HOW TO FIND A CLOG IN YOUR CARS A/C SYSTEM

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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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Due to factors beyond the control of Advanced Level Auto, I cannot guarantee against improper use or unauthorized modifications of this information. Advanced Level Auto assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. Advanced Level Auto recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of Advanced Level Auto, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Advanced Level Auto.

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Опубликовано:

27 июн 2021

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Комментарии : 314

@ADVANCEDLEVELAUTO 3 года назад

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!

@MattyEngland 3 года назад

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.

@ADVANCEDLEVELAUTO 3 года назад

Exactly! Thank you!

@CesarCadevilla 3 года назад

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!

@713jtmechanic8 3 года назад

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.

@billrimmer5596 3 года назад

@@713jtmechanic8 Is R22 called Freon also? I’m not sure. Thank u!!

@frankshafer3655 Год назад

As a master technician myself, I think you did a great job on this video! THANKS!!

@1ZZFE 3 года назад

U r one of the straight to the point, no-nonsense, car repair guy I follow on RU-vid. U r good!!!! I can easily follow and understand what you've just explained here.

@ryantidwell9608 Год назад

Great diagnosis! Exceptional job of explaining how a vehicles a/c works & the inner workings of the refrigerant process!

@aqua1476 Год назад

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!

@htownblue11 3 года назад

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.

@BurmaJ Год назад

Wow, an A/C video that I actually understood and learned something! Thank you for the clear presentation and explanation. 👍

@DogONRedRocket Год назад

Had an AHA moment when you explained the cold discharge line temps and blockage! Thanks a ton man!

@akhtarkh 3 года назад

Didn't know that there is a pressure relieve valve that vents like that. Good information

@dans_Learning_Curve 3 года назад

I didn't know either! Learned something!

@abechavez1876 3 года назад

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

@DieselRamcharger 3 года назад

@@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.

@rithwikj Год назад

Great video! thanks for explaining it so well, I learnt more from your video than I did scouring the web for the past 2hrs

@abegut3911 2 месяца назад

By far the Best Explanation I am working on a Peterbilt truck and it’s doing the same thing…. Great Video 👍

@aaronmcdonald4944 10 месяцев назад

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

@repairitdontwreckit4257 21 день назад

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

@vinces8974 3 года назад

You are a very very smart guy Eric ,thank you For the great explanation of how the air conditioning system works

@rafatorres1420rt 3 года назад

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

@davidweber5922 3 года назад

I love watching your videos. Once the RU-vid algorithm starts pushing your channel, you’ll be past a million subs.

@met1589 3 года назад

Eric you are a very smart mechanic. Well done.

@matthewbaxter7502 Год назад

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. 👍👍

@DLMorel 3 года назад

Eric, your local JC / tech school needs you to teach

@vinces8974 3 года назад

No question about it

@MattyEngland 3 года назад

I agree, you're a great teacher. You should look into it. Good pension and plenty of holidays. 👍

@Xanderfied 3 года назад

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.

@runsbetterthanitdidgarage.626 2 года назад

He is teaching. 👍 He probably doesn't get paid too well, but he's putting in the effort to help others learn.

@baljinderdosanjh9532 10 месяцев назад

You explain everything in such a short video, very informative. God bless you. Thanks for sharing.

@gianfrancoa 3 года назад

Another compressor that didn't need to be replaced and another costumer that paid for the inexperience of the shop. Great video Eric

@ADVANCEDLEVELAUTO 3 года назад

Luckily this vehicle belongs to the car lot. It is used as a loaner or rental car.

@creamofbotulismsoup9900 3 года назад

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.

@DieselRamcharger 3 года назад

where do you think the blockage came from? a failed compressor and a system that wasnt cleaned out.

@neilmurphy845 3 года назад

@@DieselRamcharger yes exactly your meant to replace and flush the whole system out that's what they get for being cheap

@DieselRamcharger 3 года назад

@@neilmurphy845 yup. running a solvent flush isnt even expensive.

@djosbun 3 года назад

A very informative video, Eric! Many thanks.....stay cool down there!

@gezdipz5425 3 года назад

Another great video,surely the mechanic should have done his homework like you did keep up the great work 😁

@robertmedina6875 3 года назад

Thanks Eric for the a/c video! I watch every video!

@ADVANCEDLEVELAUTO 3 года назад

Awesome! Thank you!

@keithcooper385 2 месяца назад

Finally, a video that covers this issue!! Thanks so much!!!

@holoxfauxfecs5651 11 месяцев назад

I love the drawings to explain how the AC system works. They helped me a lot!

@gabrielsaldana8913 2 года назад

Another excellent diagnosis and very clear explanation, Good Job! 👍

@samd410 3 года назад

The pictures you used were good. you are an excellent mechanic

@clinte14 3 года назад

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).

@ADVANCEDLEVELAUTO 3 года назад

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!

@bigdaddymak1439 3 года назад

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!!

@isettech 3 года назад

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.

@josearrvizo359 11 месяцев назад

2011 1500 dodge ram 4.7 same problem i gone through 3 ac compressor now im going replace ac condenser you got me Subscribe

@ibkoool1 3 года назад

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.

@derofromdown-under2832 3 года назад

Great find Eric... WELL DONE!!! 10/10

@glennallen7129 3 года назад

Thanks for the video! Keep them coming!

@Elcapulove 2 года назад

Good afternoon family. Again. Thank you very much for the valuable information and for your time ⏲️ 🙏👍🏼👍🏼.

@arthurfricchione8119 3 года назад

Eric another excellent informative video. The visuals are a great addition. You and family stay safe and well Artie 👍😊

@ADVANCEDLEVELAUTO 3 года назад

Thanks 👍Glad you enjoyed it!

@analazcano6475 Год назад

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🥺

@rodp5919 2 месяца назад

Thank you very much Sir!! Very informative and simplified teaching!!

@dans_Learning_Curve 3 года назад

Like #314 Thanks for the video! Life is a learning curve! HINDSIGHT is 20-15! Looks like you're keeping busy.

@malibuStroker 3 года назад

Great video and great explanation! Thanks for taking the time to share with us.

@stevewheatley243 7 дней назад

Good video bro. Im having problems at the moment,and you gave me good info.

@fredsalter1915 3 года назад

Great explanation, sir! Yet another super video.

@spelunkerd 3 года назад

What a great demonstration, of the compressor saving itself from overload by releasing refrigerant. I've never seen that before.

@smcool100 25 дней назад

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.

@Garth2011 3 года назад

Good description on the blockage findings. Love those temp guns...have a few of them and one is for the BBQ !

@ADVANCEDLEVELAUTO 3 года назад

Great for grilling and smoking meat! Thanks for watching!

@yomomma9070 3 года назад

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.

@jaycart5105 Год назад

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)

@arturozarate1752 Год назад

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.....

@gregjones8501 3 года назад

That’s crazy! I have two of the same vehicles in my shop at the same time!

@delcorick9967 3 года назад

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

@rayb2078 3 года назад

Good information keep up the great informational videos...

@ruslinyatim8508 6 месяцев назад

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..

@4wheellife447 3 года назад

Thanks for your thorough explanations❤️

@johnnydeep1599 3 года назад

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.

@MrJdsenior 11 месяцев назад

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.

@danieldarden2857 11 месяцев назад

Your video helped me understand a lot!! Appreciate it!!

@sulemanhabib1743 3 года назад

Very confidence and intelligent work, (A L A) thanks. Habib Auto all day way from Ghana Accra West Africa

@jmtolentino6397 Год назад

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

@sarahsmith4617 2 года назад

Excellent video! Thanks for sharing.

@fatbastardwithabeard Год назад

Nice video, great info. Thank you for sharing.

@29auto30 3 года назад

GOOD CATCH! and great explanation.

@justjim2693 Год назад

Great video and great troubleshooting. Thanks.

@PistonShack 3 года назад

Straight to the point as usual. Thanks Eric!

@jamesberlo4298 2 года назад

Thats what I wa doing all day today, Thanks this helped a lot !

@michaelherbert8213 3 года назад

Thanks for sharing your knowledge.

@nathancollins5822 Год назад

One of the most clear and concise videos concerning this subject matter.

@edwardthayer9386 3 года назад

Great Job Eric! I bet someone tried jacking the van up under the condenser and damaged it!

@miket1322 2 года назад

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.

@stefannyandrewragay7750 Год назад

Thank you for the explenation. Very informative.

@jaydhar2130 Год назад

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

@kingcobra-gaming2341 19 дней назад

my ac is having the same problem it only works at idle what was the cause of your problem?

@steveedwards1072 3 года назад

Fast and accurate. Priceless.

@arturozarate1752 Год назад

Good diag bro. This helped by checking temps with a gun. I hate getting a relief blast to the face!😂😂😂😂

@dans_Learning_Curve 3 года назад

Well thought out video! Consider becoming a automotive instructor! You'd be a great one!

@pablolopez973 3 года назад

Thank you for sharing your videos.excelent.👍

@arthurmiller8336 Год назад

Wow thank you great tips I never thought about using a heat gun I like it

@johnmiley458 9 дней назад

Great info. Wonderful help.

@IAMNOSLEEP 3 года назад

Thanks for sharing Eric... Cheers.

@lielyncher755 3 года назад

Thanks , you know the pros are out here finishing your sentences, thanking God for the IR temp guns and wondering why the hell that condenser ain't leaking.

@LockheedStarliner 2 года назад

Awesome troubleshooting dude!

@markcoburn3214 Месяц назад

Very informative video

@iebgotgame8792 3 года назад

I hoped you lived in my state so you helped with my ac system This mechanic told me to replace my AC compressor but I don't believe that's the problem

@isettech 3 года назад

We added a thermal camera to our toolset. Restrictions in such items as a filter drier show up as a change in temperature due to the flash gas produced. The bubbles in the liquid line greatly reduce capacity.

@sagifern4444 3 года назад

Great video.. Love your channel. Greetings from Israel.

@elvinmendoza5978 Год назад

Dude u just save me a lot of money and work muchisimas gracias

@rickygonzalez5281 3 года назад

Great Job Erick! 👍 I dealing with 2014 Altima 2.4L and I can't find the orifice tune...I replaced the expansion valve and the dryer and I am still doing with high pressure on the low side..please help me

@freddyhollingsworth5945 29 дней назад

05:55 I agree the AC condenser is the cause of the restriction, but I bet too many of the the micro channels are clogged with debris from the previous failing AC compressor... I really don't think that one dent in the bottom of the condenser can cause the whole condenser to "clog"? Great video!!!

@lionsofwar6851 Год назад

Thank you very clear a to z details

@onurgns Год назад

Great video to made me sure. 100 degrees outside low side was normal but high side was 150 as low. Normally it should be more than 260-290 . I guess my macanic is right about condenser tho

@cluuck4617 3 года назад

Great explanation of the issue!

@thestork8386 Год назад

Great video thank you sir

@kevinemanuel5987 2 года назад

Invaluable info!Thank you

@GeneG-wk2mz 3 года назад

Yes thanks so much . Can you do a more videos on the think diag

@appelsinnadurai Год назад

Thank you. Learnt a new lesson.

@mercedesfriesland 3 года назад

Mister AC 😉 nice diagnosis!

@matthewpeters325 3 года назад

Thank u brother. Awsome knowledge.

@JuanRodriguez-iz4pu Год назад

Great job , Thanks

@jaydrider8871 3 года назад

Great video

@CHIBA280CRV 3 года назад

Fantastic informative video sir thanks bro “

@senthikanthia1657 2 года назад

Great educational video

@76ameer 3 года назад

Nice done as usual .

@swmovan Год назад

My '95 Safari would take a charge, and cool for a while. When I would shut off the engine, I would hear that whoosh. I haven't messed with it much, as I also have a car with good A/C. I was thinking maybe the accumulator was plugged up. I'll have to check it out as this video showed.