RustyRuu Posted May 27, 2018 Share Posted May 27, 2018 So I was about to see if my A/C compressor will work, I've never even had a belt on it since i've owned the car. the the pulley for it came in the trunk with a cracked adjustment piece from someone trying to adjust it without loosening the lock nut. well flash forward five years to today and my windows don't work so well anymore. need this A/C. its all put together, but when i was looking up the process first in my manual to recharge it, it says this : "the charging process requires the Compressor to be running. Your compressor may cycle off if the pressure is low due to a low charge. if the clutch cycles off, you can pull the Low-Pressure Cycling Switch Plug and attach a jumper wire. this will keep the compressor ON" No Youtuber has yet to mention this... everything i've read/ watched is people dumping the can into the low side refrigerant port and the compressor just kicking on. how do you accomplish this hack mentioned in my legacy bible, my idea now is, its just that little harness on top of the compressor and you run a wire to one of the battery terminals but i have no idea. where or what is the "Low-Pressure Cycling Switch Plug" and how do you jump it? or should i just go for it and charge it? going to buy refrigerant now Link to comment Share on other sites More sharing options...
RustyRuu Posted May 28, 2018 Author Share Posted May 28, 2018 ok got it. Its on the passenger side wheel well. on the air conditioning receiver-drier. there is a plug on top and it is that one. just bridge a wire to the plug and not the drier. this is a great way to check the clutch on your compressor too turns right on. found a leak on the top hardline going to the compressor, sooooooooo still no A/C yet. Link to comment Share on other sites More sharing options...
08SpecB_DE Posted May 28, 2018 Share Posted May 28, 2018 When opening the system you should always replace the drier. You will need to pull a vacuum on the system after cracking it open and injecting some oil may also be necessary. Link to comment Share on other sites More sharing options...
Brighton96 Posted May 28, 2018 Share Posted May 28, 2018 +1 on replace the dryer, it's cheap so best to not have mildewy smelling A/C. The compressor probably already has oil in it, but I'd still add an oz or so of fresh pag46 just to to be safe. I'd also replace all of the orings. You can get a multi pack of A/C orings at any auto parts store, just apply a little oil and install them all. Then add refrigerant and once it gets up to pressure, the compressor should kick on. Link to comment Share on other sites More sharing options...
08SpecB_DE Posted May 29, 2018 Share Posted May 29, 2018 He will still need to pull a vacuum to remove any moisture that may enter the system. Link to comment Share on other sites More sharing options...
YeuEmMaiMai Posted May 30, 2018 Share Posted May 30, 2018 When opening the system you should always replace the drier. You will need to pull a vacuum on the system after cracking it open and injecting some oil may also be necessary. +1 on replace the dryer, it's cheap so best to not have mildewy smelling A/C. The compressor probably already has oil in it, but I'd still add an oz or so of fresh pag46 just to to be safe. I'd also replace all of the orings. You can get a multi pack of A/C orings at any auto parts store, just apply a little oil and install them all. Then add refrigerant and once it gets up to pressure, the compressor should kick on. He will still need to pull a vacuum to remove any moisture that may enter the system. exactly what these guys said Link to comment Share on other sites More sharing options...
RustyRuu Posted June 3, 2018 Author Share Posted June 3, 2018 When opening the system you should always replace the drier. You will need to pull a vacuum on the system after cracking it open and injecting some oil may also be necessary. I'm guessing that any moisture that would be in the system is in the drier so its best to just get it out of there? or would just replacing the oil in it work, then getting the system evacuated like you said? Link to comment Share on other sites More sharing options...
08SpecB_DE Posted June 4, 2018 Share Posted June 4, 2018 Recover any refrigerant in the system Replace the drier Pull a vacuum for 30 minutes (should be at 30" when done) Leave it under vaccum for 10 minutes to make sure there are no leaks under vacuum Add some oil (1 Oz should be fine) Fill with correct amount of refrigerant Link to comment Share on other sites More sharing options...
lukasm62 Posted July 23, 2018 Share Posted July 23, 2018 So my A/C has sprung a leak as well and I was wondering how difficult it is to replace the dryer? I am deciding whether or not to buy a vacuum pump and DIY or just pay a shop to do it. Link to comment Share on other sites More sharing options...
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