Okay fellas, my dad is having A/C issues on his '94 7.3 powerstroke. The a/c blows, the air just isn't cool. I checked the free-on with the guage and it seemed low, so i put some in and still nothing. i noticed that every time the a/c compressor would kick on, the guage would drop rise accordingly. It also looks like there is a leak on the low pressure port around some fittings right after. Can yall tell me what I part I am looking at? Any idea what i need to replace, and how much it would cost, and difficulty?
Any info would be helpful, i cant have my old man driving around without any cold air!