DIY R1234yf Conversion To R134a How To Recharge AC Refrigerant On 10th Gen Honda Civic AC Fix Part 2

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R-1234yf conversion to R-134a on the newest generation Honda vehicles. This DIY guide shows you how to recharge refrigerant 134a and use a vacuum pump on the AC system properly while avoiding big bills from the dealership. Adding refrigerant to the air conditioning system is not difficult at all.

Make sure the whole AC system is evacuated at a shop since you do not want to mix both refrigerants. I changed the AC compressor, desiccant filter, and the compressor oil to accommodate the 134a refrigerant charge.

Please try this at your own risk. Don’t mix the two refrigerants. I recommend to drain the old compressor oil and put a compatible oil in.

IG: Cars_with_Ellie

#DIY #10thgencivic #honda #CommissionsEarned
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I am happy you succeeded the first time, and you remember to purge the air in the yellow hose.

d-s-ll
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Shout out to my frugal ambitious DIY hubby! 🙌🏽😜🥶🥶

eliseypoo
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Thanks Sal for the video. I just fixed my 2016 civic that had a bad compressor. Doing it myself helped me save over $2000. And now my family and I have cold air.

johnathancooper
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Thanks for both these videos my guy! My local Honda dealership wanted $2300 to do what you’ve done in these two videos. I’ll be taking a crack at this to try to save roughly 1.8k.

Yore
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Great job Sal!! Just a word of caution. When hooking up the connection to your schrader valves, don't tighten them so much. With continued use you'll begin to wear out the threads below the knobs. They just need to be tightened enough to open the valves.

Speeddemon
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Thanks again for the help Sal. I tackled the compressor swap today, still waiting on the freon to recharge the system. Anyway, FYI for others, with a Civic SI the job is much different, meaning it is much harder. There is, what I believe to be a huge portion of the exhaust manifold that is 100% in the way from under the car that prevents you from having any chance of getting to the top two bolts on the compressor. We ended up having to take half the front end of the car off (slight exaggeration) so we could access from the top. Even then it was a royal PITA but we got it done. I've had the pressure test going for about 90 min & so far so good.

oldfatdude
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You should only vacuum through the high side. If the system is all good the low side will also pull down on the gauge as well. Add oil/dye through the low side (poor into hose while vacuum pump is on) when under vacuum with the tap closed it will pull through the low side from the high side into the system.

You should also add refrigerant into the high side first before even starting the vehicle. Close high side valve. Start vehicle then fill rest of refrigerant through low side. You don’t want to start your filling process on the low side as you run the risk of liquid refrigerant entering your compressor and hydraulic it.

ryantaylor
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Our commute home is more comfortable now 🙏🏽

eliseypoo
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Nice job bro. My compressor just went. I'm fixing it this weekend. Thank you for explaining the process.

joserivera
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In my country they do this same process, but they always use the oil that the compressor uses according to their manuals. I don't remember the name but it also ends in “YF”. They only change the refrigerant gas, which in this case is R134A instead of R1234yf. My car is a 2018 Honda Crv, 1.5 turbo, and it works well.

eduardoa
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First start the fill before u turn on the AC. Also depending on where the low side port is you either hold the can upside down if close to evap to put in liquid or right side you to put in gas if before the expansion/orrific tube. Flipping back and forth is going to put the wrong state of the freon in which can damage the compressor

scottjones
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Yo! I’m working on this swap now. Is yours holding up? Everything online says to swap the condenser and expansion valve. Seems like a lot of work but since you swapped refridgerant I’m wondering, did you do anything besides the compressor

abscissatv
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Hey Sal. Great video...thanks! I am wanting to do the same thing on my car, because the condenser went bad. Did the compressor you installed have PAG oil in it that assumed R1234yf? If so, have you had any issues using R134a with it?

ShaneChapin-gj
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Thank you! Finally someone answered my question: is it possible to use R134a instead of R1234yf? . Obviously, thermodynamically they are very similar or this wouldn’t work. I don’t care that R 1234yf is so much more expensive (4x more). I added the R1234yf last year in my Cadillac XT5 and again I need to recharge it this year. I didn’t realize this was a common issue with R 1234yf.

joemelissabucik
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How was the conversion of the refrigerant so far going? Would be nice for us to know. Thanks.

williedizon
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Great videos, Sal. Thanks! Do you mind providing a link to the information where you determined the correct PSI readings for a given ambient temp?

bwagner
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How is the AC working so far since you swapped to r134a? Any updates?

dmochi
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Hello Sal, nice video. How's your aftermarket and R1234a conversion? I have the same compressor for my 2019 CRV and AC died. I wanted to go the same route as you did, genuine compressor and R1234yf is very expensive. Thank you.

manedg
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Hi thanks you for the video, other than compressor what others think we need to buy ?

zaetanay
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Hello friend, thanks for your contribution, I am about to do the same to my 2018 Honda civic. I have a question, what do you mean by this. “Make sure the whole AC system is evacuated at a shop since you do not want to mix both refrigerants”.

1.-If I fill with the same 1234yf coolant do I have to clean the lines.

2.-Cleaning the lines, can I do it with the vacuum.

I appreciate your time to respond.

pedromunizvirgen