a leak is probably getting on something hot and cooking away
your vehicle may smell like antifreeze while driving because it is overheating
If you can smell it, it is leaking. Have it pressure tested by a professional.
probly your head gasket...
If it is a vortec engine, it is probably the lower intake manifold gasket. In most cases you can smell it when the engine is hot.
Check for a line leak to your heater core or a leak in the heater core it self. Usually it is under the dash on passinger side.
You normally smell the antifreeze so open the hood and look for a leak before you see it big time running out from under your car.
Bad head gasket or... Crack in exhaust port in head. Check exhaust for presence of antifreeze smell or exhaust gas in radiator.
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.
It could be that your heater core is blocked or damaged somehow.
Could be head gasket!
Maple syrup.