Because there's a hole somewhere under the hood that's letting it out, and it's usually in a heater hose. If you can't find it any other way, there's a blacklight detection dye you can put in the antifreeze. You put it in the radiator, then shine a blacklight (the ones they have at hardware stores are fine for this) on your engine. The leaking antifreeze will glow under blacklight.
antifreeze smell inside car means that there is antifreeze leak somewhere. first check for wet spots under car when parked after running.if anti freeze is leaking from engine it will pool on the ground next check to see if heater core is leaking. that is usually the problem. if heater core is leaking, replace it
out of the over flow
you got an antifreeze leak
Antifreeze.
You have a leaking heater core. You might smell antifreeze if you turn on the defroster.
It is not normal for antifreeze to be leaking out of a car. Period. At all, no matter what car or where it's leaking from. Try buying a new cap. If that doesn't help, call a mechanic.
If it is leaking inside the car, the heater core has failed.If it is leaking inside the car, the heater core has failed.
If you smell antifreeze in the passenger compartment of your car your heater core is probably leaking. It's under the dash somewhere ( depends on the make and model ). Another symptom of a leaking heater core is moisture build up on the inside of the windshield when you run your defroster.
It's the only green fluid in a car.
First where is it leaking or do you know? just to the right and under the fill "tank".
freeze plug has blown out or leaking
Most likely a leak in the heater core, should be on the passenger side under the dash.