heater core leak
You have a coolant leak.
your vehicle may smell like antifreeze while driving because it is overheating
if you can smell antifreeze you need to replace the heater core in the vehicle
A small amount of antifreeze smell may be emitted from the radiator overflow. However if you smell antifreeze you need to make sure there isn't a leak. It may be something simple if you catch it early.
Maple syrup.
An antifreeze leak.An antifreeze leak.
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.
You have a leaking heater core. You might smell antifreeze if you turn on the defroster.
Antifreeze will be leaking in the floorboard on the passenger side, there will be a smell of antifreeze through the vents.
no
The "antifreeze smell out the AC vents" would mean only one thing, you have a small leak in the heater core.
If you smell antifreeze, there must be a leak somewhere. Have the cooling system pressure tested.