Most helpful. Fixed AC in my 2000 Xterra. Had the same exact issue. O-ring where it meets the compressor. Cans only though. I first put in a small 10oz can of refrigerant + dye to detect, and jumping the AC relay. Didn't have the yellow glasses, but it was still quite visible mid day and with a black light taped to a stick. Got the o-rings from Harbor Freight, cheap $6. After replacing o-ring, started at zero pressure, lines empty. AC clutch engaged as you stated after a few seconds of filling. I only filled to just within green to be on safe side. I let it sit and monitored the pressure for a few minutes. Leak is gone! Thanks so much.
@@sauljob2396 You can only top off systems that are not fully discharged. In this case you should be running a vacuum pump for an hour to make sure it has no other leaks, and more importantly, no moisture remains in the system. That's what kills compressors.
The O-rings leaking at the back of the compressor seem to be a common issue on Nissan Maximas, too. I replace them with the green O-rings. My suggestion is to put a dye charge in and check with UV light. Pump it down with a vacuum pump. If the clutch is good on the compressor and there is no dye anywhere else, it should be good to go. Refill with the correct amount of 134A. Buy the vacuum pump and decent gauges. Learn how to use them. You will be glad you did. Both can be had for >$100. A small scale for weighing the refrigerant is good to have too.
Hold it Eric, you needed to use a barium grease on the o ring prior to installation. Lube it enough so that you see a shine on the o ring, but not over lube it. It lubricates the o ring and allows it to slide easily in place without tearing it or twisting it. The o ring will stay in service a lot longer and you will look like the King of AC.
Good video. The best thing anyone can do is add a small amount of dye to the system and search for the leak using the blue light. Can't imagine how many compressors were replaced needlessly at a high cost when all it needed was to replace O rings or tighten or replace the schrader valves under the high and low side caps. All DIY guys and gals alike should learn this. I am surprised that with your system line open that it actually took in that can of freon, you would normally has to pull a vacuum. Cheers.
Thanks! My Nissan Murano was leaking at bottom o ring too at compressor line from condenser and found with dye from Walmart. Getting o rings from advanced auto so gonna be a good summer after all as I was dreading no air!
Yo I picked up the same o-ring kits two different times No damage to the components but for some reason those o-rings Don't seem to be working every time I pull a vacuum there's a failure what's up with that!
He many have attempted to "purge" non condensibles by pushing refrigerant through the system and illegally venting refrigerant and the non condensibles to the atmosphere. Just a guess...I see too many people try and do A/C work without the proper equipment with the good ole boy "git er dun" mentality. The proper way would be to evacuate the system with a vacuum pump and use a micron gauge to confirm there are no leaks. If the system holds below 500 microns, the system is tight and/or properly evacuated. Then when weighing in the charge, using a scale(assuming youre using a drum of refrigerant and not small cans), you purge refrigerant through the hose to the 134a adapter while tightening it up to ensure there are no noncondensibles in the charging hose. Mositure/air is the system's enemy. PAG oil is highly hygroscopic and absorbs moisture so if your system has been sitting at atmosphere for a time, I would change the refrigerant oil with the manufactured spec'd oil.
@@robwallingsford9274 God damn right! You need a machine to fill an a/c system. I work for paccar in saint-therese canada working on brand new trucks, and all the mechanics had to learn how an a/c system works, and then we passed a small test to obtain a certificate "a card" to be able to fill an a/c system. This young guy here has never seen what a system with too much gas does?? There is a check valve that releases the excess gas, and there goes the o-zone layer!! He should of done the job and then bring the car to get the system filled. Here in canada my a/c guy charges me 100$ no tax.
Just so hapened I used dye to find allot of dye on my line. I then thought bad compressor but after thinking about it and looking at the picture I see it coming from this conection. i assumed maybe it was a evaporator from just searching leaks for my car witch causes allot of work to remove the dash and allot more. I then thought it could be the compressor after seeing all the dye and thinking maybe when i installed my alternator I made the tension too tight that maybe ruined the alternator even that may not be possible. Then thinking I might have to change the condesor too. After watching this video after searching about leaks from suction lines to compressor thanks to the dye that was able to pin point it out, I am confident that it a silly o ring. Thanks so much hoping for hope till I wake up to do this. I so didnt think it could be this easy. Afraid to take it anywhere thinking they can say whatever and might try to charge off the bat and me not knowing could think it could be worst case senario from googling ac issues.
Hello I did this and it still sprays badly from this spot could I have not gotten the o ring on properly or do I need to replace the compression line from what I am reading.
Nice vid. Question; I see a litle bit of oil around one of the fitting on low side, car doesnt blow cold air, but there is presure in the schrader valve, do I need to have evacuated still? Or can I just bleed off lines?
Hello thank you for you video and help, now Iwould like to ask you if you are ok with it I have the issue I lossing freon like you from the "o" ring low port , BUT LOOKING AROUND A SEE A TINNY DOT ON THE CENTER OF THE screw that hold the plate ( clutch ) Do I have to change the compressor, can I system be leaking from the clutch ?
You mentioned that it is safer to empty the system before removing the hose and that's fine, but removing the hose will introduce air into the system and you did not use any vacum pump to remove the air or humidity and you immediately started filling the system with refrigerant ... am I messing something?
@@ERICSDIYGARAGE I watched the video again, the word VACUM is not even mentioned. I have a leaking hose that I need to replace and the system is completely empty. Do you think it will be a serious issue if I replace the hose and fill the system with refrigerant without going through the hassle of using vacum pump to remove air and humidity that might get into the system
I got a $1700+ estimate on my 2000 Xterra so I'm replacing the components myself. I have more tools & time than money. Compressor, expansion valve, dryer & evaporator. Is there a o-ring at every connection? One end of the old expansion valve to evaporator won't disconnect so I don't know what's in there.
When you change the O-ring and put the a/c line back together, is it okay to still drive with the car for like.. 1-2days? Cause I need to visist a mecanic to help me fill the "gas". Thanks :)
Pls guide me my car gas leaked I refilled it as mechanic could not find any leakage....my question is that is it necessary to fill oil too with gas .... Pls guide
@@ERICSDIYGARAGE thnx for your prompt reply.... Thnx dear .... I myself thoroughly checked my whole ac System.... I saw very very minor oil in Schrader valve cap of Low pressure ... Is it ok or it's the place where there is leakage .. pls guide me one more thing I tried to see the cooling coil from inside of my car and find no oil spot on it... Which in my opinion reflect that there is no leakage ... pls do tell me how can I check oil level of the system at home pls...
What hose would it be from the battery side on an 03 maxima. When I go to recharge my a/c I hear a hissing(leaking) from that side but don’t see it anything on the top side
ERICSDIYGARAGE not a smart thing to do and then you are also showing people how to do this the wrong way. YOU HAVE TO PULL A VACUUM THEN PUT REFRIGERANT IN.
When the system has had a leak & lost refrigerant under pressure is one thing, but once you opened the system & removed lines.... moisture enters the system & will cause expensive problems. Really should've run a vacuum pump to draw any atmospheric moisture out of the system.... then add the correct amount of refrigerant.... just using those part store quick recharge cans without a vacuum decontamination... there will be internal corrosion issues from moisture in the sytem... compressors fail from it. Even a cheap harbor freight A/C vacuum pump & manifold guage set will work.
Hello, I'm try na replaced my ac compressor. Before taking out the old one, do I have to remove all the gas first or I can simply take out the old compressor?
These o rings don't get brittle. Mine after 20 years is still good under the microscope, no cracks still pliable and soft. You can use pure sillicon grease, just a little to help the o ring slip into place. You should push the plenum down to seat the o ring in then tighten the bolt to spec. You need to pull a vacuum first before the refrigerant refill. The moisture in the system will become acid and corrode your AC lines!
Here in a Arizona you need A/C All year round lol thank you for watching!
Watch my last video -->
ruclips.net/video/Ea55iu-CjBs/видео.html
Most helpful. Fixed AC in my 2000 Xterra. Had the same exact issue. O-ring where it meets the compressor. Cans only though. I first put in a small 10oz can of refrigerant + dye to detect, and jumping the AC relay. Didn't have the yellow glasses, but it was still quite visible mid day and with a black light taped to a stick. Got the o-rings from Harbor Freight, cheap $6. After replacing o-ring, started at zero pressure, lines empty. AC clutch engaged as you stated after a few seconds of filling. I only filled to just within green to be on safe side. I let it sit and monitored the pressure for a few minutes. Leak is gone! Thanks so much.
DIY videos like this keep me rebuilding AC Compressors 12 hours a day 6 days a week ...
Keep up the Good Work :)
Uhmm
I'll take my chances with good hearted, knowledgeable people like Eric. I've learned so much on this channel.
You not sharing what you know to help people.
@@sauljob2396 You can only top off systems that are not fully discharged. In this case you should be running a vacuum pump for an hour to make sure it has no other leaks, and more importantly, no moisture remains in the system. That's what kills compressors.
The O-rings leaking at the back of the compressor seem to be a common issue on Nissan Maximas, too. I replace them with the green O-rings. My suggestion is to put a dye charge in and check with UV light. Pump it down with a vacuum pump. If the clutch is good on the compressor and there is no dye anywhere else, it should be good to go. Refill with the correct amount of 134A. Buy the vacuum pump and decent gauges. Learn how to use them. You will be glad you did. Both can be had for >$100. A small scale for weighing the refrigerant is good to have too.
Hold it Eric, you needed to use a barium grease on the o ring prior to installation. Lube it enough so that you see a shine on the o ring, but not over lube it. It lubricates the o ring and allows it to slide easily in place without tearing it or twisting it. The o ring will stay in service a lot longer and you will look like the King of AC.
Good video. The best thing anyone can do is add a small amount of dye to the system and search for the leak using the blue light. Can't imagine how many compressors were replaced needlessly at a high cost when all it needed was to replace O rings or tighten or replace the schrader valves under the high and low side caps. All DIY guys and gals alike should learn this. I am surprised that with your system line open that it actually took in that can of freon, you would normally has to pull a vacuum. Cheers.
I'm actually changing my AC Lines because one has a crack on it. So this helps! Thank You!
Very Good video !! I saw exactly what I wanted to see
Thanks !!!
thank you for watching! glad you found the video helpfull!
Thanks! My Nissan Murano was leaking at bottom o ring too at compressor line from condenser and found with dye from Walmart. Getting o rings from advanced auto so gonna be a good summer after all as I was dreading no air!
that's awesome glad it helped you out!
Yo I picked up the same o-ring kits two different times No damage to the components but for some reason those o-rings Don't seem to be working every time I pull a vacuum there's a failure what's up with that!
Should always dab then o rings with some mineral oil before installing. Great video
O-ring needs to be lubricanted.
Perhaps it would have been wise to remove the OTHER O ring and re[place that one, too, at the same time... Thanks for video.
thanks for your feedback
Great video bro. Keep it up.... helped me a lot.
thank you I'm glad it helped you out 👍
How did you get the air and moisture out of the AC system after you opened it up
you have to use a vacuum pump
He many have attempted to "purge" non condensibles by pushing refrigerant through the system and illegally venting refrigerant and the non condensibles to the atmosphere. Just a guess...I see too many people try and do A/C work without the proper equipment with the good ole boy "git er dun" mentality. The proper way would be to evacuate the system with a vacuum pump and use a micron gauge to confirm there are no leaks. If the system holds below 500 microns, the system is tight and/or properly evacuated. Then when weighing in the charge, using a scale(assuming youre using a drum of refrigerant and not small cans), you purge refrigerant through the hose to the 134a adapter while tightening it up to ensure there are no noncondensibles in the charging hose. Mositure/air is the system's enemy. PAG oil is highly hygroscopic and absorbs moisture so if your system has been sitting at atmosphere for a time, I would change the refrigerant oil with the manufactured spec'd oil.
Vacuum pump for 2 hours or longer and hairdryer on the dryer how i did it.
@@robwallingsford9274 God damn right! You need a machine to fill an a/c system. I work for paccar in saint-therese canada working on brand new trucks, and all the mechanics had to learn how an a/c system works, and then we passed a small test to obtain a certificate "a card" to be able to fill an a/c system. This young guy here has never seen what a system with too much gas does?? There is a check valve that releases the excess gas, and there goes the o-zone layer!! He should of done the job and then bring the car to get the system filled. Here in canada my a/c guy charges me 100$ no tax.
@@ginopalladini1737new freon is not harmful to the ozone layer
Looking to rebuild the a/c system on my 66 ford. Any tips on how to remove the aluminum nuts/ threads which are probably corroded? Thanks
Just so hapened I used dye to find allot of dye on my line. I then thought bad compressor but after thinking about it and looking at the picture I see it coming from this conection. i assumed maybe it was a evaporator from just searching leaks for my car witch causes allot of work to remove the dash and allot more. I then thought it could be the compressor after seeing all the dye and thinking maybe when i installed my alternator I made the tension too tight that maybe ruined the alternator even that may not be possible. Then thinking I might have to change the condesor too. After watching this video after searching about leaks from suction lines to compressor thanks to the dye that was able to pin point it out, I am confident that it a silly o ring. Thanks so much hoping for hope till I wake up to do this. I so didnt think it could be this easy. Afraid to take it anywhere thinking they can say whatever and might try to charge off the bat and me not knowing could think it could be worst case senario from googling ac issues.
Hello i just watch the video is that ok if i charge the low pressure valve only..im planning to change my o ring on high pressure and low pressure
Hello I did this and it still sprays badly from this spot could I have not gotten the o ring on properly or do I need to replace the compression line from what I am reading.
It's probably your line
Great video tanks for help
No vacuuming the system down, moisture is a a/c killer
So you don’t need to vacuum the system for this fix?
Nice vid.
Question; I see a litle bit of oil around one of the fitting on low side, car doesnt blow cold air, but there is presure in the schrader valve, do I need to have evacuated still? Or can I just bleed off lines?
Hello thank you for you video and help, now Iwould like to ask you if you are ok with it
I have the issue I lossing freon like you from the "o" ring low port , BUT LOOKING AROUND A SEE A TINNY DOT ON THE CENTER OF THE screw that hold the plate ( clutch )
Do I have to change the compressor, can I system be leaking from the clutch ?
Does ac refrigerant discharge hose get sweat when ac is running?
if the ac line is sweating thats a good sign, it means its working as it should
ERICSDIYGARAGE mine has lots of moisture(sweated) including aluminium and rubber on low pressure line. Is that normal?
low on gas
You mentioned that it is safer to empty the system before removing the hose and that's fine, but removing the hose will introduce air into the system and you did not use any vacum pump to remove the air or humidity and you immediately started filling the system with refrigerant ... am I messing something?
I believe I mentioned that you should pull a vacuum and that this method is not the best way to refill the system
@@ERICSDIYGARAGE I watched the video again, the word VACUM is not even mentioned. I have a leaking hose that I need to replace and the system is completely empty. Do you think it will be a serious issue if I replace the hose and fill the system with refrigerant without going through the hassle of using vacum pump to remove air and humidity that might get into the system
I've been driving with the ac like this since I posted the video and I haven't had issues
Any time you have to crack open the ac system you should replace the accumulator and vacuum down the system so it lasts longer overall
I got a $1700+ estimate on my 2000 Xterra so I'm replacing the components myself. I have more tools & time than money. Compressor, expansion valve, dryer & evaporator. Is there a o-ring at every connection? One end of the old expansion valve to evaporator won't disconnect so I don't know what's in there.
When you change the O-ring and put the a/c line back together, is it okay to still drive with the car for like.. 1-2days?
Cause I need to visist a mecanic to help me fill the "gas". Thanks :)
yes it will be fine, your ac compressor wont be on because you wont have any referggent
@@ERICSDIYGARAGE Thanks alot for the fast answer! Hopefully, the o-ring will solve my leakage problem, but we´ll see :)
Pls guide me my car gas leaked I refilled it as mechanic could not find any leakage....my question is that is it necessary to fill oil too with gas .... Pls guide
Normally no you don't need to add oil unless it's a new compressor that doesn't have oil in it
@@ERICSDIYGARAGE thnx for your prompt reply.... Thnx dear .... I myself thoroughly checked my whole ac System.... I saw very very minor oil in Schrader valve cap of Low pressure ... Is it ok or it's the place where there is leakage .. pls guide me one more thing I tried to see the cooling coil from inside of my car and find no oil spot on it... Which in my opinion reflect that there is no leakage ... pls do tell me how can I check oil level of the system at home pls...
What hose would it be from the battery side on an 03 maxima. When I go to recharge my a/c I hear a hissing(leaking) from that side but don’t see it anything on the top side
What about vacumming the system was that needed?
yes you should put a vaccum on the system but I do not have a vacuum pump so I didn't do it. so far I have not ran into any issues with the ac.
@@ERICSDIYGARAGE you can get one from autozone for free as a loaner tool
ERICSDIYGARAGE not a smart thing to do and then you are also showing people how to do this the wrong way.
YOU HAVE TO PULL A VACUUM THEN PUT REFRIGERANT IN.
@@artbyrobot1 not free they charge for loaner tools but you get the money bacj
Hi what type of o ring lubricant is that?
Mine is leaking from the High pressure o ring. Is it needed to unpressurize the hose?
yes or else it will blow up in your face dont ask how I know
Any repairs requiring opening the A/C system requires recovery of the system's refrigerant to prevent injury.
You should attach your vacuum cleaner to ensure the system is dust free and in vacuum before filling... pro tip.
There will be moisture still because the correct way is to vacuum the system before adding refrigerant
I did mention that this is not the correct way of refilling your AC system
When the system has had a leak & lost refrigerant under pressure is one thing, but once you opened the system & removed lines.... moisture enters the system & will cause expensive problems. Really should've run a vacuum pump to draw any atmospheric moisture out of the system.... then add the correct amount of refrigerant.... just using those part store quick recharge cans without a vacuum decontamination... there will be internal corrosion issues from moisture in the sytem... compressors fail from it. Even a cheap harbor freight A/C vacuum pump & manifold guage set will work.
What about evacuate the system before recharge
What happened to pulling a vacuum?
Does anyone know what the hose from the compressor to the condenser is called? Also is it the suction line?
discharge line (high pressure) and suction line (low pressure)
thank you
can I get O rings which is not the actual brand of the car? Or it has to be the brand of the car?
Yes as long as they are rated for ac
@@ERICSDIYGARAGE thank you
Hello, I'm try na replaced my ac compressor. Before taking out the old one, do I have to remove all the gas first or I can simply take out the old compressor?
You have to evacuate the system
Does the drier needs to be replaced when the line is opened?
I don't believe its necessary
Every time the system is opened up per most manufactures
Nice video..
thank you!
Good video A++++++++++++
These o rings don't get brittle. Mine after 20 years is still good under the microscope, no cracks still pliable and soft. You can use pure sillicon grease, just a little to help the o ring slip into place. You should push the plenum down to seat the o ring in then tighten the bolt to spec. You need to pull a vacuum first before the refrigerant refill. The moisture in the system will become acid and corrode your AC lines!
My camry has hissing sound after engine turns. It must be ac hose gasket damaged.
Where is the vacuum pump to evacuate the system & get all the moisture out of the system.
Be sure which O-ring yours uses. Most use the Aluminum and rubber ones.
bruh wait your telling me you have to replace the drier every time you open the ac system????
Mechanic tried to charge me 700 for this...
you don't you have to pull a vacuum??
I thought you had to pull a vacuum first
Was i the only one bothered by the grease that he left on the line lol ?
Relying on “good luck” to not destroy your AC so you can save a few bucks doesn’t seem like a good idea.
I guess it's a good thing is still working 💪
I think this buttle not enough!
ORing Grease/Lubricant????????????????????? ..............Z
This sht is so annoying, the car blows warm air and affects the car's drivability some
Yt
You might want to mention that the system desperately needs to be vacuumed before refilling.
Even if it’s had a severe leak and is empty?
Especially since it will have air and moisture