Here in Indiana, your vehicle’s air conditioning is an important feature in the summer. As the temperatures begin to warm up, you should test your climate control system to make sure it’s working properly. You can make vehicle maintenance part of your spring cleaning routine. After not being in use for months, your air conditioning may emit some unfamiliar smells.


If you notice the scent of mildew coming out of your vents, you may need to check the air intake vent underneath the hood. There could be dirt, dust, and other debris trapped in the vent. This can potentially lead to mold and mildew growing in the dirty, wet vent.

Sweet smell

While a sweet smell might not seem bad, if you notice a smell similar to maple syrup, this could mean your heater core is leaking. The sweet smell comes from the coolant.


The pungent smell of chemicals coming through your vents usually means the refrigerant is leaking. You may also notice little to no air flow.

Stale air

It can be hard to tidy up and organize your car when the air coming through the vents smells like an old gym bag. If you notice this, you may need to change your cabin air filter.

If you notice any peculiar odors coming from your air conditioning, we can help you take care of it here at Hirlinger Chevrolet.

Air Conditioner in Harrison, IN