How To Pull A Vacuum On Your AC System And Recharge Your AC System

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The AC compressor decides to stop working. The following video gives a summary of the steps I did to pull a vacuum from your system to get rid of any moisture and air from your AC system. *** DONT FORGET TO PURGE AIR OUT OF THE YELLOW LINE* from what i hear, its kind of a big deal 😀
disclaimer please take these videos as informative and for what they are. Just a guy that likes Jeeps and helping people. I may miss things, skip a step you may typically do.. things like that. I’m not factory trained (unfortunately). I definitely appreciate your input in my videos so I can learn something new. It’s all about learning and growing.
**Don’t forget to rotate the refrigerant can as you are filling the system. Rotating the can back and forth between 12 and 3. **
Once that’s done, the system is recharged with R134.
Harbor freight has great AC manifold gauges. Autozone rental program has the vacuum pump - pay a deposit and return the tool. You get your deposit back.
AC manifold gauges
www.harborfreight.com/ac-r134...
Vacuum pump
m.autozone.com/tools-and-equi...
Instagram: justjeep_it
click here for my Amazon store - the products I use in my video can be found here:
www.amazon.com/shop/justjeepi...
You will find these videos entertaining and educational. Jeep.. since 1941. Follow my channel as I repair, restore, clean, fix, fix again, throw wrenches and, most importantly, show my love and dedication to the Jeep brand. Jeep..there’s only ONE. 🇺🇸
disclaimer please take these videos as informative and for what they are. Just a guy that likes Jeeps and helping people. I may miss things, skip a step you may typically do.. things like that. I’m not factory trained (unfortunately). I definitely appreciate your input in my videos so I can learn something new. It’s all about learning and growing.
Enjoy!

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23 май 2019

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Комментарии : 473

@tracysellman1562 2 года назад

30 year Master HVACR service tech here, I would like to point out a few things to anyone watching this. First, if you notice the red, yellow, and blue hoses that are screwed onto the manifold gauge set, his hoses are on backwards, the bent metal end goes toward the unit you are working on, these ends have service core depressors which should be removed for Automotive use allowing for free flow and no restrictions, the metal quick connects have manual service core depressors. The straight ends should be placed at your manifold gauge set these ends will not have service core depressors. Also most importantly when you pierce your R134a can and charge your yellow charge hose you need to purge the air out of that hose up by the manifold set, by just cracking the fitting slightly to release the air and a slight amount of freon( R134a) and then tighten it back up. This ensures that you now have nothing but R134a in your charge hose and are not pumping in air with your charge. The most accurate way to get an exact factory charge is to weigh in your freon charge with a digital scale, not all cans have the same amount of freon in them. So if your system says 1.3Lbs of R134a you convert that to ounces which is 20.8 oz. and weight that mount in. I always add a small amount to compensate for what is left in the hose and would charge to 20.9 Oz. But all in all this guy did pretty good, just remember moisture is our enemy, and ambient air has a lot of moisture. PS: the smoke you see coming off of the vacuum pump is moisture boiling off and being taken out of the system and removing it from the descent charge in the receiver/dryer, this is normal. :)

@JustJeep_It 2 года назад

Thanks for taking the time to share your knowledge. It’s all about sharing knowledge and helping each other! Thanks for watching too!!! Cheers!!!!

@67bradenlee 2 года назад

I have a question- when swapping between cans(my truck takes 36 oz so 3 cans) do I add the can, once empty, close off the low side at the gauges, attach second can, pierce, and bleed line, then open back up low side at gauge to continue filling the system? You didn’t show swapping cans in the video. And I don’t wanna do this wrong.

@tracysellman1562 2 года назад

@@67bradenlee YES that would be the correct way to do it using small cans.

@precisionbay6899 2 года назад

@@tracysellman1562 I just read your post, very nice. So is there a way to see how much existing freon is in a car that just needs to be "topped off"?

@AMoneyVideo 4 месяца назад

@@precisionbay6899 No. A recovery machine can weigh how much was in it but you can't reuse it if there was a leak. Moisture and air will have contaminated the recovered material. There is a sticker under the hood that says how much the system should have. Best way is to vacuum the system to empty then add in the correct weight. You can top off using the cheap low pressure gauge but even a single time can lead to degrading the ac system. Cold today busted tomorrow unless filled precisely with no leaks.

@viktorpiriyan8349 Год назад

Excellent job done. Very simple, clear and understandable. Wish there be more people like him who could explain in very simple easy understandable and visually presentable language. Thanks a lot.

@jakelowe164 3 года назад

Very efficient video. Just the right amount of information. Not too chatty and didn't leave me wondering anything. You the man

@JustJeep_It 3 года назад

Thanks a lot. This was one of my first videos so it’s kinda rough. But the info is good. Just a goofy delivery. Thanks for watching!! Glad I could help!

@rickyjames593 Год назад

I agree 💯 getting ready to buy the pump and guages and do a recharge on my magnum.

@vet6822 4 года назад

Last time i worked on a car a/c system was a 70s r-12 system. thanks for the update.

@Son_Of_Q 3 года назад

Good job on this video... thorough, clear & easy to follow w/ no complications. Nicely done, thank you

@JustJeep_It 2 года назад

Thanks a lot..I appreciate it!! Just trying to help folks and save you guys a little money!!

@ram457moreno Год назад

@Rawson Harmon hi from what i saw on line the pump will not suck out the oil only moisture . the oil is too heavy to suck out of the lines only moisture.

@jasonrodgers9063 2 года назад

THANKS for posting! I just performed this operation on my car (2004 Mercury Sable). I watched your video at least a dozen times, wrote down the steps so as to have them handy during the procedure. The equipment & freon set me back about $250 (I bought a 2-stage vacuum pump). My beloved wife passed away right at 5 years ago, I've let a LOT of "upkeep" of the infrastructure in my life just "slide". Decided it's time to get my ass in gear. Your procedure worked like a CHARM! Dropped my car vent output temps from 104 degrees to 41 degrees!! I am very grateful!!!

@JustJeep_It 2 года назад

Thanks a lot..I appreciate it!! Just trying to help folks and save you guys a little money!!

@raymondsmith6315 4 года назад

One of the easier to follow, step by step videos. Excellent.

@JustJeep_It 4 года назад

Raymond Smith thanks!! It’s a lot of steps so I tried to keep easy and clear. Enjoy!!!

@robwatkins4356 4 года назад

Awesome thank you. I always wonder how to do this. Thanks to you I understand. Great learning video

@JustJeep_It 4 года назад

Rob Watkins Thank you for your kind words! Glad it helped you get the job done. Save some money and diy!! Keep up the good work!

@lisbelalvarez2896 3 года назад

Very good thank you for the quick explanation and simplicity. I worked on a shop long ago and you did explain it all well and easy

@JustJeep_It 2 года назад

Thanks a lot..I appreciate it!! Just trying to help folks and save you guys a little money!!

@LetricShave 3 года назад

You forgot to purge your yellow hose of air and may have introduced air along with moisture into your system. If you think about it, when you remove your yellow hose from the vacuum pump, it is under a vacuum and as you unscrew from the pump, you may have sucked moist air into the hose. That really should be purged out before flowing your refrigerant into the system.

@axtonclonts2897 2 года назад

How are you supposed to purge it correctly without getting air back into the house when you hook it up again?

@johnscreekmark 2 года назад

@@axtonclonts2897 Pop the vacuum schrader valve at the gauges to release air in the yellow line. Let up when you see refrigerant come through.

@axtonclonts2897 2 года назад

Okay I’ve got a problem. My low side is reading 120-130 and high side is stuck on 0. What all could cause that or what is most likely

@stevenabbott4299 2 года назад

@@axtonclonts2897 are you sure you got your high side valve open so thst it will read on the meter

@isarob03 2 года назад

@@axtonclonts2897 You have a restriction/blockage in the system. Most likely in the orifice tube condensor or accumulator

@piedpiper8355 2 месяца назад

Just bought some of the items. Pretty much the cost has doubled.

@FergusLandscaping 2 года назад

I really like this video as you focus on operating the manifold gauges and hoses properly.

@jwgbmp40 Год назад

Thx bro.. hadnt done this in 20 yrs.. recently swapped motors on my ecoboost.. you helped me safely get the ac charged..

@scratch187 2 года назад

3 years late, but great video. Bought the equipment last year before the winter, and now I am ready to try it out, thanks to your video!

@JustJeep_It 2 года назад

Thanks a lot..I appreciate it!! Just trying to help folks and save you guys a little money!!

@insanitology 2 года назад

"Oh that's cold...oh ho ho ho hooooooyea." 😆 great video, thanks for the help!

@flysolo7714 2 года назад

best explanation on RU-vid 👌 thanks for the details. now I can do it myself.

@JustJeep_It 2 года назад

Thank you for the nice words. I’m glad this video was able to help you and save you a few bucks.

@richardmontano2701 Год назад

Thanks! I'm not too familiar with A/Cs besides regular freon fill. I never used the vacuum and the manifold and was always a little apprehensive about it. Seeing this mad me realize how easy it was. My AC lost all its pressure and I had to do this to get a good vacuum. I was able to find the leak, it was on the high side valve Thanks!

@binhvvu 2 года назад

I wish I can rank this higher. You explain the process very well and to the point. The free Autozone vacuum rental is priceless. Common DIYers dont have these specialized tools. The vacuumn pressure hold to detect leak detectio

@JustJeep_It 2 года назад

Thanks a lot..I appreciate it!! Just trying to help folks and save you guys a little money!!

@lisavalaitis8266 4 года назад

Awesome video. Thanks for the information!!! Easy to follow!!!

@JustJeep_It 2 года назад

Thanks a lot..I appreciate it!! Just trying to help folks and save you guys a little money!!

@ottostigs7602 3 года назад

Thank you for taking the time to teach us! Awesome attention to detail 👏👌🙌

@butchcollman5953 3 года назад

Thanks a Million ..I am confident I will be able to get mine done after watching your video

@JustJeep_It 3 года назад

That’s awesome!!! I hope it all works out for you. Glad you found this info helpful!!!! Keep me posted.

@ab-zo4su Год назад

Good presentation, enjoyed watching. Everything is spot on except that while charging the system, the recharge (yellow) hose was not purged of the trapped air. The manifold connector for the yellow hose had to be loosened a bit until you could see freon oozing out.

@cafesami9356 10 месяцев назад

Good job. To the point, informative, clear, and easy to follow.

@fredthe52 Год назад

Excellent good job. Very simple, clear and understandable and good view close up.

@qwertyuiop3455 2 года назад

Good demonstration. Will be a good reference for those new to dual gauges.

@JustJeep_It 2 года назад

Thanks a lot..I appreciate it!! Just trying to help folks and save you guys a little money!!

@rickbale1 9 месяцев назад

Great video. So easy to follow and very informative. Just one thing; You should purge the refrigerant line from the charge can to the manifold to remove the air. Otherwise, it is pushed into the system.

@parrishhenderson6492 4 года назад

Good of explaining step by step on how to pull a vacuum on the ac system

@JustJeep_It 4 года назад

Thanks. I’m not an expert but after some good research, this is how I accomplished the task. Glad to help you!

@woodybear8298 2 года назад

Great video. Explained what valves to open and close very well.

@JustJeep_It 2 года назад

Thanks a lot..I appreciate it!! Just trying to help folks and save you guys a little money!!

@carlosgaray3433 3 года назад

Awesome video . Nice voice easy to understand. Well done thank you .

@josephgarcia3767 2 года назад

Awesome video. Appreciate your explanation of this process. I've got a 1992 camry LE 4-cylinder not sure what type refrigerant it'll take.

@MAHGlie 2 года назад

Appreciate the video. Our local shops are so backed up they can't get anyone in for a couple of weeks. Going to DIY.

@JustJeep_It 2 года назад

Glad to help. Good luck!!!

@4nciite 2 года назад

One thing I loved about my old Dodge Neon was that it had the exact same ac system as the Caravan so it took 2.8lbs of freon, I always rounded it up to 3lbs even and it would get so cold little pieces of ice would fly out of the vents and after a few minutes I would to turn it down to medium and this is on a 112 degree day in Tucson, aside from being a quick little car it wasn't that great but man the AC is still the gold standard for me and I have literally driven every car made at the auto auction.

@JustJeep_It 2 года назад

Nothing beats ice cold AC on a hot day!!!!!

@tazaxx21 Год назад

Great video. Easy to understand.. no rocket science, just make it work!

@JustJeep_It Год назад

Thank you. Glad the video was useful to you.

@eusoj50 3 года назад

Man you rock! I needed to refill my car after doing a bunch of work on it. I was about to buy one of these pumps and had no clue that Autozone rents them out. Thanks for the video! I'm going to rent one early tomorrow.

@JustJeep_It 3 года назад

Glad I could help. It's a lot of little steps but I'm glad this was helpful to you!!!!

@digger105337 2 года назад

They also have gauges and a flush canister if you have compressor that grenaded.

@digger105337 2 года назад

ORielly does it too. No rental fee, just deposit when you take it and you get it back upon return. They also have gauges and a flush canister if you need.

@bananapuffcream1 3 года назад

For anyone watching thats planning to do this, this is a good video but there’s a few steps to add. 1. Once you have the can attached to the yellow line and the can is punctured, bleed the yellow line at the manifold to purge the air out. That way you only get refrigerant and not air. 2. Keep the can upside down so the liquid refrigerant gets sucked in. 3. Not so much a step but a tip. If you are recharging your system and didn’t replace a major component like a compressor, condenser( where you pre-oiled before installing), etc., you can pour the oil into the yellow line, then attach the can so it sucks in the oil as well as the refrigerant.

@wolfgangdallmann943 3 года назад

How do you bleed the yellow line when you put oil in there or do you fill it up with oil and this takes the air out? I'm not sure how much oil is needed for my 1960 Oldsmobile.

@xSO20 2 года назад

What kind of oil is used in the AC?

@JustJeep_It 2 года назад

Pag46 is what I got from the guy at Autozone.

@fleadoggreen9062 2 года назад

How do you bleed the line at the manifold

@TheKeymaster316 2 года назад

@@fleadoggreen9062 once he punctures the can and the freon is free to come out, before opening up the low side to start allowing refrigerant into the system, loosen the other end of the yellow line where it connects to the gauges. At first, just air will whistle out but eventually you will see refrigerant come out. Be sure to were gloves for protection as you can get burns on your hands from the refrigerant. Tighten the line and you should be good to go.

@Otmkendoodoo 3 года назад

Best video by far showed everything there was to know👌🏾

@JustJeep_It 2 года назад

Thank you. Glad you found it helpful.

@1SFOD Год назад

Outstanding tutorial! Thank you!

@stevenbartels969 11 месяцев назад

Excellent video! Made my AC system servicing a lot easier

@dansportdr123 3 года назад

Great video, just used this to plan recharging after replacing 2014 Silverado notorious condenser. Not quite sure how to add the PAG oil though.

@JustJeep_It 2 года назад

Thanks a lot..I appreciate it!! Just trying to help folks and save you guys a little money!!

@t-money5036 Год назад

Thanks for taking the time to put this together. Very informative and straightforward - easy to duplicate. Excellent job!

@BITEBOC Год назад

Thank you so much for your video. I was able to replace my compressor, accumulator, a busted line, evacuate and recharge the system. No I have have cold air flowing again.

@davidfrank9997 2 года назад

Hey, great presentation, your easy to watch, and listen to. I have watched alot of these videos, I have some experience with home HVAC. #1 I agree w/ a previous comment, purge yellow hose with refrigerant before you send to system by cracking hose at gauge before opening low side. #2 mechanics on this subject have said oil 9n compressor is "shipping oil", the right stuff, but almost a flush for any contaminants from factory, it's a 15 min job, so I hope it's worth it, I did it, you have to turn clutch by hand to get all oil out....if anything you know the compressor is fully lubed when you fire it up. Not criticism, just alternative opinions I've seen, and sharing. Like I said awesome presentation 5 star in info Thank you

@sweeptheleg6852 2 года назад

Exactly. Always check oil level. The "pre-oiled" compressor I just received yesterday only had 1.5 ounces of oil in it.

@JustJeep_It 2 года назад

@@sweeptheleg6852 Very good point....Thanks for the contribution...

@JustJeep_It 2 года назад

Thanks a lot..I appreciate it!! Just trying to help folks and save you guys a little money!!

@peteygnyc 2 года назад

If you replace the condenser and all refrigerant escaped (through pressure- bad I know), do you still need oil? If so, how much? I know it varies from car to car and compressor to compressor, but if the system had a violent leak and the entire condenser was replaced (only the condenser), how do you gauge how much PAG oil to put back in? The full amount?

@anthonyhicks1354 3 года назад

How do I know how much pag oil is removed when vacuuming?

@mycatsaliberal3848 Год назад

The red or high side isn’t connected to the yellow hose at all. It’s only used for diagnostic purposes. It serves zero purposes for recharging. Only thing you could possibly get from hooking it up to recharge your system is maybe make the valve start leaking. So if your just recharging your system do not hook up the red hose.

@Mike_44 10 месяцев назад

Hi Joe, I'm doing this for the first time, I want to learn to service my cars on my own. Do I have to evacuate the system if I'm replacing a compressor? Or just replace the compressor and pull a vacuum later? Also, how do I know if I need to put oil in the system so the compressor is properly lubricated? Thank you for this video by the way!

@timwoods6772 2 года назад

So, after replacing the compressor with a remanufactured, vacuum checked the system, I didn’t read everything I should have here and I believe I did everything right… up to the point of NOT BLEEDING my lines before opening the valve on the 134a and now my gauges show 40 on low side gauge and 200 on high side gauge and the system is not blowing cold air! Could have used that information in the video… critical piece of information… so I guess it’s back to the total evacuation of the system and start the purchase and process all over again. Any suggestions on being able to avoid starting all over?

@GustavoSantos-ep5jx 2 года назад

I'm doing an ac condenser on my 2002 grand cherokee inline 6 so this was very very helpful

@JustJeep_It 2 года назад

Thanks a lot..I appreciate it!! Just trying to help folks and save you guys a little money!!

@ram457moreno Год назад

hi after looking at your video i am going to follow your steps I replaced the ac line the high side and now have to put a vacum to it. I did not add peg oil since i did that one year ago into the condenser hope my repair line is done right and no leaks . I was going to take it to the shop they want 400. to do the vacuum on it and recharge the line. i order the gauges AND Pump

@guillermo1953 2 года назад

Excellent video and good explanation 👍👍👍👍👍👍

@JustJeep_It 2 года назад

Awesome!!!! Thank you!!!!!

@lenny.mkhari985 Год назад

Helo. Thanks for explanation. One question: Is the vacuum same as one we use to pump tyres?

@alfredoverno9674 2 года назад

Hello friend. Great vid. I just wanna know, after the system is pressured, what is the process to disconnect everything. The low pressure was still opened and the can was connected. Please and thank you

@jeffstone7912 4 года назад

Thanks for the great video.

@JustJeep_It 4 года назад

Jeff Stone thank you very much!! Glad I could help!!

@dwayne2031 3 года назад

If my car required 24oz of refrigerant and 3oz pag oil. Would that be 27oz total or do i only put 21oz of refrigerant and 3oz oil. Also, I have changed the condesor. By changing the condendor, did i lose all of the oil in the compressor? Do i need to add pag oil after changing the condensor?

@khamtp42 4 года назад

thank you for great video you explain step by step now i know how to work on car ac now . i watch the another people video i do not understand until i watch you video. love the video

@JustJeep_It 4 года назад

Thank you for the kind words. Glad I could help you

@shotguncamaro1214 2 года назад

Good job, the only thing wrong with this , is you did NOT bleed the yellow line BEFORE you put R134a in the system. That means that after you vacuumed it. the yellow hose is full of air. It went right straight into the system BEFORE the R134a went in . It now has air in the system.

@JustJeep_It 2 года назад

Yeah..I get that a lot..But it fortunately didn't effect things too much..now long term..maybe. But for the time I had it, no issues..

@UpcomingJedi 4 года назад

Aside from not purging the yellow hose, how did you determine how much refrigerant from the 2nd or 3rd can you put in to comply with the maximum charge listed on the sticker?

@timothysimpson912 2 года назад

You can google it but for his Jeep and my two just like it, it’s 20 oz. I have a scale for the second can. Love Joes videos and replaced evap with everything else but compressor. Vacuum and Charge today.

@subkommander9007 Год назад

Thanks Joe!!!..when I win power ball or my roadside service business doing well you WILL be invited on expense trip with me and all RU-vid mechanics and techs that have taught me something!! Excellent video and instructions

@ricardoorozco8311 Год назад

Like the explanation and the visual but aren’t you supposed to have everything on full blast like max cold air, max AC, max fan and recirculating on? Because you didn’t have the recirculating in nor the fan till after Freon was being added and how do you know when to add the second can? Thank you.

@frkalo2008 Месяц назад

Finally someone who explains things step by step !!!

@aaronautry1981 3 года назад

I bought the manifold gauge from hf and all the refrigerant and adapter from az. You can get it from O'Reilly also. That must be a special vacuum pump because it looks and sounds just like a tire inflator 😆

@stentonmcintyre5753 Месяц назад

Nice video. Thanks

@dgoldman2846 4 года назад

great video! Thanks!

@JustJeep_It 4 года назад

D GOldman thank you!!! Much appreciated

@pastovasquez1858 4 года назад

Tank you well explain. God bless

@justnick87 2 года назад

This is the best video i have seen explaining how to safely and properly use a vacuum pump and fill using gauges. This should be the only video allowed on RU-vid for this service.

@JustJeep_It 2 года назад

Thanks a lot..I appreciate it!! Just trying to help folks and save you guys a little money!!

@terryeaster1 3 года назад

Outstanding job

@JustJeep_It 3 года назад

Thank you. I’m glad this helped you!!! Cheers.

@backhoe Год назад

Best video I have seen yet thank you.

@JustJeep_It Год назад

Thank you. It’s not my best work for sure but the AC on this a Jeep was ice cold. 🥶

@gusserth936 4 года назад

RU-vid certified 😂😂😂!!! Good video! 👍

@JustJeep_It 4 года назад

Haha. That’s me for sure!

@edwinrodriguez4576 3 года назад

😆😆

@mk3249 4 года назад

Thanks for the video, my vechicle need a few cans, what do I need to do before unscrewing the old can and putting on a new can

@jonathanmurray2186 4 года назад

You have to close the valve on the manifold. Unscrew the can and then add a new one. He missed that you need to purge the yellow line each time. Otherwise you’re pulling in air that is in the line. And on a humid day that will be a good bit of moisture.

@Dadstin 2 года назад

@@jonathanmurray2186 thank you

@johnsteward132 3 года назад

Great video. Good job outta you!!!

@JustJeep_It 3 года назад

Thanks. I try. Just want to help people and save a little money.

@gabinoflores8267 3 года назад

Very good video buddy excelente job

@JustJeep_It 2 года назад

Thanks a lot..I appreciate it!! Just trying to help folks and save you guys a little money!!

@kennethvalencia8196 4 года назад

JOE, Now you forgot to purge the line before adding the refrigerant to the system to purge the line just listen the yellow hose by the manifold gauge just crack it open,i ok till a little bit of refrigerant comes out, once a must or some such is very little comes out your good tighten the yellow line and your good to go yes that will keep any moisture out of the system THANK YOU KEN VALENCIA

@JustJeep_It 4 года назад

Thanks for the details. I’ll try that next time. I have to charge another ac system. I’ll try it.

@fandechavalones3022 2 года назад

1:39 i love harbour freight its nice quality and acurate.

@inwardboy 2 года назад

So to disconnect the hoses from the ac lines, close the valves Ac running?

@Dev_Everything 10 месяцев назад

What does it mean when you start pulling a vacuum and it start at +10psi. I replaced my condenser/pump/drier so I would expect to start out a 0. After 30 minutes its now sitting at 0. High and low sides are open as well as the yellow going to the new robinair vacuum pump. Are my snapon (old) guages reading wrong? Is there another condition that would cause this?

@YB-eg3rj 3 года назад

Did you purge out the air from your line before filling up? 🤔 no micron gauge?

@joehiatt1992 11 месяцев назад

Do u have to draw a vacuum if ur just topping off like those 1 step recharge cans w/gauge they sell at auto stores?

@ram457moreno Год назад

i follow your sets and got my ac working . was nice and cold till later after letting it sit for 3 hrs. my ac condenser got a leak was not leaking hold vacuum .... i replaced the ac condenser 4 years ago and now it got a leak. i have two of my Nissan trucks d21 the other one got a leak in the same spot. I am thinking its poor cheap design. so now i have to look for another one for both of my trucks I had already order one for the first truck, but it can bent . but when i got my ac working again it was nice and cold. thank you for your steps. not hard at all ... now i will have to do this repair cause of he leak , I have one question can pressure make a pin hole on the condenser.

@gordon295 2 года назад

Nice One !!! Thank you very much. :)

@dannymartinez8314 3 года назад

Yes I like the way you think, i think that way as well, it so hard to give someone money and trust, that they even did any work or did it right, educate oneself, and leave your money in your pocket, and know it was done right, by doing it yourself. So I didn't see no one asking, but how much does it cost to take it to a AC shop to have the system evacuated?

@SPAZWIK82 3 года назад

I called around and 2nd place I called does it for free

@dannymartinez8314 3 года назад

@@SPAZWIK82 so how much was the first place wanting to charge?

@alfierose 3 года назад

Awesome video. Very informative. I am starting this process as well (2002 Jeep Liberty Sport). When i was using my 3 CFM 1/4HP Air Vacuum Pump i noticed that there was a cap with a sticker on it that said to REMOVE EXHAUST CAP before operating. Is this very important? Asking because in every 3 CFM 1/4HP Air Vacuum Pump video so far, no one has removed the cap when operating the pump, :(

@jonathonwilliams2806 2 года назад

Yes this is what exhausts the moisture and whatever else out the system

@angelcedeno26 3 года назад

Can you pull a vacuum with the other gauges,similar to the one's in the video but they don't have the negative readings like the 10,20,30 on the right side of the nunber 0?

@JustJeep_It 3 года назад

I’m not familiar with that but as long as the gauges are for automotive use, you should be good.

@winkawak 2 года назад

Hi i f i have new problem now, it took almost 2 can but low pressure reading didnt change much while high pressure side reading went from 200-350psi. I stopped and unplugged everything then i noticed low pressure cord end attached to coupler its inner sleeve is ripped, can it cause my reading to be the same? what could be the problem?

@JonPagel 2 года назад

Do you have a video replacing the AC compressor, orifice, and drier/accumulator? I thought you need to vacuum the refrigerant before replacing those?

@bosanovaboy Год назад

Excellent video

@Superkaioken87 Год назад

Thanks for video easy to under stand. 1 thing I did learn is before you introduce the freon to the system hit that Schrader valve to fill the yellow hose with freon cause there is some air in line and you want no air at all

@luke2042 Год назад

Great video! Thank you

@JustJeep_It Год назад

Glad you liked it!

@thomremington27 3 года назад

correct me if I'm WRONG...but.. did you say when CHARGING with freon, the BLUE VALVE (low pressure), is to be OPEN on BOTH ENDS. and the RED VALVE (high pressure) is to be open on the COMPRESSOR END?

@mrmorgan5003 Год назад

My question is once you turn the manifold off dosent it close the system there for how do you really know if its holding a vacuum with the blue knob turned off ? May be a dumb question but im willing to learn i get everything else on how to do it i pull a Vacuum turn the knob off but how does the gauge still read with the knob off ?

@Caderic 2 года назад

I have that same set of gauges. What is the schrader valve for on the service/yellow line?

@scottbulach 2 года назад

When you hook your can up leave the low pressure side closed and use a screwdriver and purge the line to let the air out then open your blue valve.

@davidandlaurablevins68 2 года назад

Did you turn the can upside down and put the freon in as a liquid?

@gonzaf250 Год назад

So I decide to do a diy and never contained the Freon and we’ll I had to replace the compressor and when I took off the ports bolt off, and the Freon went everywhere 😢. Can I just install the new one and connect it and turn it on like normal?

@RaySmith66 3 года назад

great video

@smnnjr4378 Год назад

Really liked this video. Very simple & to the point on most parts. The only thing is that the way I have learned it, making sense, was to purge the yellow line with opening the yellow valve core there to let the air out WHILE ALSO turning the can UPSIDE DOWN while shaking it at the same time so the freon can be ready to come out 1st & the whole can empties completely. Then stop pressing valve once you start seeing freon sprinkling out the valve. Noticing that the can will start getting cold while you're shaking it & it's draining through. But for sure this video was great man. I've used it several times to go back & remember what to do next at certain points of the process. Thank you 👍