I'm no expert on this stuff, but as a mechanic on new cars, I do have to check
a/c temps when a customer complains that it's not working. If it has a
problem, it goes to somebody else to be fixed, so aside from some theory and
my 2 cents, I know not a lot. Anyway, the thing I've found is that when
running R134 in brand new cars, the a/c typically blows 20-30 degrees below
ambient temps. The old R12 systems did better, but those are gone.
Devin
'57 3100 with 2-60 a/c
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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