femurphy77
Active member
I've been working on the AC in my '92 pretty much all weekend and am not satisfied with the results. I've replaced the orifice tube, vac'ed the system down to 30" for 6 hours and added about 26 ounces of 134. Everything seems to be working but in an outside air temp of 94 degrees, humidity around 60% my center outlet temp on max cooling settings is only 59 Degrees. I am by no means an AC mech but do pretty decent in most of my mechanical endeavors. Low Side pressure is 32# and hi pressure is around 300#. I have plenty more refrigerant but basing the amount on 80% of the r12 charge I should have enough. The car had 134 fittings on it when I got it so I don't know the history of the conversion. Everything seems to work but I'm just not getting sufficient cooling. AM I asking too much? TIA, FM, Indy.