I need some help here, please.
When I get out of my truck I can have a sweet smell, like antifreeze. I have looked all over, no leaks. Does anyone have a guess?

 

Feel the passenger side carpet close to the firewall.


Is your cooling system losing fluid?

 

Nope, nothing.

 

Is the smell coming out of the exhaust?

 

what year truck?

If it's an older one (70's) I believe the radiator overflow didn't go into a bottle it just dumped on the ground (at least that's the way it was on my mavericks). This could account for it.

Also I'd check or replace the radiator cap. If it's not pressurizing properly it cal allow the system to vaporize (boil) just enough to smell but not enough to cause issues.