I bought a 2066 H3 a couple months ago and I can smell antifreeze most all the time. Looked over everything and can't see any leaks but I still have the smell, especially when I stop at a light with the air on. Any Ideas?

 

I had the same issue but I've decided to blame it on the salt and other de-icing junk they put on the roads here.
Since we are sitting at almost May I doubt that's the issue for you though.
Have you gone through a good car wash that really sprays off the underneath - or done it yourself? Maybe you went through something and until it's washed off it won't go away???

 

Took it to the dealer. They replaced the radiator and a pinion seal.