What does it mean when you smell coolant when heater is on?

What does it mean when you smell coolant when heater is on?

If your car smells like antifreeze, it could mean that the vehicle’s heater core is leaking. The heater core is responsible for circulating warm air in the car’s passenger cabin. When the heater core develops a leak, it begins circulating air with an antifreeze odor and eventually fails altogether.

Is it normal to smell coolant?

If you’ve noticed an odd, sweet smell coming from your car after you shut the engine off you might have an antifreeze leak. Your engine’s radiator is actually filled with what’s called coolant, a 50-50 mix of antifreeze and water.

Why does my car heater smell like antifreeze?

The heater core of your vehicle contains an antifreeze and water mixture, and it uses this mixture to regulate the temperature of the air inside your car. If the heater core of your vehicle is leaking antifreeze, that can cause a fairly intense smell inside your car. Replacing a broken pipe or hose is often quite…

Is it bad to smell a leak in a heater?

It’s going to be a small leak in the heater core. I doubt you’d be able to smell anything if it was the radiator. As long as you keep proper radiator levels there shouldn’t be any harm. The problem is it is leaking and it may get worse. You need to get this fixed. There are some stop-leak products that actually work very well.

How can I tell if my heater core is leaking?

If your coolant level drops, and if you have any oily residue on the inside of the windows, then it is fairly evident that you have a leaking heater core. There is also a possibility that there is a small leak or seepage under the hood, and that the smell is being pulled into the cab when you run the HVAC system.

Can a heater blower leak into a car?

If so, the leak is probably not the heater core and the smell is being pulled into the car by the heater blower. Either way, I’d want to have the leak found and fixed. These fumes aren’t good for you. If you have pets and they find any antifreeze puddles, it will likely be fatal for them.

https://www.youtube.com/watch?v=-gZ_e2tPTVs