Don't know if it's bad or not help....

[police251]

So the weather is getting super nice in NM and I have had to run the A/C on my 2005 power stroke 6.0 however I have noticed a slight smell of antifreeze when this is on. I smell it in side the truck. The truck runs fine but this worries me a little bit is this normal.

[police251]

Can get a bump at lest lol

[L&B]

Coolant smell is never good news. Could be a leaking heater core. Could be egr cooler starting to bubble into the coolant; could be a few other things. I would suggest putting a T in the upper line to the degas bottle and check pressure while driving. If it gets high enough to lift the cap (ca. 16 psi) it's combustion gas getting into the coolant. If it stays low, like 7-10 psi or less, more likely to be the heater core.

[police251]

Thanks sir your the only one that left me some info to start.