Help with 2006 liberty ac

My brothers air had not been working for some time. I decided to fix
it for him. Installed new compresser, all new o rings and flushed the
evaporator all lines and the condenser. Charge sticker said 1.12 oz.
Using my home scale I got 1.2. Replaced dryer. However did not replace
orfice tube as it is in the line and there is no way to replace it
without replacing the whole line and no one had it in stock llocally
and my brother needed to be abel to drive it to work.
I put 8 oz of oil in the system.
It now cools marginally. Using my harbor freight guages I am reading
70-75 on the low side and 300-350 on the high at 1500 rpm. Would could
the problem be?
I appreciate it!
Reply to
stryped
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Boy, what a mess! Hard to tell what is wrong. I'm assuming this is an R134a system? The somewhat high pressure on the evaporator could indicate contamination. Did you evacuate the system?
How did you "flush" the system? Is it possible some of this stuff is still in there? Assuming the compressor is good, that would indicate adequate quantities of refrigerant are boiling in the evaporator, so it should be cooling. What is the temperature of the air coming out of the vents? The question is, is enough air flowing over the evaporator core, or are the mixing doors not working right?
Umm, 1.12 Oz of refrigerant sounds way low, are you sure you read the sticker right? I usually have to put in a whole 12 Oz can at least in most systems.
Jon
Reply to
Jon Elson
50 degrees is wonderful. Yes, the suction line should be cold, back to the compressor. So, the filter dryer doesn't sweat. Bummer. Might be low humidity today.
Christopher A. Young Learn more about Jesus
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Temp from vents is around 50 degrees as coldest going down the road and measuring with a temp gun.
Holding both inlet and outlet of the evaporator core, both lines are cold. Is this normal?
Hardly any sweating from the dryer which does not seem right.
Reply to
Stormin Mormon
Vent temps of 50 degrees is not what I call "marginally".
Please recheck the charge weight sticker. Older cars like my Mom's Oldsmobile had 2.25 pound charge weight, which could be 1.12 kilograms.
Christopher A. Young Learn more about Jesus
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My brothers air had not been working for some time. I decided to fix it for him. Installed new compresser, all new o rings and flushed the evaporator all lines and the condenser. Charge sticker said 1.12 oz. Using my home scale I got 1.2. Replaced dryer. However did not replace orfice tube as it is in the line and there is no way to replace it without replacing the whole line and no one had it in stock llocally and my brother needed to be abel to drive it to work.
I put 8 oz of oil in the system.
It now cools marginally. Using my harbor freight guages I am reading 70-75 on the low side and 300-350 on the high at 1500 rpm. Would could the problem be?
I appreciate it!
Reply to
Stormin Mormon
May be a dumb question, but did you evacuate the system before recharging?
Reply to
Steve Walker

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