how much r134 freon does a 1978 kenworth take, with a sleeper unit and a york compressor
Already Tried: new parts and 4 lbs of freon, just not cooling as good as it should, 55 to 60 degs
fill it untill your low side is around 25-30 psi and 250 on the high side..i think you over charged it by a pound or so\
Experience: Experienced Diesel Technician