2006 jeep liberty help

gotta ask - after you flushed, did you evacuate? how long for?

I vacuumed for one hour. Stopped to see if it held and it did for half an hour then I charged.

ok, should be good. the rest is outside my knowledge band.

Those pressures are way too high. A typical low side pressure at 90 F. ambient would be about 35 PSI which gives a evap. coil satutaration temp. of about 40. Your 75 PSI gives you a evap. coil temp. of about 72 which won't cool the air. You either have the system overcharged, have air in the system, the condenser fan isn't running, or?????

What also doesn't make sense is that the factory charge can't be only 1.12 "ounces". You need to read the tag again. Is it really 1.12 "pounds"? or more? If you had really only put 1.12 ounces in you would be showing really low pressures and no cooling whatsoever. I don't have a Chrysler shop manual for a 2006 Jeep Liberty to give the specs on the AC system. I suggest you go over to

and see if they can help.

Sorry it should be pounds not ounces. Fan works. It actually cooled better the next day.

I am wondering if it is the harbor freight guages I am using?

Is that 8 oz of oil in addition to more oil that was in the compressor?

Go here

for a good overview of what different pressures mean. There are at least two things that can cause your readings.