Pull Vacuum on Vehicle AC System | 134a Refrigerant
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- Опубликовано: 1 окт 2024
- We'll show you how we pull a vacuum on a vehicle air conditioning system. You need to pull a vacuum on the AC system twice. You pull the first vacuum to see if you have a leak in the air conditioning system. After you repair the AC system, you pull the second vacuum to check for leaks and to remove all of the moisture from the AC system, before you charge the system with refrigerant.
RUclipsrs please take note of this excellent tutorial. The presenter doesn’t assume anything. Every step is perfectly spelled out Fantastic job!!
Thank you for the nice comment, pm1035. I'm glad you found the video helpful. Happy DIYing!
Thanks for your video. Used this method after replacing ac compressor on my son's 2003 Accord. After using the pump it lost vacuum, albeit very very slowly. Another time it lost a little, then held. In the end I charged it up, and a month later is still blowing ice cold. I suspect the $50 ac vacuum pump/gauge kit I bought from eBay had the leak, or maybe it's hose attachments did not mate well with the Schrader valves. Annoyingly the attachment on the end of the yellow hose on the kit would not fit on ANY of the refrigerant can adapters, visited several Auto discount stores and they confirmed this, so I was forced to spend a further $18 on a hose/adapter set so I could actually add the R134 (any saving on buying a cheap ac kit was lost right there, not to mention the time I spent f**king around). If it stops blowing cold I'll add some UV infused R134 and try and source the leak, have to say the condenser does look a little beat up but time will tell!
You're welcome, Robb. I feel your pain. :) Typically, when I work on ACs, the gauges have some sort of issue to adjust or repair. FIY--AutoZone loans out a UV detector/tracer. For the record, I admire your frugality. Happy DIYing!
@@frugaldiy1 my frugality extended in trying to persuade my son not to bother repairing the ac in the first place as the car is only worth $1000, also he lives in Maryland so it's not like super hot all the time but of course he didn't listen.
Of course. The tendency to ignore parental advice is written in the job description of children.
Fantastic tutorial!
If the system wont pull past 20, what could be the issue? Faulty pump or gauges or something else?
Question: why use both ports to vacuum when the system is connected high to low?
Yes, very good thorough explanation!
Geez you see the mitts on sister??!!
Thus is the best video I have found. So educational and super detailed how Does this video only have 89 likes?It should have a million
Thank you, Angel. I appreciate that--truly. ;)
Good video on the topic, would have been interested in how much oil you added for the component that was replaced.
The receiver-drier called for .7 oz.
@@frugaldiy1 Thanks for the reply.
Excellent tutorial! Thanks….
You're welcome, pm1035. Thank you for your nice comment.
How can the gauge recognize pressure if you close it at the gauges?
Watch again at 5:25. I think you misunderstand, the gauge she has closed keep a closed system.