Engine Size: 2.2
Refrigerant Type: r134a
Ambient Temp: 85
Pressure Low: -10
Pressure High: 80
Country of Origin: United States
having trouble figuring out whats wrong with ac on my daughters honda. she came to me yesterday and told me it sometimes blows cold sometimes doesnt so i start checking things and instantly realize the valve core on the low side port is leaking so figured that was good starting poiint ..so i changed the valve core..vacuumed the system for 45 minutes shut off the pump and let it sit for two hours ..no leaks ..so i added the 6oz of oil and about 16ozs of r134a the gauges were off the charts low side was around 90 and high was over 200 and blowing hot air so i just left it alone for the rest of the day ..now i just went out hooked up gauges without car running low side reads a bout 20 to 25 the second i start the car and turn on ac it reads -10 on vacuum ...why would it be pulling a vacuum?? any advice and info aprreciated in advance.
Why did you add 6 ounces of oil? One the system still has a leak and two it now has way too much oil in it. You may have even damaged the compressor with this much oil in the system. See what the others say but I would be starting from scratch at this point.
I show a 10PA17 compressor in that car.
With a double dose of oil in the system you get to recover & flush anyway, so once you have the system recovered...
Locate the expansion valve & remove it. There is probably a little screen in the valve inlet full of something.
Depending on what has clogged the system, you can decide from there how much of it to replace. At the minimum you will be replacing the dryer, and some O rings. If someone used a hardening leak sealer in the system at some point, you may be looking at a total system replacement.
Recover the system, remove the receiver / dryer & check the ports for sealer - it dries like cement. Then check the TXV for similar deposits.
"Among the many misdeeds of the British rule in India, history will look upon the act of depriving a whole nation of arms, as the blackest."
~ Mahatma Gandhi, Gandhi, An Autobiography, M. K. Gandhi, page 446.
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