I vacuumed down my ac on my truck, and then found a leak. On the highside fill valve. Replaced it. Tons of oil came out when I pulled a vacuum! Tons! charged the system, will not cool. Takes a long time to equilize pressure when turned off, my dad says orfice tube is clogged. I would imagine from all the 134a you get these days has leak sealer in it, he says? So, since I'm going to change the orfice tube he says go to a orange, it will blow colder. I have heard red, elsewhere. My dad thinks snow should come out of the ducts. What would you guys recommend for here in Texas where it gets hot. Specifically in the DFW area. Humid, and Hot! Sometimes Dry and Hot!. What else should I look into changing? Dryer? etc....? Since I will have it broken down. Should I Flush the system? With what? Thanks for any help or advice you can give me..

 

Oh, its a 95 F350 Flat bed dually. 7.3 PS if that is a need to know.

 

put factory orifice back in. whatever color ford used.

 

If it doesn't advertise stop leak, it most likely doesn't have any in it.
You didn't put oil back in after vacuuming?
Not a bad idea to replace the drier.
Depending how the orifice tube looks, you may need to flush out the whole system.

 

If the orifice tube is clogged you'll have a high head pressure