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A/C Compressor Leaking PAG oil
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mmillikan
Novice
Dec 9, 2010, 12:02 PM
Post #1 of 12
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A/C Compressor Leaking PAG oil
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1995
Honda
Accord LX
2.2L Engine
130,000 Miles
Hello I have a 1995 Honda Accord Lx and I have had some problems with my air compressor. The issue started with my car battery, it was dead after sitting over night(this happened a few mornings). I put in another battery and the car will run, but when the car is idling it will start to squeal and smoke and I discovered that the sound was coming from my air compressor. There is PAG oil leaking from my compressor which is what is causing the smoke and I do not know what is squealing(it sounds like a dying animal).
I know the belt that runs the air compressor also runs my alternator so I suspect it's possible my alternator is not charging my battery properly. I have gotten my alternator tested and it is still good. I have been told by a few people that I can disconnect my Air compressor since I will not be using my AC for the winter, is this possible or even a good idea? I am looking for a quick fix that will keep my vehicle running until I can afford to replace the air compressor(most likely next month). Can anyone help me to know what needs to be done in order to fix my car and also any temporary fixes? Thank you
(This post was edited by Tom Greenleaf on Dec 12, 2010, 8:15 AM)
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Dec 9, 2010, 2:10 PM
Post #2 of 12
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Re: Air Compressor Leaking PAG oil
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Un plug it at once and safely tie plug away. Sure sounds like compressor is in process of seizing completely which will quickly take out the belt and render you a pedestrian.
Now if noise continues with compressor disengaged the clutch has a fault but alone it doesn't have A/C oil in it and not involved with refrigerant.
Belt must be on properly and with proper tension. Neither make compressor leak if wrong.
So yes it's ok to disconnect compressor and go all Winter. Because belt has been stressed out it should go right away for new.
Dead battery may or may not be related but compressor alone except for perhaps stopping the belt shouldn't take out a battery,
T
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mmillikan
Novice
Dec 9, 2010, 2:21 PM
Post #3 of 12
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Re: Air Compressor Leaking PAG oil
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Thank you for your help. So since my Air compressor is in process of seizing, does this mean that I need to get a new air compressor or does this mean I need to find the leak, fix it, and replace the PAG oil? Also did you say that I should replace the belt? I wasn't sure because you said "because belt has been stressed out it should go right away for new." I wasn't sure what you meant. Thank you again for your help!
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Dec 9, 2010, 2:33 PM
Post #4 of 12
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Re: A/C Compressor Leaking PAG oil
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OK: Call it an A/C compressor so not confused with some air compressor - it isn't compressing air.
Belt should be replaced now, clean off pulleys that may have oil on them. If it slipped and squealed enough it has been stressed.
Leaking A/C oil is somewhat common from the shaft seal or body gaskets of the housing. No matter it probably lost refrigerant and when low oil doesn't travel with the refrigerant and compressor can burn out. That issue for later. I have to trust your eyes that it is in fact A/C oil and not a spill from filling something else or some other strange reason,
T
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Hammer Time
Ultimate Carjunky
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Dec 9, 2010, 3:40 PM
Post #5 of 12
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Re: Air Compressor Leaking PAG oil
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If your compressor is actually locking up, it's not being cause by any leak. The smoke you see is the belt slipping and it's not likely because of oil. It's either extremely high pressure or a compressor that is just seizing up. Either way you have very serious and expensive problem to resolve. Unplugging the compressor should keep you out of trouble for the time being. If you have tried to add refrigerant to it yourself, that may be your whole problem.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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mmillikan
Novice
Dec 10, 2010, 1:59 AM
Post #6 of 12
(8843 views)
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Re: Air Compressor Leaking PAG oil
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Thank you for your reply. I recently bought the car so I am not completely sure of it's history which makes things difficult. I do know that the A/C compressor was recharged before I bought it. Do you think this may have caused the leak? Also the belt seems to be in good shape, how do I know for sure if I need to replace it?
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Hammer Time
Ultimate Carjunky
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Dec 10, 2010, 3:44 AM
Post #7 of 12
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Re: Air Compressor Leaking PAG oil
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It didn't cause the leak but it could certainly cause the locking up part if it was overcharged or if it had a fan problem in the first place. That's why you should never just arbitrarily add refrigerant to a system. Having too much can do major damage to a system.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Tom Greenleaf
Ultimate Carjunky
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Dec 10, 2010, 9:00 AM
Post #8 of 12
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Re: Air Compressor Leaking PAG oil
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To add: Leaks were well known as the #1 reason for poor A/C performance or not working at all. Now with so many DIY kits with sealers of unknown junk it throws a wrench into the mix. Needing a boost at so many years old isn't uncommon. If not into this crap overcharging or sealers are capable of ruining a whole system - bummer and not good DIY stuff to do without really knowing what you are doing,
T
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mmillikan
Novice
Dec 10, 2010, 3:57 PM
Post #9 of 12
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Re: Air Compressor Leaking PAG oil
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So after getting a new battery for my car, I let the car sit and idol to see if the same problem would happen and nothing happened even with the heat on or the A/C. I don't know if I mentioned before that my car only smoked and squealed only when idling, but not when driving.
I am wondering if having a poorly charged and bad battery in my car was causing my alternator to run too hard and affect the a/c compressor and belt. Any thoughts to this?
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Tom Greenleaf
Ultimate Carjunky
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Dec 10, 2010, 4:28 PM
Post #10 of 12
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Re: Air Compressor Leaking PAG oil
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That doesn't explain the oil leaking. Try taking belt off and spin the pulley of compressor. If that's ok than just unplugging it would be enough for now. If well overcharged it would express itself as poor cooling and when colder out would become a liquid earlier and hydraulic lock could occur and if that happened AND caused oil to leak if definitely from compressor it's shot now. Forgot on earlier post that there are or should be two "O" rings which attach to high and low hoses as a unit or separately.
Some variables here. If capable of being quiet it could be when cycling off and if overcharged the higher rpm could and would create higher pressures and when very high would shut down compressor. If it worked predictably well in warm or hot weather it probably isn't way overcharged. If sealers have been used all bets are off as to what can happen. Still - if leaking oil unless a one time thing from a safety pressure release valve it will need real work and parts. The only way to know exactly how much refrigerant is in it, is to take it all out to a well held vacuum and fill by listed weight. Taking pressures is indicative but can't know exact amount of what's in it,
T
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mmillikan
Novice
Dec 11, 2010, 4:52 PM
Post #11 of 12
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Re: Air Compressor Leaking PAG oil
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Interestingly enough I bought a brand new battery two days ago and it started and ran just fine the past two days, however today the battery was dead. I really have no idea what could be causing this... I am starting to think my car has some underlying issues that I am not seeing. So... the alternator was tested and found to be good, brand new battery, my A/C compressor isn't unplugged, but it also hasn't been used either. I have had a lot of car issues over the years, but this variety of issues is baffling me. Any suggestions to how to identify the main problem? Maybe a computer scan?
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Tom Greenleaf
Ultimate Carjunky
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Dec 12, 2010, 8:14 AM
Post #12 of 12
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Re:95 Accord Compressor Leaking PAG oil
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Changed subject line - you can tell me to change it as you wish.
OK: Limited info from a 95 OBDI system computer info but do one anyway.
Prices of most everything is up - batteries included. DON'T ALLOW IT TO GO DEAD! They can and will self destruct being dead new or not.
If a drain strong enough to take out battery exists you can put a test light between unhooked neg bat cable and grounded device and should light with a stronger drain. Then pull fuses until it quits - only telling of which circuit is causing this then the hunt is on,
T
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