It should've. However, that has probably all worn off by now since you've been adding refrigerant.
I think you should go all the way. For one, the car is 12 years old, so the compressor is 12 years old. You have probably been losing oil, so you're lucky it's working at all. The orifice tube is definitely clogged up at this point, and that's probably exacerbating whatever leak you have. You can take a chance on the compressor- I know it's expensive- but I'd replace all the O-rings and the orifice tube before having it vacuumed and recharged. I might even consider replacing the accumulator- except that I remember that early Focis have an accumulator that is different and very expensive because you need a new hose as well. You might want to look into the parts and see what you need. What you really need to check, and be wary of damage on is the condenser. A small condenser leak is a big problem because the condenser is such an expensive and difficult part to replace. It's also one of the most likely places for a small leak because it's susceptible to road debris damage.
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Originally Posted by the user formerly known as ZX3_Chick
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