I was driving last night and turned the heat on for the first time this year. As soon as I turned the heat on it starting smelling just like anti-freeze in the cabin. I have had some issues with my cooling system in the past but I've been unable to figure out what is causing them. I get a few drips on the garage floor every few days and my reservoir seems to always be low. I check my oil regularly and the coolant is defiantly not making it into the oil. Any ideas what could be causing my problem?

 

My guess is that it is your your heater core and the drips you see are coming from the HVAC drain, where the heater core is losing the coolant. Most likely dripping while you are driving. Look to see signs of where it is dripping from and post what you find.

 

99 SLT, 5.2
Ditto[] on: heater core.