap malfunction, replace radiator cap.
Steam? Leak? overheating due to low coolant? Back pressure due to a bad thermostat? Defective radiator cap? have system pressure tested to determine location of leak
radiator cap
It may appear to be coming from the radiator. A leak is a leak, and it can cause serious prolems inside your engine. It could be a house, a gasket, the water pump, or you may have missed a radiator leak. Over heating can cause this too, and that presents other problems. Lastly, your radiator cap may be failing. That's a cheap first step. Don't let this go for long, keep fluid in your system at all times.
Replace the cap with a new one. Any auto parts store will have that.
there is a tool for the radiator to check for leaks.unscrew rad. cap and put tool cap on rad. and pump air into rad. and it will push fluid out the hole.there is your leak
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