Could be thermostat not opening causing a back pressure
Bad head gasket? Bad thermostat? Defective radiator cap?
The overflow tank is either cracked or its overheating and leaking from the cap
You may have a bad radiator cap.
What other symptoms besides leaking antifreeze? Where do you see the anti-freeze leaking?
It could be the coolant overflow tank that is leaking.
If your radiator isnt leaking and car is having a over heating problem and coolant spewing out. Chances are your thermostat needs replaced. possible the radiator needs to be flushed. But more likley its thermostat
Blown head gastet, radiator leaking, thermostat needs to be replaced Blown head gastet, radiator leaking, thermostat needs to be replaced
If your talking about coolant leaking on the passenger floor then it means your heater core is leaking and needs to be replaced.
only if the gasket under thermostat is leaking and may-be it's the hose clamp on the hose that is leaking
An overflow pipe on a (toilet cistern?) will leak if the rubber disc in the ballcock slide valve needs to be replaced.
I would check the hoses leading into your radiator, and also the overflow for antifreeze. If that is not the problem, it could be your heater core. Your heater core might be leaking, you might have a hose leaking
A hot temp reading and coolant coming out of the overflow bottle is a sign overheating. The most common problems would be either a stuck thermostat or a bad water pump.