Anti Freeze smell after sitting overnight.
 

Yesterday morning and this morning when I got in my car, after it had sat for 12 hours, I notice a smell of Anti Freeze when I climbed inside the car. However after the car has sat during the day, there was no smell.

I have not seen any puddles, and I really have not looked. The engine does not overheat. Once the car is going I do not notice the smell. I check the carpet and as far as I can tell, it's dry.

Is this something I should be worried about?

-JJ

Anti-freeze to me has a musty odor. Have the carpets ever been wet? Is there anything in the car wet?

Nope, nothing wet. The smell is a sweet Anti Freeze smell.

-JJ

Could be a loose hose connection, and recently someone had a cracked thermostat housing replaced, thought it was trans. oil...
Might have to take it in for inspection, the thermo housing was back by the firewall I believe.

Well if there is nothing you can see leaking, and your coolant level is not below normal (did you check that?) then coolant can't be escaping. Did you pull the cabin air filter and smell that? Maybe it is wet or there is something in it giving that smell.

Maybe a pinhole leak. An engine's coolant pressure is the highest AFTER it is shut off. It doesn't take much antifreeze to get the smell. Kinda like the smell they put in natural gas (except it is a sweet smell). It don't take much to notice you have a leak. If its only inside the car, I would look at the heater core connections. If its musty, could be a rainwater leak or plugged evap. drain.

Smell is not noticed while driving, only after it has sat overnight at work.

No puddles. Will check coolant level this evening before I go to work.

-jj

Check the cabin air filter while your at it and see if it is wet or anything.

Where are the fill marks on the over flow bottle?

-JJ

Checked filter and it is dry.

-JJ