HOW TO FIND A CLOG IN YOUR CARS A/C SYSTEM
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- Опубликовано: 27 июн 2021
- In today's video we take a look at a 2009 Honda Odyssey w/ a 3.5 V6 engine. The owners complaint is that the air conditioning is not cooling even though they already charged it with refrigerant. The other symptom they have is that while the a/c is running, freon or refrigerant blows out of the back of the compressor. Refrigerant shooting out of the pressure relief valve is a sign that the system has a major clog or blockage. Watch and find out how you can locate a blockage in your a/c system using a thermal temperature gun.
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Just FYI my explanation of how the A/C system works is very simplified and meant for a general understanding of how an expansion valve works. I know some of you very educated viewers may give me a hard time. I’m just trying to help the regular Joe diagnose and fix his or her A/C this summer. Thanks for watching!
It was a great explanation in terms of solving the problem and fixing the car. That is what 99.9% of people are here for, anyone who wants to go more in depth can go to Wikipedia or an HVAC channel.
Exactly! Thank you!
Thank you for the clarification. I know you're a very smart guy and a superb Mechanic but my initial reaction was WHAT???! At the end of the day, I'm glad the problem was resolved. Keep it up, Man!
Great explanation! I like you corrected yourself saying refrigerant, instead of freon. That took a long time for me to break the habit of calling it freon. For your youtube community. Freon is R12. Freon is the brand of Dupont. It would not matter if you called freon your viewers understand. Its difficult to create video content and explain the work you are preforming. A lot of brain power. Enjoyed the video.
@@713jtmechanic8 Is R22 called Freon also? I’m not sure. Thank u!!
As a master technician myself, I think you did a great job on this video! THANKS!!
Didn't know that there is a pressure relieve valve that vents like that. Good information
I didn't know either!
Learned something!
Yep, called high pressure relief valve to prevent the compressor and or evap, condenser to rupture blow with much force.
Located directly right on the back side of compressor itself
@@abechavez1876 its there to stop the evap from popping and venting all the gas inside the passenger compartment which would cause an accident, kill somebody and be a massive liability for the auto maker.
U r one of the straight to the point, no-nonsense, car repair guy I follow on RUclips. U r good!!!! I can easily follow and understand what you've just explained here.
Great diagnosis! Exceptional job of explaining how a vehicles a/c works & the inner workings of the refrigerant process!
Wow, an A/C video that I actually understood and learned something! Thank you for the clear presentation and explanation. 👍
Great basic explanation and how to on the diagnosis. The obstruction essentially acted like an orifice tube. You’re helping people understand complex mechanical issues and hopefully save money on their rides. I think your in H Town like myself too.
One little correction the refrigerant coming out of the compressor is a gas it doesn't become a liquid until in goes through the condenser. IE it condenses the gas! Great videos bud!!
Correction, where there is a restriction, the condenser stops flowing and fills with condensed gas which is liquid. When the relief opens, the liquid boils and sprays a mix of liquid and gas. Safety first. Getting sprayed by this can cause severe frostbite. Think taking the radiator cap off an overheated car. Boiling liquid blows out under force. Same principal, but with refrigerant. Both are dangerous to get sprayed with.
You are a very very smart guy Eric ,thank you For the great explanation of how the air conditioning system works
It is incredible how much you know about how the ac system works as a whole. I've worked on my car but never actually knew this. Something in my ac blew and during my research I ran into your video. Absolutely amazing. Thank you so much for all the information. This helped SO much!
Another compressor that didn't need to be replaced and another costumer that paid for the inexperience of the shop. Great video Eric
Luckily this vehicle belongs to the car lot. It is used as a loaner or rental car.
It may be possible that there was something wrong with that compressor, it may have been damaged if it was building up enough pressure to trip to relief valve. Likely not catastrophic but it may have reduced its lifespan. Kind of hard to know with these things.
where do you think the blockage came from? a failed compressor and a system that wasnt cleaned out.
@@DieselRamcharger yes exactly your meant to replace and flush the whole system out that's what they get for being cheap
@@neilmurphy845 yup. running a solvent flush isnt even expensive.
Eric, your local JC / tech school needs you to teach
No question about it
I agree, you're a great teacher. You should look into it. Good pension and plenty of holidays. 👍
Better money fixing, and repairing them however. Especially if you're decent at it. This guy probably gets good word of mouth, and thus plenty of new and repeat customers.
He is teaching. 👍 He probably doesn't get paid too well, but he's putting in the effort to help others learn.
A very informative video, Eric! Many thanks.....stay cool down there!
You explain everything in such a short video, very informative. God bless you. Thanks for sharing.
Great video! thanks for explaining it so well, I learnt more from your video than I did scouring the web for the past 2hrs
Another excellent diagnosis and very clear explanation, Good Job! 👍
Had an AHA moment when you explained the cold discharge line temps and blockage! Thanks a ton man!
Eric you are a very smart mechanic. Well done.
By far the Best Explanation I am working on a Peterbilt truck and it’s doing the same thing…. Great Video 👍
Thanks Eric for the a/c video! I watch every video!
Awesome! Thank you!
You’re a very good tech. You keep it simple with a logical explanation. Also powers of observation to pick up minute details are bang on. Thanks
Great video and great explanation! Thanks for taking the time to share with us.
Phenomenal. I learnt how to better trace a clog. I knew how to diagnose clogs, but i wasn't too sure on how to determine where the clog was. The only thing I can say is refrigerant enters and leaves the compressor in vapor form, not a liquid. liquids cannot be compressed. Thank you
Taking my ASE A7 Heating & Cooling test tomorrow...this is a timely video. Any restriction/blockage drops pressure, pressure drop = colder. Between videos like yours and studying I realized how much basic theory I lacked...99% of A/C fixes I do are compressors (usually bearings or clutch) or leaks (often obvious damage, or found with sniffer or compressed air).
My explanation was very brief and oversimplified. I would suggest doing a little more research on the subject if you are planning on taking a test. Thanks for watching!
Thanks for the video! Keep them coming!
Hi Just come across your video. Very helpfull which helped me diagnose my clogged condenser. Many thanks for taking the time to post this. All the best from England. 👍👍
What a great demonstration, of the compressor saving itself from overload by releasing refrigerant. I've never seen that before.
When this happens will this automatically mean compressor or system damage? I filled my truck w/ R134a and I had this happen (blowout through relief valve twice). I then bled the system to bring down the pressure. I seem to be getting coldish air again and no more blowout. But I have and am seeing big pressure spikes in ac system.
Straight to the point as usual. Thanks Eric!
I love the drawings to explain how the AC system works. They helped me a lot!
Thanks for your thorough explanations❤️
That's a good point checking the temperature, having the same problem, did my research and everything point to the compressor, than I found a small leak on the low side port, I fixed changing the small valve inside and evacuated and fill the system, now is working fine .
Is the first video that I found explaining this issue so clear and how can be fix .
Thanks
Great diagnostic technique as usual dude. To clarify one thing, an A/C compressor is not design too and should not be allowed to pump liquid, pumping liquid damages an A/C compressor. The compressor discharges vapor into the condenser and the condenser, as the name implies “CONDENSER” condenses the vapor into a liquid.
Another great video,surely the mechanic should have done his homework like you did keep up the great work 😁
I love watching your videos. Once the RUclips algorithm starts pushing your channel, you’ll be past a million subs.
Thank you very much Sir!! Very informative and simplified teaching!!
The pictures you used were good. you are an excellent mechanic
Finally, a video that covers this issue!! Thanks so much!!!
Great explanation, sir! Yet another super video.
That’s crazy! I have two of the same vehicles in my shop at the same time!
Good afternoon family. Again. Thank you very much for the valuable information and for your time ⏲️ 🙏👍🏼👍🏼.
Eric another excellent informative video. The visuals are a great addition. You and family stay safe and well Artie 👍😊
Thanks 👍Glad you enjoyed it!
Great find Eric... WELL DONE!!! 10/10
Thanks for sharing your knowledge.
Good information keep up the great informational videos...
Your video helped me understand a lot!! Appreciate it!!
Good video bro. Im having problems at the moment,and you gave me good info.
Great video and great troubleshooting. Thanks.
Excellent video! Thanks for sharing.
Fast and accurate. Priceless.
Great Job Eric! I bet someone tried jacking the van up under the condenser and damaged it!
I have 2 older Civics and a Camry. All can be jacked up under the rad support. Found out the hard way that you cannot do this with an 08 Honda Fit. Stopped just before doing any real damage to the radiator and condenser but had to straighten out the rad support frame.
Thank you for the explenation. Very informative.
GOOD CATCH! and great explanation.
Nice video, great info. Thank you for sharing.
Thank you for sharing your videos.excelent.👍
Great video, and very well explained! Thanks for sharing!
Thanks for watching! I'm glad you enjoyed it.
Good description on the blockage findings. Love those temp guns...have a few of them and one is for the BBQ !
Great for grilling and smoking meat! Thanks for watching!
You explained well and now I understood the function of AC in a car. I have the similar situation where my car AC throws cold air for first time then on it is very hot air only. Will check the condenser first then proceed with my diagnostics. Thanks
my ac is having the same problem it only works at idle what was the cause of your problem?
Damn,, great video! I had one of those infrared temp guns but I destroyed it accidentally n been meaning 2 get new one, thanks 4 video makes perfect sense
Thats what I wa doing all day today, Thanks this helped a lot !
Excellent video..i knew it was related to the condenser..Very well Done.
Be great if you told us what you charged for the Diagnostic.
2011 1500 dodge ram 4.7 same problem i gone through 3 ac compressor now im going replace ac condenser you got me Subscribe
Wow thank you great tips I never thought about using a heat gun I like it
Thanks for sharing Eric... Cheers.
Thank you very clear a to z details
Great info. Wonderful help.
Thank u brother. Awsome knowledge.
Great explanation of the issue!
Invaluable info!Thank you
Like #314
Thanks for the video!
Life is a learning curve!
HINDSIGHT is 20-15!
Looks like you're keeping busy.
Eric, you are very intelligent and your video are inspiring and educational. Just FYI, the compressor discharges a high temp, high press GAS. As the gas enters the condenser and it gives up its heat to the ambient air, the gas condenses into a liquid. The expansion device is the dividing point from high to low press. You are correct in the diagnosis and procedures of finding restrictions. Large press/temp difference indicates restriction and will work like a metering device/TXV/orifice. A good practice when replacing compressors is to replace the micro-channel condenser with it. It is impossible to flush debris out of them due to the paralel construction. Keep up the great work and I look forward to your vids.
Yo mamma, your comment around the compressor is correct . Compressor is normally supposed to discharges high pressure hot gas into the condenser. The gas is then cooled by the air blowing across the condenser air, and it turns the gas into high pressure liquid (condensing the gas, hence the word condenser)
Dude u just save me a lot of money and work muchisimas gracias
Fantastic informative video sir thanks bro “
when the compressed refrigerant comes out of of the compressor it's still in gas form, it will only becomes liquid when it's cooled down inside the condenser hence the term. then the cold part in the condenser is caused by the clog. because of the clog, the pressure in the high side is low.. the lower the temperature the colder the refrigerant will be as per the pressure/temperature relationship properties of the said refrigerant.... still good job diagnosing the problem, didn't occur to me to use a temp gun, and i didn't know that there is a relief valve on the compressor. thanks for the added knowledge
Awesome troubleshooting dude!
Well thought out video!
Consider becoming a automotive instructor! You'd be a great one!
Thank you. Learnt a new lesson.
Thanks for the knowledge well explain blessing
Great educational video
Great video man and great explanation 👍
Glad you liked it!
Nice done as usual .
Very informative video
Great video thank you sir
Yes thanks so much . Can you do a more videos on the think diag
Great video sir.
Geez, an AC video on YT where the guy isn't an idiot, what a concept. Now I need to go find your TXV diagnosis video.
Great video.. Love your channel. Greetings from Israel.
One of the most clear and concise videos concerning this subject matter.
Great job , Thanks
Great find and well explained.
Thanks 👍
2007 Honda Pilot EXL the liquid line from the condenser to the evaporator had a kink i couldn't see behind the grille before the service port. This thing has been wrecked and had a serious clown repair it. Thanks for the idea to use the gun.
Now i need to find an obsolete part....
Unless you know of a good repair for splicing the aluminum tubing together.....
Another great video eric
Thanks for the video.
I am facing the same problem like this in my jdm 2005 honda odyssey.
High side pressure line getting cool and sweaty.
Luckily it's still blow cool air.
Maybe i need to change condenser immediately..
The big question now is, why did the condenser plug up? The small bend at the bottom wouldn't have crushed enough rows to cause a blockage like that. That leaves the compressor failing at some point or the desiccant bag inside the dryer coming apart. Both of which will probably cause trouble down the road if the car lot didn't flush the system.
I'm not entirely sure. That is why I recommended that they flush the system out when they replaced the condenser. Thanks for watching!
The last row is on the bottom and was crushed.
it comes in on the top and snakes down.
in ________________________________________
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out ________________________________________|
Exactly how Josh C explained.
This type of A/C condenser has the one inlet at towards the top first row then it loops zig zags down from side to side horizontally until it exits outlet line at the bottom most row which makes sense as it was crushed bent upwards as shown in video.
It circulates differently than a radiator, where coolant entering can go flow in all rows across and it exits flows out all rows on other end simultaneously from all rows.
@@ratbag359 & @Abe Chavez Nope, your thinking of a serpentine condenser. This one is a parallel flow condenser. It does snake down but typically in multiple rows at a time. Pretty much all cars have used them for over 20 years.
Very confidence and intelligent work, (A L A) thanks. Habib Auto all day way from Ghana Accra West Africa
Great AC VIDEO.
Mister AC 😉 nice diagnosis!
Eric “ Estas pero CHINGON” 😎
The "expansion valve" was the condenser! Nice diag Eric!
Yes! Thank you!
Keep these vids coming.
I NEED HELP..
Wow, u a great teacher, i can only wish to meet someone so knowledgeable, to guide me with my AC, right now im in this process to try to fix my AC, a scammer i payed did not finish the job, and took my money, so im stuck, but i must say, im very nervous about doing this my self, im mechanically inclined, but know nothing about ACs🥺