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Customer Customer States Mechanic Fails Engine Transmission Gas Diesel off road race 4x4 street car daily driver scam dealership dealer technician how to

So with half the country being blanketed under a smoke screen, people are kind of becoming aware of the air quality in which they're ingesting. and uh, that that theme range true with this 2018 Buick Enclave with I don't even know how many miles 97, 880 miles on the odometer. Customer states that after driving for a little while, the AC is not as cool as it should be and sometimes they hear some noise down below in the dash compartment area. Now, this thing's been running here for a little while.

We've got a center vent temp of about 40 degrees, which tells me that the system is cooling currently so uh, it's got to be something intermittent or perhaps the system is freezing up. We're going to go ahead and get started with some visual inspections and then we'll see how this thing plays out. First things first: I'm going to go head over to the passenger side of this vehicle and I'm going to try to pop out the cabin air filter that's the filter element for inside of the vehicle. We're gonna see what that thing looks like and then plot a course of action.

from that point forward. I've busted out the R1234yf machine just in case we need it. I Don't know if I will, but if we do, it is here. It's not my machine I Had to borrow it.

It's getting kind of icy. Look at that. Windows are fogging up. See that right there? Yeah, it's cooling very efficiently right now, but it doesn't mean it's going to do it all the time.

Yeah, that's right. These fancy, new, modern vehicles have filters inside of the dash, so we're going to need to gain some access behind this. uh, glove box compartment. So I'm going to gently dig out all the goodies in here, set them down in an orderly fashion, and uh, we're gonna get into this filter canister area now.

We can see right here. way back in that hole, you see that little string right there. that is the door check device. It basically tries to.

Uh, well, it's a it's a spring-loaded cord and it's designed to pull the door that way. The door cannot flop down aggressively when you release the, uh, the latch mechanism, see how it goes down slowly. That's what that thing is for right there now. This can be kind of tricky to remove because it just sort of snaps into place, but there's really no room over here to get your fingers, so you've gotta kind of just pry it down with a flangy or a maybe even a screwdriver if you can.

You can get away with it without scratching the plastic. I Push mine down from the inside. We're gonna let it go. now.

up here and up here. there's going to be two little tabs that secure glove box into position. See what it does when you don't have that door check installed. It just falls down.

We don't like that. so we're going to push it in, push it in, and then swing the door downward. There we go. So now we have exposed the internals behind the glove box door and if we look way back in this little cutout area, we can see that there's a there's a tab and it looks like some kind of a cover.
And I do believe that that is the location of our cabin air filter filtration element. Let's get this thing unscrewed and we'll see what kind of condition this filter is in. bear with me here. It's a tight screw that's never been removed before.

come out all the way out. Save that we've got the tab here on the right. We're gonna pull that tab simultaneously. There's another tab up in the top.

We're gonna pull that tab if I can get my finger on it Premier tab and then over on the left. It's tough to see because there's not much light, but there's just a little, uh, another tab that kind of hooks into those little holes there so it swings into the tab and then you pull it back to the right and then swing the uh, the door closed and that's how it latches in. Behind said door is our filter element. Let's see what we've got here.

Uh, the greatest. Put some light behind it and we cannot see light through this filter. Now one thing that I just noticed was a change in fan speed I Don't know if you guys can hear that from here, but listen, pull it back out. that fan speed is starting to pick up.

So that tells me. And it does in fact confirm that there does happen to be a restriction here. Now with that filter removed, the pool is removed. We saw we had like 40 something degrees on our thermal meter and now with that filter gone, it's rising ever so slightly.

We were at about 44 45 degrees when I pulled it out. I'm going to put that thermal meter back in the vent right there. We're gonna let it hang out as it sits and cool without a filter in it. Meanwhile, I'm gonna go order another filter and then we can come back and check what the uh, what the temperature is I uh I Speculate that that restriction in that filter could actually be causing the evaporator to develop some ice and freeze up and cause reduced flow over the fins, thus causing reduced temperature in the cabin.

Or I'm sorry, increase the temperature in the cabin which would be reduced cooling capacity. That's what I meant reduced cooling capacity? Anyway, let's get this thing out of here. That's no bueno. Let's get a new one ordered and we'll go from there.

If we don't experience any symptoms, or if we do experience any other symptoms, we're going to go ahead and hook the machine up. We're going to weigh the charge to see what's in it. but I Think that, uh, this condition right here may be the culprit for the Situation's hand that's been in there for a while. Uh, let's see, that's a GM filter that could be the original GM Part Number One Three Five, Zero, Eight Two three.

See it right there. Made by Micron air. Yeah, not the greatest. Lots of dander and debris and pollen and dirt and everything else.

Okay, let's get a new one ordered. Let's see what happens. Okie dokes I Return I Return with some fresh new replacement components here. Let's uh, let's unbox this unit.
We'll do a compare and contrast and then, uh, see if we get any kind of changes in temp. So right now we're at 42 degrees, it's fully exactly how it should be. All right, Let's go ahead and unbox this unit right here. See what we get? Shiny? Let's see instructions.

Don't need those I make my own instructions. Okay, now these cabin filters. They're going to have an airflow. Direction 99 of the time.

the airflow inside the HVAC boxes is going to be a top down configuration. Some of them are sideways, but you want to pay attention to where those arrows are pointing that way. when you, uh, pull your oil filter out, set it down and get your new filter to put it in. you don't end up putting the new filter in backwards.

Some of these filters are HEPA filters. Some of them contain charcoal and uh, point being is they're all designed for one specific direction of airflow. kind of like the the filter in your house. If we, uh, do a side-by-side comparison, we can see that there is no comparison.

This one's clogged up and dirty and we don't need it. And this one. It's fresh and new and it's clean. So let's get this thing installed.

Moving on down, let's pull our little cover back off. It was only there for scientific purposes, but now it can be removed. Shoe you grab our new filter element. arrows down.

just kind of Wiggle that thing right on in there. There we go. snap our little Clips back in and we must not forget the screw that secures the panel. I Don't know why they decided to put a screw in there considering that it's got a clip and a clip.

but I'm not an engineered either. so I don't know I just work here. Get on there. Power tools would have been useful, but then again, I might strip the screw out with power tools also because it is just a plastic.

Okay, let's get this thing out of here. We don't need the trash. goodbye trash. We don't need the instructions, but we do need is to get our glove box back in position and we can see the hinges on this.

They're just little plastic plastic hooks so to speak. Just kind of snap those in and what we need to do is get a hold of that door. Check. See that guy right there? We need to get that thing lined up and pushed in.

There we go just like so. and then we just push the door closed, the little pegs snap back into position and this door is good to go. Sue I Very graciously, take all of our contents, place them back in the glove box as neatly as possible. For what that's worth, it's impossible to put things back the way you found them, but you can always try that goes in there that goes in there.

That all goes in there. Good to go. So now we've successfully replaced the cabin air filtration element. Let's take a step back one more time.

We're going to take note of the temperature. About 48 degrees is where it's sitting, but the door is also open. so let's back out of here. Give this a few more minutes and we'll come back and recheck it and then see what the temperature reads backing out.
Oh my. Screwdriver? Not forgiving that actually. by definition it's a bit driver, not a screwdriver. Goodbye trash, we don't need you.

Okay, it's been about 5-10 minutes. I Want to check a few things under the hood here? We've got some fan action which is good. A fan that is inoperative or uh, occasionally an operative can cause AC system pulse. We have no refrigerant dye in the service port at the low side.

Oh no I just dropped my cap. Okay I got another one. We have no die up here on this service port either. That's good to go.

Yeah, that thing's that's that's gone. Where'd it go? Oh man. I lost my cap. Oh no.

I'm just gonna try and try to find it. How Hot Hot hot? Nope. not gonna find it. getting a new one.

It's gone. Gone forever. Gone With the Wind gone like a freight train, she gone, vanished, disappeared. That's fine though.

I have extras just for uh, this sort of occasion. Let's try. You know what? I'm gonna try all of them because I don't even know which one it is. Look at that first try.

We got a winner cap. click Okie dokes don't need that in there either. All right what? I Want to do since we're not coming up with any symptoms I've yet to see a symptom where there was no. Cooling I'm gonna go ahead and take this out on the road and we'll see what it does.

You can see the windows are still fogging up. This is good. Center Vents got us at 40 degrees on the dot. This thing is performing exactly as it should be.

So let's uh, let's back out. is this: Auto Hold shifter button to shift I Did the reverse drive this car park reverse I did that I was pushing the wrong button. Okay, now we can back this thing out for safety. punch.

For safety, we're gonna go for a quick spin around the block, up and over the bridge, around the pass and we'll swing back and Shop in the meantime I'll keep checking on that uh on that gauge to make sure our cooling is cooling like it should be and if I come up with nothing. um I'm gonna have to let this ride as it is. Park All right, Safety clicks engaged. Let's get out of here.

Drive Drive Buick Drive All right. I Don't hear any noises, no compressors, squeals or sounds of that nature. Thermal meter is looking good. still hanging out in the low 40s.

We like that I turned it down the fan speed just a little bit. It was kind of just like blasting cigarette lights looking good. Okay up over the bridge. still no abnormular condition present.

We've got some throttle going here AC is still remaining cool. So this is an odd situation because the complaint stated that uh, it does not cool on occasion or it's a the cooling becomes less efficient. Um, it's a really hot day outside, so if that condition, uh, condition should present itself, we've had about 20 minutes of run time in total, a lot of idle time, a little bit of off idle time, and we've got very consistent AC measurements here. So I don't believe that the system is low on a charge.
It's making proper pressure because there's no way we're going to get 40 degrees out of this thing if it wasn't functioning as it should have been. The only thing I can really think of that could cause this thing to intermittently fail to cool is a frozen up evaporator. or perhaps the fan up front is a inoperative intermittently. but uh, we'll have to catch it in order to confirm either one of those things.

Okay, sitting here at this red light, our temp did creep up to about 50. we might be getting somewhere. Ding Text message that's at 50 degrees now. Green left-hand turn.

Let's get back to the shop and put this thing back under observation. I think since we are witnessing a uh cooling failure event here, I'm going to go ahead and plug that machine into it. Yep, here it is. it's happening I Feel it like coming up on 60? Now look at that.

So we do have something going on with this. uh, this unit I Hope to find that the Fan's not running fingers crossed. That'd be great. I mean even 50 degrees is not that bad.

I'm going to assume this is the symptom. ideally I'd like to see it come up to like 65 or 70 before I can really go? Hey yeah, we got an issue going on here because this is this is still pretty good 50 degree air in the cabin with uh, outside ambient tap of around 93 degrees? That's that's very good performance. I Hear a whistling in the dash like a hiss. You guys hear that? I hear you hiss.

We may have a sticking expansion valve in this truck, car, van, van, car truck. See now we're coming up to on the high 50s right there. 55. Okay, all right repressing the park button, we're back at the shop temperature has come down a little bit.

What I'm going to do now is just hold this at a high idle do like 1500 to 1800 RPM and I'm going to monitor that gauge for a couple minutes. Okay, a couple minutes of 1800 RPM and we are still hanging out in the 40s here. Uh I don't really have much Direction on this I have a thing text message I've um I've gone and looked at uh at bulletins on this and the only bullets in regarding the AC that I can found from GM states to check the condenser at the desiccant pack for any kind of leaks or die I've already done that visually earlier. there's there's really nothing to see, but there are no leaks that I found at the condenser as per the bulletin.

so that's kind of a dead end. but uh, or I'm still looking here and we're 40 degrees. but I'm also not hearing that hissing sound again either. I'm I'm wondering if uh, if this thing has a failing expansion valve I I think that's what I want to go with I heard that thing going? Um, but I still don't have a failure here.
There's nothing really concrete I Kind of don't don't know what to do. Well, there's really only one thing to do I suppose and that is to re-popping easy. Hood Let's go ahead and hook the machine up to it and just get a baseline reading on the pressures just to make sure that this thing is not deceiving me somehow and it's actually running at a stupid low pressure, but cooling efficiently. Let's get this thing opened up again.

We'll get our machine hooked up and then see if we get any other Clues to work with. The fan is still Fanning it's in high speed mode I Don't think we have a fan issue here. Where let's go ahead and get this thing rolled over a little closer the bust opened the Caps get her connected, get a pressure measurement, and then we'll kind of go from there. There's our low side.

Let's see. these are one, two, three four connectors. They're slightly different than the Uh 134a connectors. Let's open that guy up 30 pounds on the low side.

That's right where we should be near. you. Come off there. Let's check our high side real quick.

Mike Where are we at? 200 Yeah, right around 200. PSI That's right where we should be. This is exactly in line. Okay, you know what? I think I'm gonna go ahead and just do a recovery on This We're going to weigh the charge and uh, make sure that that's good to go.

I'll recheck for uh, any kind of evaporator noise or uh, expansion valve noise after a recharge. it could be low. maybe? It also just told me I left the keys in it. That's a GM thing.

they beep at you. weird when you leave the keys in. Let's see machine powering on begin powering on. Now there we go.

This thing might take a while. Last time I used this machine. it was a well. it was kind of slow.

I think it's kind of slow this time too. Okay, the machine is now alive. Let's select one, two, three, four. YF that's our new age, newfangled refrigerant.

uh to connect the connectors. We did that. So what are we doing? It's gonna Evacuate the machine clear the machine out of the 134a. that way we don't cross contaminate refrigerant type.

So 10 minutes later I'll be back. You stay here. Okay, Okay, okay so I kind of missed it I was off doing some Silverado work or uh GMC Sierra work and this thing went ahead and recovered and look what it got here. 2.35 pounds refrigerant.

This thing was super low on refrigerant. Okay, so according to this machine's scale, uh, this thing is actually quite low on refrigerant. So I need to get a better look at that condenser up here where the bulletin states that leaks are potentially uh present. There we go.

So I can't see much of it through the front. I've already kind of looked so I'm gonna go ahead and start pulling off some of these panels here. Come here, you little clip a little, pull this upper panel off and see if I can't get a better line of sight on that condenser to, uh, inspect it for a leak. Let's get that one out of there.
Come on you, that one's stuck. Nope. I'm off plastic and I can't really see much. Let's see here.

Okay, here's our condenser over here on this side, but I was looking for a leak at the cap on this condenser and I do not see the cap. It's got to be farther down, perhaps towards the bottom. Why can't I get a visual on this thing? It's not okay. Okay, well this is kind of getting a little scary.

I Had to order a can of liquid gold right here. that is. Uh, one, two, three, four, YF refrigerant and uh, it is. It's a 10 pound bottle.

Uh, that 10 pound bottle is over a thousand dollars. That stuff is expensive. Like it's so expensive it shouldn't even be legal anyway. I'm gonna I'm gonna change out this valve real quick here.

Let's get our new service valve reinstalled. There's our old one I Don't think it was leaking, but it was going to be replaced regardless. So here let's take that guy in there. We go.

All right. So, our machine over here is refilling the One Two Three Four YF tank inside. We had to order a new tank. so this thing is refilling right now.

Once we have enough in this tank to install it back into this car, we can get this system recharged and then we'll evaluate it one more time. In the meantime, I Busted out the ultraviolet Luminator and we're going to look around for any signs of UV dye that might be present here. Again, we're still looking for a leak. Man, this thing is slow as molasses to fill the tank.

One two, Three Four YF is the slowest processing system ever. It takes for eternity to do anything. It's not fair. It's not fair because this machine and the programming in this machine is designed so you cannot fill a system that has a leak.

So what it'll do is when I go to try to charge this. it'll check it many, many times. Like two or three times it'll pull the system back down, re-weigh the charge, put it back in, pull it back down, re-weigh it again, and it makes sure that there's no leak. And if there is a leak, uh, well.

the reason for the programming is to make sure there is no leak. That way you cannot charge it. So basically, we've had to put in more restrictions on the professional level. machines that weigh unprofessional types of people cannot operate said machines and it effectively install charges in vehicles that have no good place.

I Just I Don't understand why they do that because the majority of us actually know how to operate this stuff and we know how to handle refrigerant. Therefore, all these little safeguards and rules that they put into place with this programming is frustrating and time consuming and ultimately the end user slash consumer, they got to pay a bill. You know they put the price for the 1600 can of crap. when the reality is, we don't really need that.
You know we can go along with the 300 can of the regular stuff that we've been using for 20 years, but uh, you know I'm no bureaucrat, so what do I know? Anyway, rant over: I'm still waiting on the machine as soon as this thing says we've got 2.4 pounds in here I can go ahead and get the charge back inside of this this Buick right here and we'll take it on the road one more time to see if we can hear that expansion valve whisping noise that we had heard on our prior test drive. So I'll be back when this thing is done. It's going to take like the rest of the day so I'll see you guys at the end of the day. Be right back.

See look I'm not even kidding. It's doing some kind of pressure check procedure now as it's simply just filling this tank with that tank. So it's it's checking the tank that is brand new. I I Don't know, it's it.

just takes forever. I don't know I'll get it. Makes me angry. Okay, so while I'm waiting for the machines to do their job, let's go back down below here.

right in front of us. what we've got is the the lid to the desiccant pack that's the receiver dryer slash accumulator and I've got the UV light on it and I do not see any presence of reactive dye, uh, whatsoever. Nothing appears to be leaking here, so that's kind of a confirmation. There's no leak in reference to that service bulletin.

All right, since we confirmed that there is no condenser leak. I Guess we can put this very fancy, uh cover device back on. Let's get that thing back into its home right here and re-clipped back together. Smash that dragonfly, he won't notice.

Okay, let's get this thing back on and I'm still waiting on that machine to do its, uh, machine stuff. Uh, once that's done. like I said. I'm gonna recharge this thing.

We're gonna head back out on the road and see if we cannot recreate or listen for that uh whisping sound that we heard inside the dash. It's kind of. It's kind of what we got so far. That's the plan I Don't know if that's a good plan, but I do know that I don't find any leaks and I found the system was low which is really stumping me because I didn't realize that uh well.

it didn't appear to be underperforming while low. but again, that's also the it was low on reserve capacity as well. so I can kind of see how it would like it would cool but I wouldn't think it would make 40 degrees with an almost empty uh refrigerant. Reservoir and that's that's kind of a new one.

There we go. Okay, vacuuming in progress. We're trying to pull this thing down. it's taken multiple hours.

I'm getting frustrated but uh, nature of the machine. So when this thing is done, I'll go ahead and see if I can't get this charge reinstalled and then we can reevaluate the system performance. Okay, we're recharging, it's sending it in. We need 2.42 pounds refrigerant.
That's the conversion rate from 1.1 kilograms of refrigerant. So let's see what this thing's gonna do. Is it going to take it all or is it not better? Yep, still waiting waiting around. Come on.

AC Machine killing me here. Killing me Smalls Okay, so I had to start over again I Ended up switching this over to a low side charge and turning on the engine. That way the compressor can provide some suction on the low side to help hold the charge into it. It kept stalling out on a high side charge and it would only give like uh I think it was coming up to like uh, like 60 percent charge and that was all.

It would not give anything more past that 60. So I did a high side low side split. We're pulling it in now. let's go and uh, check the thermal meter I've still got the system running.

It's about five minutes of run time. let's see, look at that there 40 degrees. so we're back down to a level of making cold again. As soon as that thing finishes up, we can get out of here and go.

Uh, go hit the road. I'm here super duper late because uh, this particular system has done what it has done to me. It just it takes a while for this stuff for this thing to do its job. Um, kind of gotten over the Rage of the one two, three four, YF machines Protocol: I Just got to deal with it.

but uh, here's what it is. Look, it's a miracle that wants me to do something. Turn on AC Close High pressure adapter I Guess HP is for high pressure. Close that guy.

Enter: All right. we're getting somewhere purging the hoses now. Hose Purge In progress. This is good.

Absolutely fantastic. I Hear the fan running, high speed fans chooching away. Let's get our cap on and as soon as we're done searching our hose to get that low side off, we'll go out for one test drive. I Know it's super late, but I'd rather finish this than uh, make it.

uh, make it something for me to do tomorrow morning. Okay, let's go back inside. check our thermal meter. Look at that like 41 42 degrees.

That's where we should be. This is good. Fans are still going and our machine here says charge complete. 2.39 pounds of refrigerant converted from 1.1 kilograms.

That's uh, almost exact slightly. I think it won a 2.42 pounds, but hey, if it's good at 2.39 I'll take that. so let's get our low side fitting disconnected. After that.

enter let's recover whatever's left in the hoses. So we go to recovery again into our recovery mode here to miss. All right, one more cat, let's hit the road. I Want to see if I can hear that that noise that was coming from the expansion valve inside of the dash and we want to make sure that the temperature on this thing does not rise up into the 60s like what we had seen earlier.

Okay, reverse gotta push the correct button and windows are fogging up again. this is a good sign. it's making cold I Like it Park Button engaged. Let's go get that gate and we're out of here.
We go. Seat belt one more time, Pick a dirt ticket and Drive very good. So on the bright side, staying late. that means there's less traffic to deal with, right? Hope so.

All right. Same test drive, same route, roughly the same conditions, just at a different time. and as of right now I Don't hear that whisping sound at the TXV Inside of the dash appears to still be holding a steady temperature. I Think we're in good shape here.

Yep, 40 degrees, maybe even 39. it's nice now. One thing I did notice that was odd was the high side pressure. Uh, was up quite a bit more from the 250 that we found at I I think it was like 325 something like that.

So the high side pressure was a little high. Um, I'm actually a little concerned about that. It's almost high. As if this thing is overcharged.

Okay, I still have not heard any sound from that. TXV One thing is kind of poking at me though when I uh, when I disconnected the machine this last go-around the high side pressure was in the the low 300s. Um, not entirely unacceptable considering how hot it is today. I mean it is in the upper 90s, but it's almost as if it was overcharged with what the spec said which is 1.1 kilos.

Okay, so here's what we're gonna do: I'm gonna go swing this thing back in real fast and I'm gonna stick that high side line back on I Just want to confirm whether or not this thing is lingering in the upper 300s that that seems to be a little high for me. and I'm gonna have to check the chart because I'm I'm actually a little concerned that perhaps I just overcharged this AC the reason I think that is I recall Once Upon a Time some of the Buicks having gone out with uh, the wrong sticker regarding the charge level, just double check everything. one two, three four, YF 1.1 kilograms. Okay, that is the correct yeah plus that fan right there is still hanging out at Uh at high speed and I Recall earlier, we did not have a high speed fan action just with the AC running.

so let's get a real quick pressure check the other guy. we're 300 PSI right here. that's I think that's a little high. Let me go double check the refrigerant level with some other sources because I'm I'm almost wondering if this sticker is not the right one for this car.

it's it's possible I Remember some of the Buicks having gone out at the dealership that had the wrong sticker on them and uh, we had to replace the stickers as a part of a service recall show. Here's what I'm gonna do: I'm going to go ahead and copy our Vin and we're going to bring up all data and we're going to look this up in all data just to make sure that it does not give me another spec. So we're going to go to fluid types and capacities right here. and we're looking for heating and Air Conditioning.

There we go. Fluids lead to approximate fluid capacities. That's what we're looking for AC System refrigerant. Where's our refrigerant at? Nope, Here it is.
Look One, Two Three four, YF and it's asking for 2.43 pounds of refrigerant. Okay, well based on what I know we took out and what I know I put in that is the correct amount. which tells me that 300 PSI is I mean it's It's kind of on the high side, but that's where it's running right now. Alrighty, so I just checked the One Two Three Four, YF chart and it says that the high side pressure for today's temp and humidity should be like 275 280.

So I'll give it the 300 that it's running at. Come here Dorf! I mean that does seem to be a little bit high, but yeah, I tried for now. I'm gonna take this out on one more test drive tomorrow morning. Let's go ahead and get this.

Uh, we moved again. we don't need that anymore. Disconnect click. Oh, we'll cover this guy back up and I'm gonna go ahead and close this up and shut her down while I'm doing that.

I'm also going to go ahead and close up this video and shut this down too. I've been tinkering with this car all day. Like I said earlier I'm ready to roll. Time to go home.

We're still making nice cold air on our interior and I don't hear any wispy action I Didn't see it get warm as we were driving. so I think we're good to go. That being said, let's power this thing down As always like thank you guys for watching this video. Certainly hope you enjoyed this video.

If you did enjoy this video, you know the deal. Please feel free to let me know about that. Bye tapping that like button down below. Drop me a comment or two while you're down there and most importantly, beat.

Do not forget to have yourselves a great day! See you guys later in the Buick End of one, two, three four YF refrigerant end of agonizing diagnostic individual in a day in a transmission and of course shop powering down.

100 thoughts on “Simple job took hours! 1234yf freon”
  1. Avataaar/Circle Created with python_avatars Eddy Kirksey says:

    Great video Ray! I never heard of a filter like this. This is why I enjoy your channel. I'm always learning something. Thanks Ray.

  2. Avataaar/Circle Created with python_avatars Arthur Fricchione says:

    Thanks for sharing Ray. Good vide 👍

  3. Avataaar/Circle Created with python_avatars Lamar Greene says:

    Yea I call it 1234You’reFucked lol

  4. Avataaar/Circle Created with python_avatars 79 Aspen Sunrise says:

    Those R1234yf machines are the result of the government dictating the protocol. I hated having to use it at the shop. Hook it up, turn it on and,,,,,,,,hurry up and wait, and wait, and wait…….

  5. Avataaar/Circle Created with python_avatars Richard Ploeser says:

    Do you return old tired used parts/filters to customer as a reminder to them to change filters?

  6. Avataaar/Circle Created with python_avatars LostSoulParanormal says:

    Hey if you want to try something a little faster. I empty the system and use a smoke machine to check for leaks. I bought a 1234yf adapter from Amazon and use that to put smoke in system

  7. Avataaar/Circle Created with python_avatars Dave Blevins says:

    You definitely nailed the bureaucratic bullshit, because somebody is getting a kickback on that ridiculously performing machine, + associated costs to the slaves. It's definitely time to replace government.
    Love ya Ray 💥💥👍🇺🇸🇺🇸

  8. Avataaar/Circle Created with python_avatars Jay Kellett says:

    The thorx screw in cabin air filter cover is to discourage car owners from changing their own filters. Dealers will charge $40 to install a $10 filter. 🙂
    While your waiting around Derek suggests you have a "cold snack". LOL

  9. Avataaar/Circle Created with python_avatars orlandotech says:

    1234 Yur Fucked

  10. Avataaar/Circle Created with python_avatars Chris 🇬🇧 says:

    I’m glad you did this video ray it gave me a reminder to change my cabin filter 👍👍great content as always 😊

  11. Avataaar/Circle Created with python_avatars Dave Drew says:

    What about recycling every thing seems to go in the same dustbin. Or trashcan in the States.

  12. Avataaar/Circle Created with python_avatars Dale says:

    ⁰ you're one of the better mechanic

  13. Avataaar/Circle Created with python_avatars Marc Fox says:

    It appeared to me that that clip at the center top edge of the filter door didn't get fully snapped in.

  14. Avataaar/Circle Created with python_avatars John Hall says:

    just a question ,did you check the condenser fins and make sure the do not have an air restriction, that would cause your pressure to be higher. been doing ac work since 1982 so i know a bit or two.

  15. Avataaar/Circle Created with python_avatars Alan Prather says:

    condensor is on the high side of system, you would think shutoff switch would kill it if it had a leak there. it would be pouring out.

  16. Avataaar/Circle Created with python_avatars oracle wisdom says:


  17. Avataaar/Circle Created with python_avatars NEIL COOK says:

    I just had my first go round with our robinair 1234yf machine a couple months ago. Same thing, multiple checks taking HOURS to complete. I hate nanny systems. Its like how you cant check for wheel bearing noise by pitching the car side to side without all the warnings going nuts on top of actively resisting your steering inputs, i hate it.

  18. Avataaar/Circle Created with python_avatars Craig Arnold says:

    They really should have put more effort into making the cabin air filter more difficult to remove… What I saw was a 2009 Corolla glove box followed by a cover for the cabin air filter that is normally held in by 1 clip instead of a screw and 2 clips. Adding a couple more clips and screws ought to fix that problem. Maybe they should add screws to the damper that slows the glove box descent?🙂

  19. Avataaar/Circle Created with python_avatars cray seiler says:

    the pressure gets a bit higher in 1234 system even when its low cus it can still pull from the leak. i just had a 2017 buick(my system asked for 1kg not 1.1kg) i found a small leak on the line from compressor to condenser. rubbing on the lower transmission line and ac line.( 10 year gm tech in montana) ps i also had the whistle noise on pull in

  20. Avataaar/Circle Created with python_avatars Anthony Humbert says:

    At $550 for a 10lb cylinder of 1234yf vs $100 or so for a 30lb cylinder of r134 it's just a money making racket for the chemical companies

  21. Avataaar/Circle Created with python_avatars WalkGood says:

    Is there a follow-up ? How was this after the test drive the next morning?

  22. Avataaar/Circle Created with python_avatars Maria says:

    My problem is just the willingness to do it

  23. Avataaar/Circle Created with python_avatars paulkuyp says:

    Wow! Do u ever shut ur pie hole??

  24. Avataaar/Circle Created with python_avatars Hola! Bear, Homeowner DIY says:

    the single screw makes cabin air filter a service item since it requires a tool to replace the filter. genius, huh? Toss the instructions with mileage written on it and toss in the glovebox. One day owner may realize "I have a cabin air filter?" And temps should go up with a new cabin air filter since there's more airflow thus more heat absorption

  25. Avataaar/Circle Created with python_avatars Hola! Bear, Homeowner DIY says:

    I had replaced my compressor, accumulator, condenser, and orifice and flushed lines and evap. Same 40F temps which I thought was too cool. This was a system with a clutch cycling switch, not the newer compressor bypass valve. With clogged cabin air filters, I noticed: 1) very cold vent temps 2) short cycling. Compressor disengaged at 22psig and quickly went up to 37psig, compressor clutch engaged and pressure quickly dropped to 22psig. What was happening was the evap was getting cold quickly since the blower wasn't pushing enough warm air to transfer heat to evap. The warm air would finally catch up and warm up the evap and started cycle over again. With the new cabin air filter, the blower could move much more warm air over the evap to maintain a steady heat load on the evap, so it became a stalemate tug-of-war, the evap was now absorbing so much heat that the compressor had to stay continuously engaged and the suction pressure hovered around 27psig. Perfect balance as you don't want your compressor engaging/disengaging constantly. I turn up the fan speed, more heat is absorbed and the pressure would creep up. Turn the fan down and the suction would creep down to 22psig and disengage. Overall my vent temp increased to maybe 47F but that's fine – it's because now the blower is moving so much warm air on the evap that there is an actual heat load.. Since the 22psig-37psig was a bit out of normal spec, I replaced the clutch cycling switch and the cycle range was now normal – 24psig to 40psig. May not matter to most people, but I like perfection. The difference between 22psig and 24psig is a saturation temp of 25F vs 28F. Ideally seems R134a clutch cycling switch should open at 29psig (33.5F) so as it never be possible to frost the evap coil.

  26. Avataaar/Circle Created with python_avatars Shane Huey says:

    Today’s Lesson: 1234yf high side operating pressures are much higher than 134a. With only 4oz charge, it’s already at 200psi. At nearly 36oz fill, is 300psi really all that surprising?

  27. Avataaar/Circle Created with python_avatars Old Nightrun says:

    What would happen if you were to put the other refrigerant in to this car? Would it damage the system or not work for some reason?

  28. Avataaar/Circle Created with python_avatars Michael832 says:

    Hey there
    Yes u seen on your video on here that you have the same year P.T cruise. I wish you do a repaire on P.T like replace waterpump time built & other stuff for sane P.T cruise. Oh I am calling from Houston TX. My name is Michael
    Oh keep up the good work on your video & ❤it too

  29. Avataaar/Circle Created with python_avatars J W says:

    I had a Renault with a similar problem Ray, but in that case the A/C fault only showed up after 2-3 hours constant driving. Several checks proved inconclusive, but the owner knew someone who was looking for a school run car (it was a seven seater) and decided to sell his Renault but let the new owner know about the A/C issue. After two years of short/local driving the fault has not reoccurred and the current owner is very happy with the car. (Still annoys me that I was defeated though!)

  30. Avataaar/Circle Created with python_avatars hoseqt1 says:

    So what was the deal with the Desiccant???
    You did a Short showing the Desiccant, but didn't show it in this Video….

  31. Avataaar/Circle Created with python_avatars John Smith says:

    If you want your interior ruined then take it to this mechanic, he has no respect for his clients' interiors of their cars he's very hard on them.

  32. Avataaar/Circle Created with python_avatars dhldriver says:

    Do you have to drain the system before installing new shrader valves?

  33. Avataaar/Circle Created with python_avatars Nuke Neunes says:

    I was told (by mazda)that my mazda 3 2010 air con unit is a closed system and would never need recharging. I see hi and low side valves. my understanding of a closed system would be that there would be no valves. anyone in the comments who could make this term closed system more clear would be appreciated.

  34. Avataaar/Circle Created with python_avatars Seth B says:

    The old R12 would put out 34 degree air in my GMC 2500 while I was towing a loaded trailer uphill out of Death Valley in summer. Then came eco-Nazis with their R134 and the first R134 systems were GARBAGE! It will get up to 116 today. Imagine having a crappy AC system in a brand new car or truck when it's 116 out. Tomorrow it might get up to 118. Those R134/RF1234Y recovery systems are $11,000 and they kinda suck.

  35. Avataaar/Circle Created with python_avatars jaguar.racing.us says:

    chineseium car….chineseium process….chineseuim results. guaranteed to fail.

  36. Avataaar/Circle Created with python_avatars Kuntal Ghosh says:

    Never remove that filter while the fan is running!.
    Sometimes there would be big leaves stuck behind the filter and if the ac is running while you remove it those leaves will be sucked in by the blower.
    I learnt it the hardway in my car. Thankfully those leaves were stuck to the blower motor and i carefully stuck my hand through a tiny gap in the airbox to painfully pull those leaves out..
    Turn the ac off and then remove the filter. Use the light to check if there is other things in the airbox.

  37. Avataaar/Circle Created with python_avatars TheRealTailGateTech says:

    Another fake repair video. Fix a car with no problems. Get off the dope.

  38. Avataaar/Circle Created with python_avatars lukezins says:

    I love your videos. I understand your pain of R1234yf. Im a technician for Tesla and i have to use that stuff every day in Teslas. It is so slow it ruins my entire day worth of work.

  39. Avataaar/Circle Created with python_avatars Mike says:

    Man I've been watching your videos for years now. I just want to thank you for all of the high-quality content that you – consistently – produce. You have educated so many people. You inspired me to take on projects I wouldn't have done before. Thank you Ray!

  40. Avataaar/Circle Created with python_avatars Chris says:

    You certainly did your best on this. Double-checking the charge amount was excellent. My question? What caused the coolant charge to be low in the first place? No leak was discovered.

  41. Avataaar/Circle Created with python_avatars DaveS 777 says:

    1234YF refrigerant is available for a WHOLE lot less than over $1K for 10lbs. Less than $500 Ability refrigerants; Royal Refrigerants – and other places…
    Also – different note: You weren't expecting the higher pressure and wonder if possibly an overcharge. The really slow machine might be out of wack… However – after you recovered the total refrigerant from the car – before you added any (& I know you weren't expecting the problem) – you did not check the temp/pressure of the recovered refrigerant. Contaminates cause excessive head pressure. Your not aware of what's been going on in the system – and if the refrigerant is contaminated – you will have excessive head pressure. You mentioned that it was not quite 100F – so at 100F – the recovered tank would have a correct pressure of 125psi if not contaminated; and at 95F – that would be 115psi. A 'quick' temp/pressure check lets you know if the refrigerant which was in the vehicle – is messed up & should not be used.

  42. Avataaar/Circle Created with python_avatars P H says:

    Ray, what is your take on car manufacturers putting the R1234YF desiccant bag as a maintenance item with a 2-7 year interval? Corvette C8 has it. Tesla used to be 1 year, but is now 3-4 years depending on the model. Anyone actually doing this as a maintenance item from what you see? Is it really needed? If so, why now?

  43. Avataaar/Circle Created with python_avatars Vogel says:

    $1000 for a tank. Yep, that must be the stuff they use in Europe. €180 for a charge (excluding labor) is what is on our bills.

  44. Avataaar/Circle Created with python_avatars Lonnie Y. says:

    Id lmaof if there was a huge rat in the filter. And yes I've seen it.

  45. Avataaar/Circle Created with python_avatars My Mix says:

    Looks like has no antifriez up to line?