Awesome! Thanks for watching!

​@@2carprosnmnbn me me 0:07 04 😊😊vcc cjh😅 so 0:07 😊😊😊😅😅

Using my manifold set- I'm recharging through the low Port ONLY- the low Port coupling is obviously open. My question is-your highport coupling is open so this way you can READ the pressure on the manifold gauge... The High valve on the manifold gauge NEEDS to be closed...BUT the coupling on the high side is OPEN for reading on the manifold gauge? Is that last part correct??

Close the high side when recharging. The high side is only for vacuuming and diagnosing.

@@coyoteserranoband Yes, follow what he did in the video. Close the big red knob before connecting the refrigerant in fact, close both knobs ( blue and Red low|high ) before connecting the yellow service line to the refrigerant. open the blue knob after you bleed the yellow line of air and open that knob only at the manifold and very slowly.

NICE! Thanks for watching!

I know these are older comments, but I’m going to throw this out there anyway, just be careful , I killed the compressor in a freight liner, that cost goes way up when it gets screwed up and your buying parts and not just cans of liquid. I recommend you plan out a step by step procedure and follow it carefully and try to limit distractions while you preform the job. If I would have done something like that I wouldn’t have had to buy that compressor. Good luck my friend.

Glad I could help!

​@@2carprosGreetings. I mean the way he explains it means it works? What vacuum pump do you use so I can buy it too?

I'm sorry for your loss. I'm very impressed you are a self taught badass! Thanks for watching!

@@2carpros thanks so much!

NO WAY IM IN THAT SITUATION RIGHT NOW. I live in Houston, AC system went out, only one window works and car is black... Will be attempting to fix it myself.

Thanks so much for watching Adam!

Yes indeed! R410A but it's actually the same exact connector as the old r12

@@SMOKEY-JAYS-DIESELIt’s for ALL applications other than automotive, and is not specific to ANY refrigerant. It’s a 1/4” Flare fitting. The collet QD fittings are ONLY used on newer automotive systems.

Yeah that definitely helped me out. I was wondering why mine didn’t fit the bigger one😂. This is still a great video and helped a lot.

Shut up

Did you refill from a keg?

@@LandenBMS I did not, my system used about 4 12oz cans of Super Tech 134a refrigerant I got at Walmart along with a can or two of AC refrigerant oil from the same source.

​@@gmarkochon

Glad it helped!

A

Great job!

Very very cool! Thank you for watching John!

Wow, thanks! I try to do my very best, your words are very kind!

Nice work! Thanks for watching!

Wow, thank you!

@@2carpros it's been few decades since I have performed this and your video was the perfect refresher course for me..thanks!

Absolutely has, I'm sure. From gulf coast, SE Tx here as well. Much needed and Many thanks.

Wow, thanks!

Shouldn’t you be measuring the weight of the tank for the proper amount of refrigerant to add?

Close off valve that's connected at vehicles port purge air out by opening how he did at the beginning of his connection of the big refrigerant

Ideally where you connect at the can there is a valve there that you can close before switching cans and that will prevent air from entering.

Great to hear!

Glad you liked it!

@@2carpros going to get my AC vacuumed out does vacuuming your AC system pull the oil from the compressor

Glad it helped! Thanks for watching!

Nice work!

Just seen this comment, make sense now

just had a coworker arguing that you have to use the High side while recharging. I told him to get bent.

7

B

Old-timer here.Decades of MX/Engineering in Aerospace. You're the REAL DEAL, Ryan. You're an excellent educator. You emphasize the danger points well. People DEFINITELY need to hear those safety points over and over. Thanks for another excellent video and keep up the great work, young man.

Great to hear Ron! Thanks for watching!

Happy to help! Thanks for watching!

Awesome, thank you!

Thanks so much for watching!

I'm having the same problem. It seems like shops are doing this to prevent DIYers from bypassing them to work on their own vehicle. They basically charge you for a full evacuation and recharge just to remove it so you don't save any money....

Great to hear!

I'm really glad you watched this video then. Thanks for watching!

Why will this be important, to me that's very confusing doesn't mean anything or it's just knowledge

@@analazcano6475 Because when you pull vacuum and your at say 5000 feet you won't see the gauge go to 30in.

THIS! I have been searching for this info- my beat-up auto zone loner vacuum had me thinking something was wrong because I could only pull 21 inches hg. But I’m at 6300 ft elevation.

Thank you so much for watching and for understanding what I mean.

Very cool! Thanks for watching Dave!

@@2carpros Was that pun intended??

No but I'm happy it's there now. Thanks for watching!

Nice! Thanks for watching!

Wow, thank you for watching and thank you for your service to our great nation! :)

@@2carpros Unfortunately, even though your video is great, things did NOT go according to your video. :( I have a 2002 gmc sierra 1500hd w/6 liter. i was in the process of replacing my compressor which was bad. I installed a new compressor, new condenser, new accumulator drier, replaced the low and high pressure switches on the accumulator and the back of the compressor. I followed your video to the letter, including NOT opening the high-side manifold gauge. I ran vacuum tests for 30 minutes, waited 10 minutes, and perfect -- no leaks! So I proceeded to load freon, and the same thing happened the last two days: within 30 seconds after beginning to add freon, the high pressure switch on the back of the compressor blew out! I assumed it happened yesterday because I had not properly installed the split ring to hold the high-pressure switch in place, so I carefully checked to ensure the split ring was installed properly. Today, the same thing happened again -- within 30 seconds there was a loud hissing, then a 'pop', and the high pressure switch had blown out again. Can you tell me why this happened, and what I can do to correct this and ensure it does not happen again? Semper Fidelis! CWO4 USMCR [Ret] 17 February 1969 - 1 August 2004

@@GunnersRange Did you get it to work?

Thanks, will do!

Awesome, thank you!

True! Thanks for watching!

I agree as the gauge set I have works this way but I imagine on their part it has more to do with safety. Most out there dealing with HVAC systems don't have a clue. Best 99% of people don't mess with the high side valve.

I also agree. I would open the high side as well when evacuating the system. Other videos do that so this. But when filling would have high side closed.

Hey there, when pulling a vacuum on a system, it means to remove air or moisture out of the system. As you can imagine, air and moisture exist in a "vapor" state. The Low side of the system is vapor only, while the high side of the system is liquid only. Therefore, you don't have a need to open the high side if you're not working with the high side. Hope this helped!

@@CipherVillain Well that would be true if you have a working system but if it has lost it's liquid or integrity pulling vacuum on both sides make the most sense. Correct me if I'm incorrect here.

@@curiosity2314 you're absolutely right, it is good to pull if for both! I was just referring to having both sides of the gauge ports open while pulling on suction. You can use the high side to monitor refrigerant while pulling low side just not both at the same time. My bad if all I did was just confused people😅 I just noticed Shamway had it right--

Thank God for the 5th Amendment!

The gauge is between the manifold valve and the vehicle. Closing it represents the pressure on the system, not the hoses.

Great to hear!

Great suggestion!

@@2carproslooking forward to a video like that as well. Using a 2003 GMC 2500 4dr would be a bonus…if you can find one with (typical) problems. 👍👍

Some people learn better in video form, I always did. Thanks for watching!

That should have been self explanatory when he said to close the valve after pulling vacuum and wait and watch the gauge to see if there is a leak. If the gauge went through the valve there would be no way to know there was a leak in the system after closing the valve.

i see another guys video say that vaccuming out system like he does not lose oil only when u flush it but i was wondering for sure the same thing

i see another guys video say that vaccuming out system like he does not lose oil only when u flush it but i was wondering for sure the same thing

@@zacinnc78 - this is correct. This isn’t like a carpet vacuum; an A/C vacuum generally just removes the air and minor impurities like moisture particulate.

Great to hear!

Do you think they did it wrong and charged me the 20 bucks anyways?! That would be a twist. Thanks for watching!

@@2carpros 😆 pro moves

$20? Cheapest I founded was $50.

All I know is mine is right. Thanks for watching!

@2carpros isn't wrong about they process, but it's not the only way. If you follow the steps in this video, you will be ok. But, he is completely wrong about his aerosol logic. Hairspray and A/C do not get cold for the same reasons... at all. Hairspray (and most other aerosols) feel cold on the skin from the process of Evaporation on your skin, after the atomized mist falls out of suspension... Not the pressure change from leaving the can. It's actually the can that loses heat in that process. Remember... Water from a hose feels cold when it's misted over you & it's not high pressure. It's the extremely small size of the droplets, they can't hold heat. Recap: liquid atomized into a fine mist - rapidly loses heat. That Mist falls out of suspension (lands on you) & turns to a thin layer of liquid on the skin - the evaporation process begins. Additionally, the air going across that thin layer of moisture also removes heat - The cold feeling on your skin. This is why we sweat, not how our ac system works.

@@NemonicsRacing this is 9 months old and I'm not even really watching his thing but... While you're absolutely correct about the evaporation of the things leaving an aerosol can, landing on your skin and then evaporating.... A can contains pressurized gas. Sometimes it's even pressurized enough to be liquid within the can. When you expel those out to the atmospheric temperatures that can itself gets cold, for the same phase change reason as your air conditioning system. The best aerosol can example of this is actually the AC cans themselves when you go to recharge the system. The reason they get cold as you're feeding it into the low side of the AC system is that they're going from highly pressurized into a liquid, and phase changing to a gas. So while nothing you said is wrong. Nothing he said is wrong either. You just misunderstood what he said.

This is the way I was taught and the way I have been doing it for over ten years. Take that how you will. Thanks for watching!

SAME. I am so confused

Notice the guys saying not turn upside down are DIYers. The pros know that the whole point of a compressor is to turn liquid into a gas. It ALWAYS has liquid coming in to because it is in the loop after the condenser which converts the gas to liquid in order to get the cooling effect. So of course the compressor can handle liquid. Google image search for car AC diagram to verify this is true.

@@Grrrnthumb Compressor takes in gas at low pressure and compresses it to higher pressure.

Ok, so, do what he did in the video, but add a can of refrigerant before connecting high to prevent vac leakage?

@@ShyRage1 Correct. Break the vacuum with refrigerant. You want positive pressure in the system so when you make a connection, refrigerant will come out rather than air going in (not good).

Old school is to leave the system under vacuum over night and check for vacuum loss the next day.

Theoretically you are very welcome! lol

Nice work!

Thanks for sharing!

The same issue no one would do it for less than 75 bucks here in Kansas.

I had the same issue on the phone. However I was able to find a shop to recover for free. Three tips 1. show up in person 2. Try collision repair shop as they have the ac recovery machine but aren't in business to make money with it. 3. Don't go to a corporate chain; local small business will be more likely to work outside the box.

Hey Larry! Thank you so much for watching and nice job on the A/C work! Best, Ryan

I appreciate that!

Nice work! Thanks for watching!

Always!

You got this! Thanks for watching!

Glad it was helpful! Thanks for watching Dwayne!