a leak is probably getting on something hot and cooking away
Engine hot - normal Engine cool excessive pressure bad thermostat
There are three main possible causes to explain why a car air conditioner is blowing hot air. These causes are a worn out compressor, refrigerant leak, and an electrical problem.
The only reason is a leak. Usually small. The place to start is: If it smells like oil or antifreeze ...
The obvious answer is that the problem wasn't solved. You'll have to get under your car and look for the leak.
Low on antifreeze/antifreeze leak...loosenut... www.ceriousproductions.com
you have a leak in a hose or your radiator itself. Look for antifreeze dripping from under car while engine is running and hot enough for the fan to kick on.
cold. If you open the radiator when the car is hot, it can spray all over the place.
There must be a leak somewhere; check the radiator and the hoses for signs of antifreeze leaking out. If the car has been running for a while, look for any signs of steam rising up from the engine area, this may be your leak. Careful not to get burned touching any hot parts.
The smell of antifreeze is very strong and distinct, it does not take much of a leak to smell it. The radiator could still be full and have a small leak. I would check for antifreeze dripping onto the exhaust or on the engine block because when it is hot the smell is much more noticeable from the fumes.
I don't think you can actually overfill a car with antifreeze. There is an overflow chamber that prevents this. Perhaps this overflow can be overfilled but in that case the worst thing that can happen is the little plastic cover pops off and you get some excess antifreeze on the ground. It might also depend on the car. when car gets hot it will push coolant to reservoir (expansion) and when cold, into radiator. this is the function of the rad. cap....if u overfill reservoir it will only leak out of fill cap to the grd
Coolant will expand as it heats - that's the purpose of the coolant recovery tank - to take excess when vehicle is hot and return it to the radiator when vehicle cools