Hello Friends,

I have recently flushed the coolant system in my 2001 f150 with a 4.6, when I flushed the system I drained the radiator and block and took out the thermostat, I filled the system with water and drained again twice, while the water was in the system i ran the truck for about 5 minutes and I ran the A/C and heat to flush that out to. I replaced with fresh antifreeze and thermostat, and all seemed fine, but 2 days ago I started to notice a strong antifreeze smell from the A/C, and when i drove at night you could see a smoke in the cab when the smell was really strong. I dont know much about the A/C system so what do you guys think is going on? Any info or tips would be much appreciated.

Thanks In Advance,
William Hayden