AC is On, But It's Still HOT! Diagnosing Air Conditioning in Your Car or Truck!

For More Info visit us at: 1aau.to/h/cBh/
It's hot out, and your AC isn't blowing cold. What now? Watch this video! Andy shows you several common failures that might leave the air conditioning in your car or truck blowing hot air!
Check out this playlist more more great diagnostics you can do yourself at home!
• Driveway Diagnostics!
For More Info visit us at 1aau.to/h/cBh/
⚠ DISCLAIMER:
While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.

[@Augustprincess24]

You missed a very important part! The AC on Hyundai Tucson 2017 was blowing cold air for 5 seconds and then warm. On and off and I took it to three different body shops and they didn’t know what’s the problem! Everything was working fine except a small tiny thing called: Thermistor! Located at the dash right beside the gas pedal! 36$ CAD and my AC is Icy Cold! Thanks to Google and KZbin that taught me this! Otherwise I would be spending this summer melting down

[@bubbafrie9001]

Thank you I found my issue! I have no ac compressor...

[@12stnumbers95]

It look like you get really baked and tell the best jokes

[@LegoDork]

All of the mechanics I know are super straight edge. Just like your typical chef or carpenter.

[@DerekDTX35]

The small ac condenser fan, under the hood by the radiator, could just be stuck. Easy fix if so! Start your vehicle, open the hood, if the fan isn’t turning then take a screwdriver and tap one of the fan blades to “free it up”. Worked for me. Watch your fingers!

[@dm7622]

I just need a new ride

[@garysteinert8040]

People don’t understand there is a limit to how many degrees an AC can physically cool.

[@louiefranco189]

I like your tip saying that both fans should turn on immediately upon engaging the AC compressor switch..thank you!

[@bornhunter6171]

Yes fuses do burn out on their own & DOES NOT mean something is wrong with the vehicle. They do get old and will need to be replaced at some point 👉 👈.

[@ChIcAnO_gl6js]

Idk what's wrong with mine but in the winter it worked haha but then one day I could smell antifreeze on the inside and now the ac don't work at all

[@danielodor3822]

My problem was low engine coolant. As soon as I added engine coolant to the reservoir and the radiator, my AC went back to blowing cold.

[@1AAuto]

+Daniel Odor Thanks for the feedback!

[@mattmartinez4661]

Could have saved me weeks of frustration in 10seconds had I seen this sooner. Thank you!

[@eroom2087]

I turned my a/c on and I heard a loud noise and the hood blew off the truck and it burned to the ground, do you know what could cause that

[@1AAuto]

+Eroom We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@Coleschonfielddd]

Lol

[@Coleschonfielddd]

@@1AAuto noce

[@sun450]

GREAT VIDEOS,always spot on and very helpful……THANK YOU

[@travissheehan6082]

BLend doors are common too, especially if blowing cold out some vent and not other

[@MrJwyne]

Awesome video. This channel is amazing. Great information. Very informative.

[@ShisuiHack]

Happened to me when I turned AC on,it still not blowing cold,just cool. I went to local mechanic that I need recharge. He said that ac is fine. Checking engine light on later ,I went to check it out, radiator one fan stopped working. I have diagnosis. It's said that I need to change cooling thermostat. I replaced thermostat and radiator fan and still not blowing cold. I went back to local mechanic to let him do the job on my drum brakes. So when he test drive my car,he realized that my AC is not blowing cold when it hot outside after I kept telling him that my car need AC recharge Lol.

[@kristenstillstanding7084]

My AC is blowing out hot heat. 2014 Nissan Altima sv. Where are you located? I need help getting my AC back working.

[@bronco4life]

Nothing said about the compressor staying on all the time and does not get cold the low pressure line does not even get fresh,,.

[@deborahanderson897]

hello there, I have a 2004 Cadillac Escalade esv and hot air is blowing on the passenger side...HELP!

[@1AAuto]

check out this video. It will help you out. kzbin.info/www/bejne/aprJgWx5n9Cnl6s

[@islandheehee]

If I added Freon and it only worked for 2 weeks, what could possible be the reason? And does this mean those diagnoses in the video won't be necessary?

[@ianrube6005]

Nice vid! My ac doesn’t work during a hot humid day when i start my car, but after i been driving it on the freeway its start working again, help pls

[@Matrix333-o5e]

Don't forget to check the temperature blend door actuator it could be stuck on heat because the door can get stuck and the car will only blow heat.

[@claytonsimplot9554]

Everything works on my truck. The coolant must be leaking,when I charge it the compressor works,then it slowly quits cooling. A friend said to look at the low pressure valve. He said the needle valve could be leaking. How do you check and change it?

[@scubadoonorway4960]

Hey my Ford transit Connect 2014 is only coming hot air from air vent and ac not working to. What shall i start looking for the problem. / Tom

[@JaceD4V1S88]

in 2010 i bought a 94 previa, didnt have ac, bought new compressor, condenser, drier, all expansion valves, evaporator, and tubing basically replaced the entire thing with help from a shop where i knew the owner. cost me 1200 plus parts, best investment i ever made, still have the van, it started not blowing as cold 12 years later so filled it with one of them cans and it got cold again. has been fine since. ill never own a car with non working ac.

[@bertschannel3795]

Literally an issue I’m having now. How well does the A/C run in high humidity?

[@amjathkhan2004]

Hey everyone, My car optra/nubira/ lacetti is 10 years old. For about a year until a month back the AC performance sucked during daytime and was extremely good at night. But for a couple of weeks, it only blew hot air during daytime and nighttime. So, I took it to a car AC repair service. They checked the compressor and said it's good. But they changed the compressor control valve and refilled the gas. And that made the performance of AC like a new car. But all that's only for two days. Now, it's back to blowing hot air 😢. Could someone please tell me what the problem might be? Thank you for your help.

[@ZachArmstrong02]

Haven't had AC in my Jeep for years too expensive to fix ended up bypassing the AC compressor

[@rebavillarreal6551]

My ac blows 1/2 and 1/2…….. 2 vents blow cool and 2 vents blow warm……. :(…….

[@KyIntervention]

Okay what if it’s blowing warm air and everything checks out?

[@leopagcaliwagan75]

My corolla A/C is working fine, the problem only is it takes 30 minutes or more before you can feel the cold air inside even I set the temperature at 65F. What could be the reason?

[@jamesbutler5518]

My air conditioning. Compressor is kicking in and out everything seems to be working right but it takes 30 minutes to an hour before it starts cooling. What's wrong with it

[@backbeatben]

do only thing I learned is that I need to see my mechanic to fix this! 😂

[@roadshowautosports]

Thank you! I have a small recovering machine but never used it before, so I need a Freon tank or does it have one internally to recover the Freon? My car ac was working poorly a year ago and after changing pressure sensors, and adding Freon, I found out my fan wasn’t working. On a Lincoln Towncar there’s no ac fan as it’s only one fan so it started overheating the engine. A week or so ago, started working poorly again, I checked the amount of Freon that was a little bit low only so I added but went to far and had to remove a little, after that it blows hot air inside! The low pressure aluminum pipes are hot as well. I’ll be checking the fan clogged this weekend but would appreciate any insights here! Thank you folks!

[@zofa300]

Nice Video! If I want to hook up the AC manifold to your car to do some measurements for the pressure, should I purge the blue and read lines from air once I connect them or no need as the air will not get into the system? please clarify thx

[@scaryjerry4665]

If a belt pops off you got bigger problems then your ac not working 😂

[@robertsereno]

Why does my ac blow cold air in the morning when it's not so hot outside than in the evening when it's hot with temperatures up to 95??? Can you help me out

[@1AAuto]

+@robertsereno We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@sajithabeywardena6640]

The AC on my Toyota Mark X works at certain times only. At certain times it stops giving cold AC but at other times it’s all ok. Any idea on the fault?

[@1AAuto]

+Sajith Abeywardena We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@Pogomobile]

Also, with Mitsubishi's like my boyfriend's 2020 Mirage, for some stupid reason the venting for the whole system goes through the glovebox. We found out the hard way that if you leave napkins in it, they will get sucked in and clog the system.😅

[@ravindudilhararavindu8891]

good video

[@macrolosses]

Symptoms: marginally lower temp when AC is on. The high pressure line is warm to the touch while in operation. No condensation on the ground while in operation. The system still defrost the windshield. What could my problem be?

[@pgmagiccolors]

thats the main reason it wont go in..,yeah bring it to a professional to deflate it then you get charged hundreds,,for something you could of done yourself

[@Msleelee9487]

I have a 2010 Hyundai Tucson and I haven’t had air in 3 years and we had triple digits in Texas I recharged it in 2020 after covid hit I was changing parts still blew warm when I charged it was cold air 3 months later it was blowing warm and the fan would come on when I started it and stopped after I turned it off now the fan doesn’t come on I’m gonna check the relays and fuses again 🤷‍♀️ I would like to sell this car but I want the ac working I know that’s important to have I like to roll the windows down I didn’t use the air unless I had passengers I will keep troubleshooting and figure it out😝

[@RyonLay]

91 xD and here we are at 120 hell nah 😢

[@19Blackskills97]

My fans aren't kick in for some reason. They only start to work when the engine reaches its operating temperature to cool it down

[@ramirov8625]

Should I remove the front bumper? I feel condenser is not getting enough air 😅😅😅

[@ceciliachang5735]

So i found my 2010 honda crv ac not blowing cold. I check the fuse but cant tell if its bad or not. I checked the compressor its still spinning. I put freon and it went straight to red for instructions. Ehat should i do?

[@jamesk1801]

I have a faulty AC and dont need it and dont want to repair it. It is constantly running, I can't switch it of. Can I dissable it by removing the AC fuse?

[@moviemania3970]

Pls help my Santa Fe 2015 is cooling only at night and at day time while car is not running it blows hot air and while car is moving it starts cooling not that much cool like night.

[@froggydoggy9579]

Can you replace JUST the compressor? If it needs to be , is there such a thing of being able to just replace that and have success?

[@kevoybryan6056]

My ac only works when u take the rely cover off and touch by hand for the rely to make contact, no work by controls in car

[@msmasaki7761]

My ac is working exactly like yours that’s the problem

[@Hakutara]

0:00 - 0:08 Bruh bruh bruh! Our air conditioner not working :(

[@MrPotScraperz]

My Evap hose was Cold I think it didn’t have enough refrigerant

[@anibalvargas6629]

My ac only blows cool air at idle, but not cold when running. What should be the cause??

[@TeamDarnet]

Wowww

[@maherahmed1977]

I have a 2015 Grand Cherokee, sometimes it is working sometimes not

[@DashCamSerbia]

AC is a must!

[@1AAuto]

+Ауто камере Србија / Dash cams Serbia Thanks for the feedback!

[@kehneenmaccormack8637]

Dawg, why was the underbelly of the truck so rusty😭

[@norfolkdude0971]

I had to replace a leaking accumulator on my 2004 Ford Crown Victoria LX and upon disconnecting the upper AC line to the evaporator core, I had to pull really hard to disconnect it. When I charged my AC with the machine a mist of freon sprayed from the evaporator core housing around the top side line. Does this mean I broke the seal around the line or did I crack the evaporator core inside the housing? Just need to know before I replace the whole evaporator core. 🤦🏻‍♂️

[@Candy097.]

Hey guys I need help why does my heater work but my cold air doesn’t it lets out air but it’s only hot or doesn’t feel like nothing can somebody help?

[@1AAuto]

+@Candy097. We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@ultramanxk7]

👍

[@georgembewe2339]

Car aircon when it's not moving it's getting cold but when it's moving it's getting hot

[@intelin123]

My 2012 scion xb takes like 5 minutes to cool

[@chuck889]

Ah, so that condenser fan should be coming on immediately when the ac is on and for me I noticed it's not most of the time. The ac had only been working when driving on highway so I'm assuming that the only time I'm getting cold ac is when the fan comes on for the radiator?? sounds like a relay or fuse maybe as I just replaced the fan resistor. strange thing is, the fan came on right away last night and blew cold air when I really didn't need it, but today at noon the fan wouldn't come on, so it just blew warm air until I drove around for about 10 mins, then the cold air kicked in quickly. I'm hoping there's a fuse. Thanks for sharing the knowledge

[@1AAuto]

+Cliff Pok Thanks for checking us out. Shop for high quality auto parts on 1AAuto.com: 1aau.to/m/Shop-1AAuto-c

[@tonycook7016]

What if your blower is blowing but the switch not light up

[@joelatiga235]

Sir thanks a lot for very useful information. God bless.

[@lalalasvegas1]

Why would the pressure be building? Please help

[@HaloGTMaster94]

Nice 👍

[@Smashachu]

That steering wheel was incredibly shiny.

[@iamfinally]

my ac doesnt blow cold on 90 plus day after sitting in the sun but at night it blows cold, why is this?

[@RMS-gl6wl]

Most likely low on refrigerant.

[@410bmb]

I have Freon just blows hot ass air

[@WillieBriscoe-ff3rg]

Simple to the point..great job

[@miketurpin6687]

Not sure if my ac clutch is engaging. 02 GMC SIERRA HD 6.0 L. Do you have a way to test to see the clutch engaging and disengaging? Also, do they get stuck sometimes and need a little rap to get freed up?

[@mobileair6416]

Look to see if the pressure plate is being pulled into the pulley. You can do it manually if you have the proper tools and don't ruin the coil.

[@zeta6798]

Cua do le cambia los frenos a tu carro tienes que abrir el tank de brake oil?

[@wra7h]

My brand new car ac isn't working

[@jameslester3861]

Lot of salt rust on those vehicles.

[@meatballmagoo6134]

Where are you California 🌈🌈🌈🌈

[@matthewward5849]

My ac clutch fuse keeping blowing. Not sure how to go about fixing this problem.

[@1AAuto]

+Matthew Ward We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@matthewward5849]

@@1AAuto Alrighty. I’m gonna tinker with it this weekend. If I can’t fix it then off to the mechanic I go. 😖

[@TonyStark-lp6qf]

My ac compressor in my 2003 Cadillac Cts is bad can you guys do a video on replacing it.

[@1AAuto]

+Tony Stark We're always cycling through common cars. We'll add this repair to our list! 1aau.to/m/Shop-1AAuto-c

[@TonyStark-lp6qf]

@@1AAuto thanks guys

[@patriciamarin6137]

Excellent explanation

[@TheFoozleSnorf]

Thanks John malkavich

[@1happygal2bhere50]

Thank you

[@pgmagiccolors]

another secret is the car shops dont tell you the same place you add the frion has a plug and you need to decompress hot air out of the engine similar to deflating a bike tube tire..then you inject the frion...so now because theres no pressure in there it will circulate

[@acesy187]

this channel is really informative. Thanks! Keep it up!

[@1AAuto]

+Ace sy Thank you! We love empowering our customers and showing how to perform DIY auto repairs with our high-quality auto parts. 1aau.to/m/Shop-1AAuto-c

[@tomhenson915]

Thanks for the video you guys are great 😊

[@angelinalozada189]

Thank You.

[@thelightknight4811]

SteveO? Lol

[@Scotty-Z70]

thank-you

[@alexh.4254]

Cherry

[@NaghmaAli-o7u]

Tnkz gd job ❤

[@simonchau8675]

Love these videos have been learning alot from you guys. Keep up the great work!

[@ronaldalex4091]

Good video 💪🏾

[@shamanbaray6327]

This dude is awesome! His videos are really helpful and good takes👍 Keep up the great job A1auto

[@user-ic7mv6bj4w]

Thank u!

[@zeez9053]

Great info 👍🇬🇧

[@dannyhernandez5626]

Playing with my emotions, i sure thought you would of given examples of that GMC acadia because my acadia ❄ button for cooling blinks 3 times and no ac. Make a video on that with examples.

[@rreinhard43]

Still confused, can you do a video for older Honda Civic? I had my compressor, dryer orings replaced mid May and ac. Is no longer cold but only cool

[@serv2970]

91 dgree summer? I wouldn’t even touch AC button😂

[@Failureisnotanoptionever]

They are so cute! This was lovely