Thread: Slight coolant smell when heater is on

When my heat is on a notice a very slight smell of antifreeze. My heater works well and my car's temp is normal. Could this be a failing LIM? Also I have excessive smoke when driving, it is cold outside, but seems to be a bit worse then just condensation. Any idea's?

Heater core could be leaking

Thought of that as well, I'll have to check it out.

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Have you noticed coolant loss at all? Does the smoke from the exhaust have a coolant smell?

There hasn't been any coolant loss cause it's been full since I added some a week or two ago. I'll have to check my exhaust smell.