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Wow. I used to recharge my a/c myself with the Freon they sell at auto stores and after I’ve seen this video I’m still going to recharge it myself. Thank you
But if something is wrong on the high side you'll never know it. He has a point. I use em, but I also did just change my orifice tube and blew through my coils to make sure they were clear.
Used AC Pro and a small can of lubricant mixed with R134A. My truck is blowing ice cold two seasons now. Not doubting Scotty, but getting a mechanic to do it costs BIG TIME!
Don't use any cans with Stop leak, I too have been avoiding mechanics but stop leak clogged up my AC line. If you use any, make sure it is just Refrigerant with NO added sealing stuff.
I'm an HVAC tech. I agree with most of what you said except that when a system is void of refrigerant it should be leak Checked and then after finding and repairing the leak it should be pump down into a vacuum and then the refrigerant should be weighed in as you described. By the way I enjoy your videos.
@@davidrosa4156 if you have a micron gauge and can pull the system down to 500 microns that's a good indication that you don't have a leak. If your using just the gauge like Scotty did you could be overlooking a very small leak that takes months to reveal itself, soil you want to be sure use a micron guage.
I took my 2005 Ford to a "reputable" A/C" repair shop several years ago and was told I need a new $1000 compressor. I put in part of a can of A/C Pro following instructions and it still works great!
The problem is sooo many shops are filled with ppl who aren’t paid well enough to care. They don’t have great reputations and most ppl have no idea what they are looking ar
I've started messing with cars at 9 years old with my dad.. I'm 73 now and i still work on cars. I'm not to old to learn something new and watching Scotty I sometimes pick up something that makes it easier for me to repair.
And then what, guess? It only cost $100 to get a pump and gages. It cost several hundred dollars to have the system fixed if not thousands. Not worth the risk really.
I tried that with mine, and it would not shoot refrigerant into the air while pulling trigger. It would only dispense once connected to suction port. Is that normal? How can you purge if it won't do that till it's connected?
Take it from a pro, this man knows what he talking about. I've used the can of freon when on a road trip, but when I returned home I put vehicle in shop to have it checked and had it done properly. Keep up the good advice.. it'll save folks money in the long run.
Always keep in mind when Scotty talks about not doing something, if you drive an old beater, and you just want colder AC and don't care if something goes wrong in a year or two, do it
The A/C on my 2012 Navigator in July 2023 was blowing only slightly cool, so I topped it up with a can of A/C PRO 134a refrigerant with a leak seal additive and got 38 deg. F at the vents. I turned the A/C on for a few minutes, a few times during the winter, to keep it lubricated. Now in mide-June 2024, during a heat wave, the system is still blowing at 40 deg. F. at the vents. The extreme slight loss of refrigerant probably occurred before the sealant had a chance to work in 2023. Awesome product and saved a bundle of cash.
I've taken a lot of advice from scotty but not this one. I've been using recharge cans as long as I've been driving on multiple vehicles and never had an issue. Always blew cold when I was done and it never made an issue worse. Infact one time I was recommended a new compressor and instead just did cans every 6-8 weeks in the summer. I also used ac sealer once and that too worked fine and fixed a severely leak ac system for 3 more years.
I'm sure Scotty is right here, but I feel like telling the average person to hook up an air compressor to their AC is way more riskier to damaging their AC system than hooking up one of the r134 cans. But idk.
It's good information, but it's worth a try, if it doesn't work you will bring it in and they should evacuate it and eliminate any problems you created like putting air into the system. The low volume and low-pressure warnings are worthwhile, I will do incremental input and not just empty the can into it. If it cools fine after a partial fill I will stop, he sounds like a mechanic who wants to do those easy/expensive AC repairs. If it was annual, I probably would try to find the leak and bring it in telling them what I found. Considering the quality of repairs, I suspect they would do close to the same thing and not fix the leak.
Danny, I am 74 years old and have been adding Refrigerant for over 40 years, never have i messed up anything concerning my air conditioner, if the Low Side is Low, usually the High Side is Low and these days I do use the Walmart Bottles with Gage on them-save gage to use on the cheaper cans...
Of you have minor leaks does ac pro kit helps to fix that? Can i get cool air for couple of months? Because mechanic said there is leakage and we cant find it. They’re asking too much to check cabin evaporator. I am middle of spending a little and too much. Ac pro kit could be an experiment for me. Looking for suggestions.
@@thomasshelsaybye8220 It claims to have the best sealer of these recharge kits. It seemed to have the best reviews. I just used it on my car but now the compressor rapidly turns off and on, so not sure wtf is going on. In your case, you can get the 20 ounce can at Walmart for $30 locally, so probably worth a shot.
Thomas Shelsaybye you can use it no problems. You probably have the leak in the evaporator is the reason you cannot see or find it. That means dash removal! Stick a can of it, if the leak is real small might last you a few months even for the summer until it leaks out
Thomas Shelsaybye this the problem, people doing things that they are not competent in doing, also there are several brands os products which will seal small leaks, but you will not find these in the auto move stores , Cheers from usa🇺🇸🇺🇸🇺🇸🇺🇸
@@angelarobinson4374 you have to fill the system to the correct amount and see if it comes on, if it doesn't than either the pressure switch is bad, the ac relay is bad, or the compressor is bad..
Scott, you know your stuff. I studied Hvac-r in college for a couple of years. You didn’t miss a thing. That’s exactly how you vacuum and charge a system. Thanks for all your tutorials.
Kimi Jong Highball. I have a 2009 Honda civic and I vacuumed and added freon after vacuuming has 35 to 40 of freon but it's not blowing cold. It's just a little chill when I'm driving but at a stop the car blows humid to hot
El Jefe you put to much in. If you don’t know what you’re doing just let a little out at a time till it blows cold or just let it all out and see how much it’s supposed to hold compared to how much the can holds and get it as close as you can or bring it to a shop.
I have used the diy gauges for years with no problem. Yeah it’s not going to be ideal for your ac system but as long as you pay attention to the pressure gauge and cut the flow off at the max line on the gauge it will be fine. If you have to refill it every summer then you probably need to have it checked with the correct equipment.
Note: all guides including the instructions on the can say to never max it out. As soon as it reaches green they want you to back off to avoid the high pressure damage.
One time I put way too much in and the AC wouldn’t work when it was hot outside. So I released some refrigerant a little at a time from the low pressure side until the AC was blowing cold. I thought for sure I blew up the compressor but it worked good for years.
Mark of superior intellect that he doesn't sound "normal" Big trouble now in the USA because we cater to the "much less than intellectual" crowd. No on really knows what is happening.
Man I’m sure I missed this give away but I’m telling you Scott. You are a life saver when it comes to knowing what I can and can’t do myself. I’ve always considered myself a good mechanic that can do all my own work myself. Watching your videos has humbled me and motivated me to learn all that I can the correct way so I am not cheating myself or others that I help. Thank you sir
@werockclimb, As a professional technician of many years, I have learned there is always something else to learn. The right information is always a good thing. Take care and all the best.
Finally, a professional video with professional instructions. Thank GOD for Scotty Kilmer. An honest man that is a PROFESSIONAL MECHANIC who KNOWS exactly how to repair an automobile the proper and correct way. Thank you SIR for kind heart by showing your viewer's how to perform this procedure. God Bee you and yours.
@@guesswhomartin9249 you dont need to buy all that stuff, just the refrigerant. You can usually get the pump and gauges from an auto parts stores like oreillys or autozone who have a loaner tool program.
you can literally rent those at autozone. if you top it off most likely you're going to ruin your ac compressor prematurely. same thing you do with your house a/c. don't want non condensables/moisture in your system. I did my friends and it only cost me like $40.
Yes, kiddies but paying attention is something you didnt do. What is the one thing you dont have? Any accurate way of measuring the freon going into the system without a scale and usually a 30lb can of freon to put on that scale for any real accuracy in this job. If guessing was okay then a lot of AC systems would not have failed within a month or two of loading these systems wrong. If you po, then your ac no mo, you roll the windows down.
@@chimayinasniffer Dude - we switched to R134a some 30 years ago to stop ruining the Ozone Layer. However the hand-wringers back then said it takes 50 YEARS for the R-12 to get up that high in the atmosphere and break down, so we STILL have Freon from car crashes in the '70's tearing up the Ozone.
You usually don't need to worry about both the high side and the low side unless you are recharging a system with no pressure. AC refill cans often work quite well!
Thanks for the informative video, Scotty. I recently took my Honda in to my local mechanic shop. They use a machine that does it all automatically. They evacuated the system, cleaned out the system and added just over 1/2 pound of refrigerant. Cost me $80, but it was done correctly with low/high side gauges. After watching this video, I’m glad I took it in.
I don't know if this applies to your situation, but...I found there's a difference between asking for the system to be recharged versus telling the shop/dealer that the A/C isn't working. If you want them to diagnose whether there's a problem with the system to find out if it needs more than a recharge, which is always possible, that's more like $400 -- $300 to diagnose and then $100 if it turns out it's just empty and they refill it.
I don't believe you. NO SHOP would charge just $80 for a full evac, "cleaning out the system" (whatever that is, which sounds bogus), and refilling with refrigerant. If you are being honest, then they probably didn't do hardly anything. Most shops and dealerships will charge you $90 just to replace your engine and cabin air filters, which costs them about $15 or less wholesale (combined) and takes less than 5 minutes to complete. So either they just replaced a fuse or squirted a quick shot of refrigerant in, or you recollection of what they charged is wrong.
Good video Scotty, but you left out something ? You forgot to hold the pressure to check. See if you have any leaking ac . Scotty, you are right that’s how you do it.💪
One thing he didn't show is on a set of manifold gauges there is a bleeder valve that you're supposed to bleed air from the gauge/hoses before opening up the valve to charge the system. Other than that very good info as usual
Wow, Great job Scotty!!! Thank you so much for taking your knowledge and sharing it with the world!! A few years ago you took an Uber ride and my father-in-law was the driver. He had a great time with you and said you were a wonderful person. He suggested to go checkout you channel and I am so glad I did. Keep up the awesome work. True automotive mechanics are becoming a rare find these days!!!
Hi Scott, sadly I am 1 year late for the contest but I am a shade tree mechanic to say the least. And I have watched almost all of if not all your videos. I appreciate your knowledge it has helped me to be a better mechanic. I don't do it for money I just work on my own stuff and maybe family members and friends. You have been a big help when I need to be precise on something that I'm not sure about. I truely hope you continue your channel
Scotty I been listening and watching you’re videos for about 3 years now and I learned a lot , I had an family member teach me the basics on general mechanic. But now with the new vehicles and new technology I relay on you’re videos to guide me on some light repairs or preventive maintenance. I want to thank you and keep up the good work and share the knowledge.
Its old school but it works. Question, has anything blown up or did ur compressor lock up yet? I need to replace the refrigerant in my 2013 fiesta cuz I'm sweating to death whenever I step in for less than 2 minutes
@@taimank lol. I mentioned that because the cans have stop leak and a dye to find leaks. A professional AC repair shop might deny service because those two additives ruin their evacuation machines
Scotty youre absolutely correct, and if you follow the procedure correctly a good ACmachine will also compensate for the refrigerant in the hoses to give you the best refill possible, but only after you vacuum the system to ensure theres no leak. thanks, pete
Mark C if you know what you’re doing, it’s easy to do. Look up a proper video on how to do it. I’ve recharged my car three years ago and it’s still going great to this day.
I'm in California same do my self ACPRO and Autozone cans and no problem for 20 years. I'm belive Scotty need Medical HELP, he recomended some products and cars/trucks and late on desapointed.(wy) you have the answer NO MORE COMISSION is the reason
Scotty, there is a trick with the A/C Recharge kit. You are concerned with "air & moisture" getting into the system. Connect the quick connect to the low side. Start screwing on the canister until it stops, don't puncture the can! Depress the trigger and back off the canaster until you hear a hissing sound. Then wait 4 seconds. With the trigger down, screw the can all the way on and puncture the can. You know what to do from here. I have a new vacuum pump. My air is now freezing cold.
Hey Scotty. Every single time I was your videos you explain them so well for people to understand. I'm amazed for all your help you have available for anyone to use. And most of all. Thank you for what you do.
Ok....you have to understand the real message here when recharging. The AC Pro works as it is used for LSP port...that means you have to charge the system without over loading the low side with too much pressure and refrigerant...think of it like those Soda Stream machines that will put CO2 into your water to make it fizzy. They caution you not over charge more than 4 pumps or you will find fizzy water all over the place....I know about this and you need to follow the directions. SAme with this way of charging your AC until...use the gauge and don't put more than you need as I will squeeze the trigger until the arrow is less than full.....this keep your unit from being overcharged and you don't have to deal with the HSP ( High Side |) issues of overcharging. Scotty is right...mess up that side of things and you got some real problems. If anything...charge 3/4 full as that is more than enough refrigerant to keep your system cool....as long as there are no leaks that is more than plenty to do the job so why try to put a full charge when 3/4 is the best way to go? It's not a gas tank where you "top it off"......
Hi, my 2010 Mini Cooper aircon is blowing out warm air. If I buy one of these kits, will it regas and seal any potential leaks? Thanks, never done this before!
I really like Scotty's delivery on any car subject. He's a no non-sense guy that is gets to the point on everything and doesn't waste time taking a bolt or nut off allllllllll the waaaaaay. Out of all the video guys out there who Im sure are good themeselves Scotty is number 1 for me. Besides, he has a real cool opening...Rev your engines!
How about shutting the valves and waiting 30 minutes to 1 hour after you've drawn a vacuum to see if you lose vacuum? If so, you have to find the leak before recharging or it will just leak out again.
when you pulled vacuum, you left out one detail. leave set for10 or 20 minutes to see if there's vacuum loss, aka a leak. other than that spot on. nice job
The glass bubble window on old car ac systems is called a (see-all) or sight glass. filling from the low side is fine with even the cheap gauges. 134a is pretty forgiving. I have tested it against real gauges vs the ones on the fill cans. pretty close results, nothing to worry about. also just hold the valve open to remove air in the fill tube before filling for a second or 2. so no additional air goes into the system.
@@Littlemsambitious The low side valve is a basic Schrader valve pretty much the same as what's used on most car/bicycle tires. If I understand him correctly, he's saying depress the pin in the valve for 1-2 secs to bleed the air out of the fill tube. Hope I haven't misled you..
I don't think he is is saying the self recharge cans don't work. clearly they do. I believe he is saying its easy to over charge the system and cause damage. if you are careful the cane are a good tool.
@@carlhammill5774 - But that's just it, people get to the green line and it's still not cold so they figure, well keep going!! With variable compressors in modern cars the low side pressure means nothing in terms of indicating when a system is "full".
Thats why you make sure your car is running with ac is on. That way everything is open and you get your reading for both sides. You see i think scotty is wrong about how he is explaining the situation.
To use a two-gauge manifold with the cheap cans, you need a special can piercing valve. Definitely want to purge any air out of the hoses, and use a scale. Moisture is very destructive!
I wish I had seen this video yesterday. The tempurature was close to 90 yesterday in Minneapolis & the shop I went to said I could make an appointment for Tuesday. So I bought the small can & then a hose to attach to the low side. I am getting cool air, but cold. So I will indeed go to a shop to have it done right.
I love Scotty's videos! I watch every one, not only for the quality information but also for the entertainment factor. Keep it up Scotty!!! And thank you!
Bravo, Scotty. You have probably saved my a/c system on a really great(as far as I am concerned) 2007 Grand Caravan. Another step closer to heaven for the inimitable SCOTTY!
Thanks Scotty! I'm doing it the wrong way, because I already started, and the AC is blowing warmer than when I started. I had hooked up the can without removing the safety tab, so I drained it out the low side port. I could really use a vacuum pump.
I just watched one of your vids the other day where you are saying how easy and cheaper it is to do this as long as it has the gauge. Now I see this vid saying don't.
I have used the R-134a cans as well, but Scotty is right about this. This is the right way to do a charge on your cars AC unit. We all have just been lucky that are system worked afterwards.
Sounds great, but the reason the common person tries it themselves is because mechanics always go straight to “you need a new compressor” or some other $2000 job! I’ve been driving 43 years now and have never had a mechanic say it just needed to be filled!
@@star-army I'm facing down a serious AC leak that needs fixing, and I'm gonna have to do it at some point so this is super helpful info. I didn't know they rented tools.
Finally, someone explain and show the proper way it's done! I helped a guy, when I was a kid, in the early 80's was the last time I had contact with refrigerant filling, I do need to fill my car, the ac works, but just not that cold on really hot days, 2012 avenger!
2 things: 1. Cars have a high pressure cut off and a pop off. 2. If you’ve been doing this 30 years and think he’s spot on, you just need to quit. You obviously don’t know exactly what you’re doing.
@@AnonyMous-jf4lc so just put 8 pounds in the system and don't worry about it. The pop off valve will take of it. That's real sound logic, you're clueless.
Reading comprehension and cognitive ability are obviously not your strong suits. This is why there are a ton of mechanics and next to zero actual technicians.
MX after 30 In ALL THE YEARS I have NEVER EVER SAW A HIGH PRESSURE CONTROL ON ANY CAR OT TRUCK, but good compressors do have a RELIEF VALVE & a LOW PRESSURE CONTROL,Cheeer🇺🇸🇺🇸🇺🇸🇺🇸
AC tech here, in school we were taught that you shouldnt charge the low side of any system with vapor because it can cause the refrigerant to fractionate. I know this is the case for r410A but idk about that refrigerant you are using. I am still new in the trade and learning stuff
Well, guess what, mister? If you're publicly admitting to it, you're going to EPA jail! Officer Treefern and Superintendent Cowfart are also going to fine you $500k! Just kidding. That is how the EPA treats people that get caught doing commercial venting. We learn about it when we get HVAC certs.
R134A is the same stuff in computer duster and freeze spray. Nobody is going to jail. That little purge is extremely important as well. Oxygen and water vapor will make corrosive acids from the lubricant (same stuff as in brake fluid believe it or not) and the gas itself.
@@NobodyCaresALot i am HVAC certified and lines have to be purged. The venting to the air is when you dont recover the refrigerant when you open up the system for repair
So true! I tried self-servicing my 2006 BMW 750LI. Wrong move. It was way over-serviced and I was lucky that when I took it to the dealer I had not destroyed the system. I gladly pay the extra $ to get my car serviced right the first time.
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Happy Memorial Day Scotty!!.
Thanks!!.
It can happen! Keep up the great work Scotty!
Nothing happy about Mermorial Day...
@@4gauge10 Nothing happy about Mermorial Day...
Wow. I used to recharge my a/c myself with the Freon they sell at auto stores and after I’ve seen this video I’m still going to recharge it myself. Thank you
Lmao
😂
my g
😂😂😂😂
Sure your 1998 Ford Fiesta can handle it.
I've used the recharge cans for years and never had a problem. If I can avoid the mechanic I will
But if something is wrong on the high side you'll never know it. He has a point. I use em, but I also did just change my orifice tube and blew through my coils to make sure they were clear.
I used recharge cans on my 2008 BMW (pos) and it was ice cold four years later.
Just bleed the air out of the hose before shooting any refrigerant in and your good to go
@@Rforce78 HI to relieve air you just press the valve correct on th econnector right? and on the high presssure valve or on both the low and high?
@@carlosb1 no
Used AC Pro and a small can of lubricant mixed with R134A. My truck is blowing ice cold two seasons now. Not doubting Scotty, but getting a mechanic to do it costs BIG TIME!
I always have doubt when he posts...so many opinions that are just way too far out.
Dude is 100% correct.
@@hhjhj393 so don't use on expensive new cars, use on crappy old cars which the majority of us have
Don't use any cans with Stop leak, I too have been avoiding mechanics but stop leak clogged up my AC line. If you use any, make sure it is just Refrigerant with NO added sealing stuff.
Scotty Kilmer is the man ❤😎 I work for gm , well and Honda or the lowest bidder ❤️😎
I'm an HVAC tech. I agree with most of what you said except that when a system is void of refrigerant it should be leak Checked and then after finding and repairing the leak it should be pump down into a vacuum and then the refrigerant should be weighed in as you described. By the way I enjoy your videos.
Isn’t leaving it on a vacuum pump enough to let you know about leaks? It won’t be able to create a vacuum with leaks in the system.
@@davidrosa4156 if you have a micron gauge and can pull the system down to 500 microns that's a good indication that you don't have a leak. If your using just the gauge like Scotty did you could be overlooking a very small leak that takes months to reveal itself, soil you want to be sure use a micron guage.
I took my 2005 Ford to a "reputable" A/C" repair shop several years ago and was told I need a new $1000 compressor. I put in part of a can of A/C Pro following instructions and it still works great!
The problem is sooo many shops are filled with ppl who aren’t paid well enough to care. They don’t have great reputations and most ppl have no idea what they are looking ar
@@vanderumd11 In their mind, they are getting screwed so they figure they might as well screw you. The wonderful human chain of life.
@@JSustain Why not call us unhuman? wonderful human chain? WTF is that?
@@irisbaez1972 as opposed to animal food chains? Maybe they are the same to you?
@@JSustain ja,ja,ja. in the way we are, I don't see humans but humanoids full of demons. the demon of pride possesses us.
I've started messing with cars at 9 years old with my dad.. I'm 73 now and i still work on cars. I'm not to old to learn something new and watching Scotty I sometimes pick up something that makes it easier for me to repair.
Once the hose punctures the seal on the can, you can squeeze the trigger and purge the line before snapping it over the connection.
And then what, guess? It only cost $100 to get a pump and gages. It cost several hundred dollars to have the system fixed if not thousands. Not worth the risk really.
I tried that with mine, and it would not shoot refrigerant into the air while pulling trigger. It would only dispense once connected to suction port. Is that normal? How can you purge if it won't do that till it's connected?
@@Kman-hw9pf
Try shaking the can first?
@@steeloned yes I did
@@manhandlerwho cares if your ac doesnt work to begin with lol
Take it from a pro, this man knows what he talking about. I've used the can of freon when on a road trip, but when I returned home I put vehicle in shop to have it checked and had it done properly. Keep up the good advice.. it'll save folks money in the long run.
Scotty rocks
He’s our man
Fixing them cars
Like no one else can
Me: I wanna fix my car
Scotty: get rid of it
Anthony Anza it's a money pit
Piece of junk
Get a 98 Toyota... Everything else is a mistake
Scotty: Don't
These comments are the funniest lmao
Always keep in mind when Scotty talks about not doing something, if you drive an old beater, and you just want colder AC and don't care if something goes wrong in a year or two, do it
The A/C on my 2012 Navigator in July 2023 was blowing only slightly cool, so I topped it up with a can of A/C PRO 134a refrigerant with a leak seal additive and got 38 deg. F at the vents. I turned the A/C on for a few minutes, a few times during the winter, to keep it lubricated. Now in mide-June 2024, during a heat wave, the system is still blowing at 40 deg. F. at the vents. The extreme slight loss of refrigerant probably occurred before the sealant had a chance to work in 2023. Awesome product and saved a bundle of cash.
I've taken a lot of advice from scotty but not this one. I've been using recharge cans as long as I've been driving on multiple vehicles and never had an issue. Always blew cold when I was done and it never made an issue worse. Infact one time I was recommended a new compressor and instead just did cans every 6-8 weeks in the summer. I also used ac sealer once and that too worked fine and fixed a severely leak ac system for 3 more years.
I'm sure Scotty is right here, but I feel like telling the average person to hook up an air compressor to their AC is way more riskier to damaging their AC system than hooking up one of the r134 cans. But idk.
It's good information, but it's worth a try, if it doesn't work you will bring it in and they should evacuate it and eliminate any problems you created like putting air into the system. The low volume and low-pressure warnings are worthwhile, I will do incremental input and not just empty the can into it. If it cools fine after a partial fill I will stop, he sounds like a mechanic who wants to do those easy/expensive AC repairs. If it was annual, I probably would try to find the leak and bring it in telling them what I found. Considering the quality of repairs, I suspect they would do close to the same thing and not fix the leak.
Danny, I am 74 years old and have been adding Refrigerant for over 40 years, never have i messed up anything concerning my air conditioner, if the Low Side is Low, usually the High Side is Low and these days I do use the Walmart Bottles with Gage on them-save gage to use on the cheaper cans...
Thank you Scotty. You videos are awesome. I will be trying your method.
should have replaced both the Schrader Valves inexpensive to do :)
I've been using these kits for years! Ive never had an issue! Screw paying 100s!
slow leak, added twice with the kits....so far...no problems....2008 subaru forrester....next time I have to get the leaks fixed.....
Of you have minor leaks does ac pro kit helps to fix that? Can i get cool air for couple of months? Because mechanic said there is leakage and we cant find it. They’re asking too much to check cabin evaporator. I am middle of spending a little and too much. Ac pro kit could be an experiment for me. Looking for suggestions.
@@thomasshelsaybye8220 It claims to have the best sealer of these recharge kits. It seemed to have the best reviews. I just used it on my car but now the compressor rapidly turns off and on, so not sure wtf is going on. In your case, you can get the 20 ounce can at Walmart for $30 locally, so probably worth a shot.
Thomas Shelsaybye you can use it no problems. You probably have the leak in the evaporator is the reason you cannot see or find it. That means dash removal! Stick a can of it, if the leak is real small might last you a few months even for the summer until it leaks out
Thomas Shelsaybye this the problem, people doing things that they are not competent in doing, also there are several brands os products which will seal small leaks, but you will not find these in the auto move stores , Cheers from usa🇺🇸🇺🇸🇺🇸🇺🇸
Would it be a good guess to say my AC is low if it’s blowing air hotter than the suns surface
recharge it yourself
@HexagramMan how can I tell if the air compressor is done for
Angela Robinson turn the car on and listen to try and hear the compressor working
😂😂
@@angelarobinson4374 you have to fill the system to the correct amount and see if it comes on, if it doesn't than either the pressure switch is bad, the ac relay is bad, or the compressor is bad..
I used this stuff 10 years ago and over 100,000 Mi ago, on my car. Still working like a charm!
I recharged my car once in high school with a can. It worked, but I had no idea of the danger or damage it could do! Thanks Scotty!
dmatteson2006 same until this day 😂
Dude you the Bombay!
I recharged my AC on 3 different cars and they still worked then n now 😂
Scott, you know your stuff. I studied Hvac-r in college for a couple of years. You didn’t miss a thing. That’s exactly how you vacuum and charge a system. Thanks for all your tutorials.
Kimi Jong Highball Lot or money in HVAC, right?
@@standyourground9973 say what?? "of"
Kimi Jong Highball I have a?
Kimi Jong Highball. I have a 2009 Honda civic and I vacuumed and added freon after vacuuming has 35 to 40 of freon but it's not blowing cold. It's just a little chill when I'm driving but at a stop the car blows humid to hot
El Jefe you put to much in. If you don’t know what you’re doing just let a little out at a time till it blows cold or just let it all out and see how much it’s supposed to hold compared to how much the can holds and get it as close as you can or bring it to a shop.
I have used the diy gauges for years with no problem. Yeah it’s not going to be ideal for your ac system but as long as you pay attention to the pressure gauge and cut the flow off at the max line on the gauge it will be fine. If you have to refill it every summer then you probably need to have it checked with the correct equipment.
Note: all guides including the instructions on the can say to never max it out. As soon as it reaches green they want you to back off to avoid the high pressure damage.
Yup
One time I put way too much in and the AC wouldn’t work when it was hot outside. So I released some refrigerant a little at a time from the low pressure side until the AC was blowing cold. I thought for sure I blew up the compressor but it worked good for years.
An honest and informative mechanic. A rare breed that we need more of! Thanks Scotty as always.
I love that he sounds like a raving lunatic when he does his videos holds my attention way better than the other boring guys
Those Airborne guys...
Side effect of watching too much TV as a kid
😂😂😂
@NATALIA G Maybe you shouldn't. He isn't always right about the stuff he posts.
Mark of superior intellect that he doesn't sound "normal" Big trouble now in the USA because we cater to the "much less than intellectual" crowd. No on really knows what is happening.
Man I’m sure I missed this give away but I’m telling you Scott. You are a life saver when it comes to knowing what I can and can’t do myself. I’ve always considered myself a good mechanic that can do all my own work myself. Watching your videos has humbled me and motivated me to learn all that I can the correct way so I am not cheating myself or others that I help. Thank you sir
Please, you're smarter than you're giving yourself to be.
@werockclimb, As a professional technician of many years, I have learned there is always something else to learn. The right information is always a good thing. Take care and all the best.
Finally, a professional video with professional instructions. Thank GOD for Scotty Kilmer. An honest man that is a PROFESSIONAL MECHANIC who KNOWS exactly how to repair an automobile the proper and correct way. Thank you SIR for kind heart by showing your viewer's how to perform this procedure. God Bee you and yours.
Me: AC’s blowin hot Scotty!
Scotty: well back in the day when I was ur age we had to walk to school uphill .. BOTH WAYS!
🤣😂
You mean you had legs to walk on? We had to pull ourselves!
@@janiejones6789 but In 3 feet of snow and only 1 shoe on
I think back in the day going both ways was the standard...hence the birth of the rainbow flag ...😁 Joking
Don’t forget that it was 10 miles (one way)!
That's like $300 worth of shop work. I'll stick to Wally world $5 recharge cans.
Yea, problem is; who's gonna invest in something you use only once in 16 years ?
@@guesswhomartin9249 you dont need to buy all that stuff, just the refrigerant. You can usually get the pump and gauges from an auto parts stores like oreillys or autozone who have a loaner tool program.
@@User69420blazeit ... Thank you.
you can literally rent those at autozone. if you top it off most likely you're going to ruin your ac compressor prematurely. same thing you do with your house a/c. don't want non condensables/moisture in your system. I did my friends and it only cost me like $40.
Yes, kiddies but paying attention is something you didnt do.
What is the one thing you dont have?
Any accurate way of measuring the freon going into the system without a scale and usually a 30lb can of freon to put on that scale for any real accuracy in this job. If guessing was okay then a lot of AC systems would not have failed within a month or two of loading these systems wrong.
If you po, then your ac no mo, you roll the windows down.
I’ll stick to paying $12 for the refrigerant every year rather than $300 to a mechanic.
lol facts
Every year? You need gaskets man. They’re like 5 bucks, and the hole in the ozone layer really doesn’t need the help.
@@chimayinasniffer what if it's leaking at the compressor clutch?
@@chimayinasniffer Dude - we switched to R134a some 30 years ago to stop ruining the Ozone Layer.
However the hand-wringers back then said it takes 50 YEARS for the R-12 to get up that high in the atmosphere and break down, so we STILL have Freon from car crashes in the '70's tearing up the Ozone.
I guess there's always a quick way and a right way to do a job obviously the quick way it's not the right way
This guy has an amazing future with mattress outlet commercials
Yeah he can make a 30 minute video out of something that can be told in 30 seconds, but I guess some like the full story instead of what's imporant
That guy is an American Treasure and a well deserved wealthy man.
@@peteleoni9665 LMAO
Or as Dennis Hopper’s stunt double
I almost give hope that this is the video that I see Scotty did not sweat, but closer to the ending disappoints me
You usually don't need to worry about both the high side and the low side unless you are recharging a system with no pressure. AC refill cans often work quite well!
They dont have a high side guage because thats wayy to many variables. IE opening the high side to the can & bursting it! Keeping it simple.
Thanks for the informative video, Scotty. I recently took my Honda in to my local mechanic shop. They use a machine that does it all automatically. They evacuated the system, cleaned out the system and added just over 1/2 pound of refrigerant. Cost me $80, but it was done correctly with low/high side gauges. After watching this video, I’m glad I took it in.
The shop is charging me $400 to do it for my 2020 Honda Civic in NY
@@Eltartaro_2050... If I were You, it would be..... "Exit.. Stage Left" as quickly as possible!!... they are Ripping you off, Big Time!!
I don't know if this applies to your situation, but...I found there's a difference between asking for the system to be recharged versus telling the shop/dealer that the A/C isn't working. If you want them to diagnose whether there's a problem with the system to find out if it needs more than a recharge, which is always possible, that's more like $400 -- $300 to diagnose and then $100 if it turns out it's just empty and they refill it.
@@johnhoffmann6904 Great idea! Instead of spending $45 and refilling it yourself, take it to a mechanic and ask him to charge you $400. LOL
I don't believe you. NO SHOP would charge just $80 for a full evac, "cleaning out the system" (whatever that is, which sounds bogus), and refilling with refrigerant. If you are being honest, then they probably didn't do hardly anything. Most shops and dealerships will charge you $90 just to replace your engine and cabin air filters, which costs them about $15 or less wholesale (combined) and takes less than 5 minutes to complete. So either they just replaced a fuse or squirted a quick shot of refrigerant in, or you recollection of what they charged is wrong.
Started out in the HVAC industry and everything there is honest and by the book. Keep doin what you do Scotty
Good video Scotty, but you left out something ? You forgot to hold the pressure to check. See if you have any leaking ac . Scotty, you are right that’s how you do it.💪
Scotty, we hope you live forever, what are we gonna do without your experience and knowledge... we need you man and our cars need u too.
One thing he didn't show is on a set of manifold gauges there is a bleeder valve that you're supposed to bleed air from the gauge/hoses before opening up the valve to charge the system. Other than that very good info as usual
Wow, didn't think about that 🤦🏽♂️
You saved me time from watching your video, hope you live forever so I can fix every problem I got with a vehicle
Wow,
Great job Scotty!!!
Thank you so much for taking your knowledge and sharing it with the world!!
A few years ago you took an Uber ride and my father-in-law was the driver. He had a great time with you and said you were a wonderful person. He suggested to go checkout you channel and I am so glad I did.
Keep up the awesome work. True automotive mechanics are becoming a rare find these days!!!
I don’t want the vacuum pump as I ran out of room for more tools. I do love your show and giving your knowledge out for free!
-Ben
Used my first can today during the 111° heat wave here in southern California. Worked perfectly!
Works now but it will die sooner than if you did it the right way hope you dont keep the car for more than 4 years
Hi Scott, sadly I am 1 year late for the contest but I am a shade tree mechanic to say the least. And I have watched almost all of if not all your videos. I appreciate your knowledge it has helped me to be a better mechanic. I don't do it for money I just work on my own stuff and maybe family members and friends. You have been a big help when I need to be precise on something that I'm not sure about. I truely hope you continue your channel
Scotty I been listening and watching you’re videos for about 3 years now and I learned a lot , I had an family member teach me the basics on general mechanic. But now with the new vehicles and new technology I relay on you’re videos to guide me on some light repairs or preventive maintenance. I want to thank you and keep up the good work and share the knowledge.
WOW, I did not know the a/c system was so complex. Thanks Scotty!
It's not complex. It's just that R12 is phased out and R134a isn't the best replacement. So you need to be careful.
Jhingur I still have a lot of r12, 30 and 50 lb jugs
jubjub247 it’s not used anymore unless someone has an old car that needed it or very old appliance.
Its not scotty just makes everything difficult
Its not. Anything thing is complex if you are ignorant of how it works.
this is so old school, I been used those $5 recharge can for over 10 years, never have any problems, :)
If you did you wouldn’t be here typing this. Survivorship bias.
@@davidgruen7423 its okay T T and David were all just tards on youtube
Its old school but it works. Question, has anything blown up or did ur compressor lock up yet? I need to replace the refrigerant in my 2013 fiesta cuz I'm sweating to death whenever I step in for less than 2 minutes
@@therandomizer9943 same with my 2013 f150
I use the ones he dont like because its fast cheep and my truck has 300k miles so i really dont have a problem with using the DIY cans
Just bought a can of AC Pro, everything worked great!
And when it's failing today you won't admit it will you
@@sbond1963 lol, I had a friend we kept using it when it is not cooling every week
@@taimank lol. I mentioned that because the cans have stop leak and a dye to find leaks. A professional AC repair shop might deny service because those two additives ruin their evacuation machines
@@sbond1963 good to know
Bondo no it doesnt! Thats sales tactic so people will quit using them an bring them in for replacement!
Scotty youre absolutely correct, and if you follow the procedure correctly a good ACmachine will also compensate for the refrigerant in the hoses to give you the best refill possible, but only after you vacuum the system to ensure theres no leak. thanks, pete
Love your channel Scotty!! I have fixed my car many times by watching your videos.
You also want to purge the yellow line of air before charging the unit or you will inject the air that was in the line into the system.
The yellow line is hooked up to the vacum pump, there can't be done more purging than that 😄
@@94valeRa01 You lose that purge in the yellow line when you disconnect the yellow line and reconnect it to the freon can.
Thank you for the information! As a non-mechanic I find your videos easy to follow and having sound advice.
I like how u not only explain to us why not to do it that way but you also showed the correct way to do it. Great video thank you m
Well you just stopped me from going to get a can. I was literally fixing to go buy a can for my wife's car. Thanks Enjoyed the video
Mark C if you know what you’re doing, it’s easy to do. Look up a proper video on how to do it. I’ve recharged my car three years ago and it’s still going great to this day.
Get a gauge manifold
I used can 4 years ago and AC still works good.
you are such an expert, I never get tired of listening to your wise advice, thank you for all you videos!!!!
I’m in Florida and I’ve always added Freon with the gage and never had a problem 🤷♂️
You weren’t paying close attention. He said it could ruin it if not “DONE CORRECTLY”.
I believe you can't get Freon R12 in most places without a license. Off the shelf cans are 134
@@surfernorm6360 idk about that kind of Freon both my cars take r134
I'm in California same do my self ACPRO and Autozone cans and no problem for 20 years.
I'm belive Scotty need
Medical HELP, he recomended some products and cars/trucks and late on desapointed.(wy) you have the answer NO MORE COMISSION is the reason
@@universalenergy2311 don't give any attention to someone who thinks a sample size of ONE means a dam thing in the big picture of product usability
I haven't had a problem till I got a chrsler town and country for my wife 2015. Now, I'm still having problems with it. Great teaching Scotty.
Nice video. Well done. Been an amateur auto restoration guy for 40 years. Wish TH-cam was around twenty five years ago.
Yep. A lotta " what could possibly go wrong" fubars in old "b.y" days..before you tube
Scotty has another video where he recommends using one of these DIY rechargers (a top 5 video). So do I use it or not Scotty?!
Toyota board room: We need someone to help refine our quality control procedures.
Scotty: Rev up your engines!!
Scotty, there is a trick with the A/C Recharge kit. You are concerned with "air & moisture" getting into the system. Connect the quick connect to the low side. Start screwing on the canister until it stops, don't puncture the can! Depress the trigger and back off the canaster until you hear a hissing sound. Then wait 4 seconds. With the trigger down, screw the can all the way on and puncture the can. You know what to do from here. I have a new vacuum pump. My air is now freezing cold.
Hey Scotty. Every single time I was your videos you explain them so well for people to understand. I'm amazed for all your help you have available for anyone to use. And most of all. Thank you for what you do.
Ok....you have to understand the real message here when recharging. The AC Pro works as it is used for LSP port...that means you have to charge the system without over loading the low side with too much pressure and refrigerant...think of it like those Soda Stream machines that will put CO2 into your water to make it fizzy. They caution you not over charge more than 4 pumps or you will find fizzy water all over the place....I know about this and you need to follow the directions. SAme with this way of charging your AC until...use the gauge and don't put more than you need as I will squeeze the trigger until the arrow is less than full.....this keep your unit from being overcharged and you don't have to deal with the HSP ( High Side |) issues of overcharging. Scotty is right...mess up that side of things and you got some real problems. If anything...charge 3/4 full as that is more than enough refrigerant to keep your system cool....as long as there are no leaks that is more than plenty to do the job so why try to put a full charge when 3/4 is the best way to go? It's not a gas tank where you "top it off"......
N iou
@@markfarnam7724 Get it wrong and you will be replacing the bits that exploded AND another charge!
Hi, my 2010 Mini Cooper aircon is blowing out warm air. If I buy one of these kits, will it regas and seal any potential leaks? Thanks, never done this before!
Tania H Buy the kit with the sealant and it might. Depends on how bad the leak is.
Idk man I love scotty but I have used these things for years and worked great everytime and its simple
I really like Scotty's delivery on any car subject. He's a no non-sense guy that is gets to the point on everything and doesn't waste time taking a bolt or nut off allllllllll the waaaaaay. Out of all the video guys out there who Im sure are good themeselves Scotty is number 1 for me. Besides, he has a real cool opening...Rev your engines!
Yet on one of his videos, Scotty says it's bad to rev your engine. What a hypocrite.
Yet half of what he says is nonsense
Yet😂
It's so refreshing to know that there's soneone out there that tells it straight forward no matter what subject Scotty is doing. THANKS SCOTTY
I am quite impressed by how the a/c system works, This is something id like to get into when I can get the equipment.
Thanks Scotty! Great video
It's not very hard to do or learn to do.
Happy Memorial Day Scotty, thanks for your service. I'm U.S. Navy (Ret.)
I just bought those Yellow Jacket gauges and hoses to do my house AC. Thank goodness for TH-cam and instructional videos.
How about shutting the valves and waiting 30 minutes to 1 hour after you've drawn a vacuum to see if you lose vacuum? If so, you have to find the leak before recharging or it will just leak out again.
when you pulled vacuum, you left out one detail. leave set for10 or 20 minutes to see if there's vacuum loss, aka a leak. other than that spot on. nice job
Was going to say the same thing. Did just that the last time I had to pull a vacuum.
The glass bubble window on old car ac systems is called a (see-all) or sight glass. filling from the low side is fine with even the cheap gauges. 134a is pretty forgiving. I have tested it against real gauges vs the ones on the fill cans. pretty close results, nothing to worry about. also just hold the valve open to remove air in the fill tube before filling for a second or 2. so no additional air goes into the system.
Okay what valve are we talking about? The low side pressure?
@@Littlemsambitious Yes, Low, as that's what you're filling.
@@Littlemsambitious The low side valve is a basic Schrader valve pretty much the same as what's used on most car/bicycle tires. If I understand him correctly, he's saying depress the pin in the valve for 1-2 secs to bleed the air out of the fill tube. Hope I haven't misled you..
Depress the valve on the low side tube or the AC can fill tube ?
Scotty, you are the man! My wife has been hounding me to fix the a/c in her car!
Im glad your available on TH-cam. You are the smartest moat efficient car mechanic on the planet!
I've studied HVAC in college, and you're right about everything! Anyway here's my favorite part: 5:05
I think that's pretty much EVERYBODY'S favorite part LOL
I love the sound of a vacuum pump
in the industry we call that vacuum a "pig" that's why he put that on there, lol
I've learned more from your videos than I ever learned from Chilton's manuals. THANKS!
Sorry dude but I have used this a number of times and it has worked very well.
I don't think he is is saying the self recharge cans don't work. clearly they do. I believe he is saying its easy to over charge the system and cause damage. if you are careful the cane are a good tool.
@@evilokc thats why once you get to green line...stop. Less is better here.
@@carlhammill5774 - But that's just it, people get to the green line and it's still not cold so they figure, well keep going!! With variable compressors in modern cars the low side pressure means nothing in terms of indicating when a system is "full".
Thats why you make sure your car is running with ac is on. That way everything is open and you get your reading for both sides. You see i think scotty is wrong about how he is explaining the situation.
To use a two-gauge manifold with the cheap cans, you need a special can piercing valve. Definitely want to purge any air out of the hoses, and use a scale. Moisture is very destructive!
I wish I had seen this video yesterday. The tempurature was close to 90 yesterday in Minneapolis & the shop I went to said I could make an appointment for Tuesday. So I bought the small can & then a hose to attach to the low side. I am getting cool air, but cold. So I will indeed go to a shop to have it done right.
I love Scotty's videos! I watch every one, not only for the quality information but also for the entertainment factor. Keep it up Scotty!!! And thank you!
I’ve had good luck with artic freeze from Walmart. I know, I’ve been lucky so far and Scotty is doing it the right way. Thanks Scotty!
Lee,
Walmart refused to sell the refrigerant artic freeze in my neighborhood... says illegal in LA California.
@@peacebe2u480 that stuff is great. Want me to mail you a can. It stopped my small leak in my Jeep that no one could find. Great stuff. Peace and Love
I was just about to get into a similar project.. as always, no nonsense advice. Thanks Scotty.
Bravo, Scotty. You have probably saved my a/c system on a really great(as far as I am concerned) 2007 Grand Caravan. Another step closer to heaven for the inimitable SCOTTY!
As a heavy truck mechanic, he is 100% right. But I'm working on my truck at my house. I'm using the can like the rest of you. And I know better.
Thanks Scotty for the tip, I am a DIY on all my vehicles now I know what is needed to do it the right way
Thanks Scotty ! Im dealing with an AC problem right now ,I appreciate the heads up ,you really inform us.
Thanks Scotty!
I'm doing it the wrong way, because I already started, and the AC is blowing warmer than when I started.
I had hooked up the can without removing the safety tab, so I drained it out the low side port.
I could really use a vacuum pump.
Next you should make a video talking about how Renault and FCA merging is the absolute worst auto merge in the history of mankind
I heard that on the BBC last night.
good idea, thanks!
Is that Fiat (FCA) ??
I think Ford and Jaguar was pretty disastrous too.
Scotty Kilmer Anytime 👍🏼
Happy Memorial Day Scotty and thanks for trying to keep the masses safe as the weather starts to warm up this year
I just watched one of your vids the other day where you are saying how easy and cheaper it is to do this as long as it has the gauge. Now I see this vid saying don't.
I have used the R-134a cans as well, but Scotty is right about this. This is the right way to do a charge on your cars AC unit. We all have just been lucky that are system worked afterwards.
Same for millions of other people too. LOL
Used these on several cars over the years mine and other peoples cars also NEVER had any issues whatsoever.
Sounds great, but the reason the common person tries it themselves is because mechanics always go straight to “you need a new compressor” or some other $2000 job! I’ve been driving 43 years now and have never had a mechanic say it just needed to be filled!
Thats cause 99% of the time it does.
@@peterfranco6610 then 99% of the mechanics are taking advantage of people. According to your arbitrary percentage
He’s speaking to the rich part of town. I have to do it myself.
The multicolored hose thing is available to borrow from autozone locations if you just need to use it and give it back, you don't have to buy one
@@star-army I'm facing down a serious AC leak that needs fixing, and I'm gonna have to do it at some point so this is super helpful info. I didn't know they rented tools.
Its only about $150 for decent cheap vacuum pump and gauges. The damage those quick cans can cause will cost you a lot more than that.
Facts!!🤙🏻🤙🏻🤙🏻
LMFAO 🤣🤣🤣 FACTS!
Finally, someone explain and show the proper way it's done! I helped a guy, when I was a kid, in the early 80's was the last time I had contact with refrigerant filling, I do need to fill my car, the ac works, but just not that cold on really hot days, 2012 avenger!
Thanks!! I need to get my AC checked and this was extremely helpful!!!
Title: How to make an old Subaru really COOL.
(ring that bell)
Nice job. Been doing this for 30 years. Accurate
2 things:
1. Cars have a high pressure cut off and a pop off.
2. If you’ve been doing this 30 years and think he’s spot on, you just need to quit. You obviously don’t know exactly what you’re doing.
@@AnonyMous-jf4lc so just put 8 pounds in the system and don't worry about it. The pop off valve will take of it. That's real sound logic, you're clueless.
Reading comprehension and cognitive ability are obviously not your strong suits. This is why there are a ton of mechanics and next to zero actual technicians.
MX after 30 In ALL THE YEARS I have NEVER EVER SAW A HIGH PRESSURE CONTROL ON ANY CAR OT TRUCK, but good compressors do have a RELIEF VALVE & a LOW PRESSURE CONTROL,Cheeer🇺🇸🇺🇸🇺🇸🇺🇸
Charged my Sonoma pickup truck with this and it worked great! Had to charge it yearly like this. Never had a problem ever!
I have been using this stuff on my 1996 dodge truck for about 8 summers, still works. Just lucky, I guess.
Same. Oops 😂
@@GO-cz7cl I was so blissful until I started watching Kilmer's videos every day! lol
I don't do any of the work myself but this guy is hilarious to watch 😂👍.
SLAYER!! 🤘🤘
SLAYER RULES 🤘🤘🤘🤘
Was very helpful Scotty.
Saved lots of money taking your advice man. Stay on it.
AC tech here, in school we were taught that you shouldnt charge the low side of any system with vapor because it can cause the refrigerant to fractionate. I know this is the case for r410A but idk about that refrigerant you are using. I am still new in the trade and learning stuff
As far as getting air from the hose into the system, you're supposed to purge that out with refrigerant and vent it just a little to the atmosphere
Well, guess what, mister? If you're publicly admitting to it, you're going to EPA jail! Officer Treefern and Superintendent Cowfart are also going to fine you $500k!
Just kidding. That is how the EPA treats people that get caught doing commercial venting. We learn about it when we get HVAC certs.
R134A is the same stuff in computer duster and freeze spray. Nobody is going to jail. That little purge is extremely important as well. Oxygen and water vapor will make corrosive acids from the lubricant (same stuff as in brake fluid believe it or not) and the gas itself.
@@NobodyCaresALot i am HVAC certified and lines have to be purged. The venting to the air is when you dont recover the refrigerant when you open up the system for repair
So true! I tried self-servicing my 2006 BMW 750LI. Wrong move. It was way over-serviced and I was lucky that when I took it to the dealer I had not destroyed the system. I gladly pay the extra $ to get my car serviced right the first time.
This guy is the best . I would 100% trust him as my mechanic
MOST DEFINITELY! 100%👍👍👍👍👍👍👍