Great video Danny, a polite suggestion is checking the cabin air filter. I had my Acura's dirty enough to freeze the core and naturally stopped cooling. Swapped it and worked fine.
Thanks for the help Dan, just got a Civic '11 and they said the AC hadn't worked. Parts still spun, bought the relay plugged it in and it worked like a charm!
This saved me an arm and a leg. Had a bad fuse. Which obviously threw off the ac recharge reading. Replaced the fuse, recharged the ac and it works! It isn’t ice cold but it’s getting colder!
So my ac was blowing warm on idle but once I would go it would cool down followed this man’s first steps and turned out my cold to heater actuator was just stuck a little before all the way cold flipped it to hit the back to cold and fixed the ac issue lol what an easy fix
How did you fix it exactly? Im having the exact same issue (coolish air blown at idle, alot cooler while moving) my blend door actuator moves when I change the vents from face, to feet, to defrost.. all of that. But it doesn't move at all when I change the temperature from cold to hot, and back and forth. But it does change the temperature.
Great video, tha tip of pressing the buttons 1:03 down and turning the ignition helped alleviate some stress, no warning lights. Then I swapped the relays 6:39 as you suggested and it was a dead relay, so I bought a new one and AC is up and running. Thanks Danny.
@@dannysdiygarage When I press the buttons down and turn the ignition, the recycle light flashes. So, what should I do? My 09 civic is blowing warm air even when I turn AC on.
@@dannysdiygarage I further watched to the end of you video and checked again, my actuator blend door does not move at all when I switch cold to hot back and forth. Let me study how it can be fixed.
can't wait to sit in 48F lmao😁 just diagnosed it using your method and its definitely the expansion valve, although it wouldn't hurt to swap out all the fuses on mine
Great video I had trouble with my 8th generation civic AC cooling properly. It was the actuator motor that controls the air temperature. Once it was replaced with a Honda oem part the problem was solved
Good sir one thing you didn't mention is sometimes it could be the in cab aii filter behind the glove box, if it's covered in dirt and leaves this will restrict the air flow as well. Awesome video in detail 👌!
Thanks so much for this informative video! I had watched other videos suggesting the A/C clutch relay might be the problem (it was), but I didn't have any way of testing the theory out without ordering the part first. I'm just not knowledgeable enough about cars to randomly try swapping things out and around without worrying I'm going to cause some sort of catastrophic failure, so I rely on people like you to give me the confidence to try this stuff out without worrying that I'm doing something wrong. It was your suggestion to swap the rad fan relay with the A/C relay that helped me pin it down as the definite cause for my A/C issue. So thanks again, I appreciate the work you do!
So a guy was trying to help me and connected the freon can but nothing would go in It seems to me that Honda has the worst air conditioning system ever built. Myself and both of my sons have Honda vehicles with dead air conditioners. It never happened in my Toyota's before
I bought a used Honda 3 months ago that had ac issues. They had to replace the compressor. I also never had any ac issues with Toyota. After this car I'm going back to Toyota.
Hey there my friends I want to tell you that my neighbor was mechanic and he did the so-called Freon recharging and brought it all back to life. So that has changed my opinion so much
@@jamesbondaygeehad my 2010 civic for 10 years now. Did end up having to replace a Freon line once and had to recharge freon about 3 times. But other than that, it's been pretty reliable. Cools just as fast as most modern, newer cats.
Thanks for the video. Towards the end of the video I was thinking "no wonder why mechanics get paid so much! That seems like a a lot of work. My 2016 Civic just started blowing warm air. I may take it to the shop and see how much they quote me to get it fixed.
thanks! I think i'm still gonna go to the rip off garage but at least I understand this stuff better thanks to you. my a/c will get super cold but unfortunately it takes about 1/2 an hour for it to happen and most of my driving is 20 min or even less - doesnt' ssound like long but like you said 90's gets hot quick
Thanks U. This is one of the best videos I have seen on diagnosing problems. I am a novice so this was helpful. Couple of suggestions that might seem dumb to experienced follks. CONTROL HEAD TEST: More on codes. What they mean / look like. Point out turn key all the way without starting. ACTUATOR BLENDER TEST: Where located? Engine on or key just turned fully? FAN TESTING: Engine on or key turned all way only? What fans/location A/C RELAY TEST: Show compressor on/off. FREON TEST: Which port? I saw two. Thanks for this fantastic video. Your good teracher adn use a clear voice ❤❤❤
Understood, I plan on going deeper into diagnostic on each code, videos like this take weeks to produce, there’s the research, scripting, then trying to explain in a way that the novice can understand and feel comfortable performing these tests, not to mention with tools that are available for the DIY home mechanic, shooting the video and editing my goal is to have next summer a complete AC diagnostic video, other than this AC video, many of my in-depth wiring diagnostic videos that I spent weeks on haven’t done very well, which tells me my viewers are wanting a quick fix, if not they’re taking it to the shop, the codes are in the description if you haven’t seen them, thanks for your feedback it’s very helpful
@@dannysdiygarage I think few people appreciate how much work goes into making these videos. I followed your process. HEADER TEST: 👎 result is light blinked 4 times. Now I have to figure out what that means AC RELAY: New relay did not engage 👎 🚫compressor (clutch) FAN TEST: ✅ VISUAL INSPECT: ✅ ACTUATOR BLENDER TEST: Don’t know where it is. So unless I can figure out what the 4 blinking lights on header test are I am guessing needs new compressor which probably means whole new system 😢😢😢😢
My 2013 civic just started instantly blowing warm on my way home, went cold for 30 seconds again and back to warm. Owned it for 10 years 110,000 miles and this is the first issue I’ve really had with the car lol. It’s also extremely hot outside right now and one of my suspicions is the system kicks off when it’s too hot.
@@dannysdiygarage not yet, maybe tomorrow actually. What ended up happening was the red 12 volt wire rotted off the electromagnet side of the clutch. It was barely connected, thus an intermittent weak connection and sometimes it would work sometimes not. I ordered a whole new clutch assy with pulley, clutch, electromagnet for $40. The replacement process is straightforward. Compressor doesn’t need to come off, Freon doesn’t need evac or recharge.
All video is prefect stap by stap is working good ..normally how check the working AC ..this is very important in your knowledge. . Recently I was worked my honda civic automatic (Ac work...) mhachanic told me your ac is not working(I am living in uae ) I asked why?? He told me ac unit is not working and GAS problem. You go and perches the new Ac with vlues and relye. .but I inses (total parts experience 1100 to 1200 Aed) w/o labour charges..I told any opinions? He is intelligent (from pakistan ) Yes I have solution. .he told me I try my best ..and he cleaning the Ac by presher and fill compresor oil in Ac and new Gas filling and fillter change. .my Ac is good working and best performance and setting half and helf 3 to 4 points only and chill cooling. .and I save my money and time. Total amount with labour only 200 aed....I AM very happy and Ac working good (that is true)))) recently 6/7/24... (that is posible? ???? Plz reply
Amazing video. All clear. My Honda 07 Lx It makes a short circuit when removing and installing the air conditioning fuse, and it seems that the fans are going to turn on and it turns off, the compressor also does not turn on, I already checked the relays and if they work, also the internal control unit.
Thanks for making the video! Was hoping it would be the easy relay fix, but I'm now thinking it's the clutch because I've seen others mention the thing about heat causing it to stop.
Danny help me out. My AC works and the clutch engages and disengages like its supposed to for 10 minutes then it just quits and dont engage again. Does this sound like low freon? I tried recharging it with freon a while back and i tried the fuse swap nothing. Everything else looks fine like u mentioned but i don't know what to do. Should i try to recharge my ac again maybe i didn't do it right??
I had problem with 2007 civic where clutch only engaged sometimes the hotter it got outside the less likely it was to work so we took ac clutch plate off through wheel well it is a common problem and took out one spacer shim washer and cleaned rust from back of clutch plate with wire wheel the few thousands of the shim had it working perfectly after we put it back together and it has worked for years since then
Hi Danny thank you. You are a teacher. I changed the relay because the AC was intermittent in my civic 2008 then the odometer cannot be modified and also the AC continue intermittent. Advice please
Hi Danny, thanks for the informative videos. I did the test on the head unit on my 2009 Honda Civic and the light was flashing 4 quick flashes repeatedly. What does that indicate? My ac doesn’t seem as cold as it should be. Thanks John
Danny, is there any danger in adding Freon if Freon is not the issue? I suspect that is the issue with mine, but I do not have a thermo to test the before and after. Is there any danger in adding some Freon and then checking if the AC blows cold after? Thanks!
Yes, if you overfill the system it will cause more problems for you. If you're able to,Buy a gauge to test it. Better to be safe than sorry. Ac's are such a blessing and for me A complete necessity. I no longer have a thyroid soo it's no beuno not having AC right now. No one can pin point wtf is wrong with mine so I'm trying to do it myself lol. Ohh ohh get a gauge that shows you BOTH the high and low side! I hope you get it figured out❤
So I have a little bit of an odd issue. When I bought the car the ac would not blow as cold at an idle but would blow very cold while driving. Now it consistently blows much warmer regardless driving or not. The clutch on the compressor engages. Both fans kick on. And the dummy gauge reads that it has refrigerant in the system. I’m thinking either blend door actuator or possible the expansion valve. I already pulled the cabin filter and cleaned it out.
Hey Danny, what if your hvac system only puts air out on the dash and not out defrost or floor, Regardless of which zone is selected? Just noticed my 2010 civic has this when trying to defrost I selected defrost and air continues coming from dashboard vents
My 2011 CRV ended up having clutch engagement issues due to wear and tear increasing the spacing between it and the compressor. Removed it and removed a spacing shim to reduce the gap back within spec and now it engages and blows cold!
There are 3 or 4 shims in there of different thickness. The air gap recommended is 0.35mm to 0.65mm (about .014" to .024"). Removed 1 or 2 that give a recommended air gap between the clutch plate and pulley.
not sure if you experience this situation I am currently having on my civic aircon.After driving a while longer with AC on turned at the lowest temperature, the ac starts blowing hot air, it literally just heats up instead of just not blowing cold air. with AC on putting it to low temperature cant defog, now I can only use high temperature to defog. It does has compressor clutch engaging all but blow wrong temperature. what component do you think it could go wrong? The ac blows normal cold air varies from different temperature I set, most of the time while the car has been driven like the first 15-20mins after a certain time, that symptom starts.
I think this video needs to add changing out the fuse and relay. That fixed my problem because I saw that the clutch was not engaging when I turned on the A/C. There's no problem with the fan or the system holding pressure.
Hi danny, I have a 2008 civic lx. The AC will work when at night time, AC will work for the first 5-10 mins of driving at the hot day then it will start not blowing cold air. What can be the problems there and I have recharge the AC.
Correct me if I’m wrong but when filling the low pressure side are you not supposed to keep the can upright and 45 degrees max to keep liquid from going into the low side? Can’t compress liquid, right?
Hey Danny. I also have a 2009 Honda Civic Hybrid. I have a digital thermostat temp gauge. When holding down the recirculate and rear defogger for a few seconds my display spelled out AC. My control head does is not change the direction of the air and it’s also hot air and not blowing cold. Any ideas?
Question: 07 Civic EX. A/C wasn't charged when I bought it. I was told it just needed freon. Bought a charge kit from Walmart. Put it on the low pressure side to change it. It was empty. Turned everything on high/max, pulled the trigger, clutch activated but the gauge shot to the red/full/danger zone within 3 secs. I know it's not full. What do you think?
Danny - I didn't get any codes from the control panel at 2:09 in the video. At 2:26 in this video, the 2nd mode/button from the left on the control panel is NOT working properly. This is the button where there is an arrow pointing to the face and an arrow pointing down to the floor. The light comes on OK, but the air is ONLY coming on at the bottom toward the floor, NOT at the top toward the face. I did notice that if I select the 1st button, with the arrow to the face, and the 3rd button with arrow pointing to the floor separately they both work. What could be the issue?
Well you're over 10,000 subs. So mechanic filled with new freon and the A/C got cold, but a few days later it was blowing warm air. Mechanic did not detect leak. Clutch kicks on. Your thoughts?
Gotta look at the gauge, the gauge will help diagnose, does the compressor cycle a lot or stay on? I have a few videos on ac and videos on ac fans also, check them out
Very high quality made video, thank you so much! I’m curious: I believe our ‘09 Civic needs a new compressor clutch. If i’m not mistaken, the compressor clutch SHOULD be spinning once A/C is activated, correct? Ours is not activated with A/C on and is blowing very warm air. It will only work for around 10 minutes at the start of everyday - consistently. Curious to hear yours or anyone’s thoughts.
The ac is activated when the switch is turned on and condition are met, low Freon will cause the clutch not to activate also, check out this video also ruclips.net/video/i94Bv8KaVzA/видео.htmlsi=T2czxY_4fbN0ZBe9
What are your thoughts on hotwiring a switch to my dashboard in order to get my ac running. It’s an old car, ‘96. The ac works, I just can’t get the compressor to engage no matter how many parts I replace. No one can figure it out. I’ve heard of people doing this. I understand that this could kill the compressor, but if I cycle the switch on and off, maybe I could get by. What do you think? Thank you!
I would not do a switch, I would spend more time to diagnose the problem, I don't know what diagnostics you have done, but there is a Thermal protecter in that circuit, should be somewhere left front corner of the engine compartment, two red wires going to it. check that
@@dannysdiygarage. Thank you for your timely response. You give good advice. I was blessed to find a video about my same vehicle with the very same problem. It turned out to be a burned AC control panel. I removed mine today and immediately knew by the smell that I have a bad unit. It was the same odor that I had detected just minutes before it stopped working. I’m getting one cheap tomorrow and it swaps out extremely easily. If by some strange circumstance anyone owns a 1996 Nissan Quest/mercury Villager, and has tried everything without success, just know that the head unit is trouble prone and hard to diagnose because it still functions in every way except for the AC on button which is responsible for engaging the clutch. However, the light illuminates when depressed which makes one believe that the compressor is getting a call to engage but not so. Hopefully this helps someone.
Hi Danny, great video and wanted to ask for help. The thing that has me stumped is when moving the temp. nob, the blend door doesn't move but the temp. still changes fine. I'm having an issue when I'm driving more than 30 min, air stops coming out of my vents but I can still hear the blower motor and it sounds blocked. Blend door moves fine when switching through modes. And no codes from control
I need more information to make a educated guess, but here is something that comes to mind, evaporator can freeze if they get to cold, which won’t allow air to pass through, so if airflow pass with the ac in the off mode this could be the cause, again just a guess with the information given,
Gets to cold usually caused by expansion valve or improper Freon level, sometimes you can keep max air off, and it will not freeze I have a video replacing the expansion valve
@@dannysdiygarage I have found out that my ac compressor comes on after 5 min of the car on, Then doesn't turn off despite turning off the ac and the fan on the climate control panel. I believe that is why my evaporator is freezing up.The relay for the ac clutch is fine. Would you happen to know what can cause the ac compressor clutch to stay engaged like that? Also the climate control panel shows no messages when doing the diagnostic check. I'm stumped
@@anthonyrojas9411 Most AC's have a thermistor/thermostat sensor/bulb attached to or near the downstream side of the evaporator. It's there to stop the evap from freezing up. Did you resolve the issue?
I replaced my clutch and magnet I had the ac running properly for 3 days then started blowing hot air. Freeon was topped up and relay was changed. I. Wondering if it's the expansion valve?
May i ask y a question with a ac issue. I have a honda 2008 mk8 1.8. I filled the ac up with coulant. I replacement the relay I can hear the ac pomp working. I checked the same wire. I have 1 connection instead of 3, it works. The H intake feels cold but the L intake feels warm. Still the air isnt cool inside the car. What could be the problemen?
Hi Danny, thanks for your great videos. I have a 07 Honda Civic EX with digital AC, I tried to make the evaluation with the 2 buttons that you show in the video but it doesn´t work, Do you know how can I do it in the EX version? Thanks.
My radiator fan works but condenser fan won’t turn on, and my compressor turns on when I hit it with a screw driver, does that mean I should adjust the shim?
possibly, however I would also tap the condenser fan motor to see if it starts working, I show this in my window motor video, or even starter video, its a great way to test motors of any kind, link ruclips.net/video/8B0d4jfwGYk/видео.html
Hey so I have a 2010 Lx, mine blows very cold for about 10 minutes then becomes hot, I ran the diagnostic and it blinked 4 times as I’ve also been having trouble with the buttons, could that be the reason my ac is blowing warm also or do I have other issues?
Love your videos. I have a 2008 Honda Civic LX that I bought new. Unfortunately the AC cuts out when the car gets too hot. I've traced it to the clutch not engaging when the engine gets hot during the hottest time of the day in summer after the car has been driven for a few minutes. AC works fine every other time and season, which as you can imagine is extremely frustrating. How would I go about fixing the clutch engagement to engage when I need it most, ie when it is hottest?
i fixed mine by removing access panel in plastic shroud on passenger side with wheel off then removing clutch center bolt with an impact wrench so clutch does not spin then remover one thin shim and clean back of clutch plate put it back on and tighten it back up there is videos on you tube of people doing this it worked perfect for me we did it years ago and it has worked since then.
@@dannysdiygarage I did check the relay, fuses and freon pressure. AC works great except when the engine gets too hot, then the clutch disengages. Will attempt Gregs suggestion once the warm weather returns. Thanks to you both for your help.
Hello Sir, When i turn on the switch the two buttons has to be pushed before turning on.. and after i turn the key on the first light goes off and AC light never turned on (what’s the problem here) ??? Please suggest
Hi, I have a 2010 Civic. The AC blows cold air for the first 10-15 minutes of the day, but then it cuts out only blowing hot fan air. The car will need to cool down for a few hours or perhaps overnight before it will blow cold air again in the morning. The hotter the ambient temperature, the shorter the AC is lived. 60-70 F will last 30 minutes before cutout. 95F maybe only 5-10 minutes before cutout. Does this sound like the compressor clutch wearing out? If so, should I just buy a new compressor? Thanks!
Not yet. I can visually see the compressor clutch disengaged after the AC cuts out. And then if I tap it into place it will run for another 5 minutes. Best I can guess is there is weakness in the magnet or coil system that developed. I’m going to buy an entire new compressor and clutch assembly from Denso and have Honda install it in the next week hopefully.
Have a 2009 Honda Civic LX 4 door as well and it has the same problem. It keeps running low on Freon and I’m not sure if there’s a leak or if it’s just the expansion valve maybe. Wish I knew you because our cars are identical lol you’d help a ton
If it’s loosing Freon it has a leak, do the visual inspection, if you don’t find anything, buy a can of Freon with die and add it, then get a black light
hi danny, i am ajay from india, i have honda civic 2011, my car's dashboard, gear knob area and center rail area getting hot while driving in winters, in summer ac works properly that's why dashboard not getting hot, but in winters i can feel heating while driving,..please help me
Hey Danny informative video. Currently having intermittent ac issues. Cold air will blow when driving however it's not as cold when stopped or idling. Any ideas? Thanks!
I have a couple of videos on this, if they’re unhelpful you will need to install gauges to read the pressures, knowing the pressure will help determine the problem
@@dannysdiygarage it was blowing cold air instead of hot air and you mentioned something under the dashboard that switches it to cold and hot and now that I remembered I recently replaced that specific part you mentioned that switches cold and hot
Hello on my Civic 2007 when I press AC on ventilators and compresor dont turn on. I have checked 7.5A fuse and replaced relay and it still doesnt work. Do you have any suggestions what could it be?
check your fans too. both should spin when the acs on. if one dont spin, you dont get enough airflow on hotter days. i just drove home today in 112°f heat and it was enough to make the compressor shut itself off, all cause the stupid condenser fan relay didnt work :(
![Kodak Black - Versatile 4 [Official Video]](http://i.ytimg.com/vi/VcP_1Ua__vY/mqdefault.jpg)
Great video Danny, a polite suggestion is checking the cabin air filter. I had my Acura's dirty enough to freeze the core and naturally stopped cooling. Swapped it and worked fine.
That is great information, I’ll share this in a future video, thanks so much for sharing this
Just changed mine too! Works well now! I had no idea!
I’m so glad that you have an 8th gen Civic since you’re a good teacher on diagnosis and repairs.
Thanks so much, I love making videos, especially when they help others, appreciate you
So happy i found this channel, my issue was the fuse I was sweating on my way home and now im ice cold again.
Glad it helped
Thanks for the help Dan, just got a Civic '11 and they said the AC hadn't worked. Parts still spun, bought the relay plugged it in and it worked like a charm!
Awesome! Another success story, appreciate you sharing, these are the comments that keep me producing videos 👍🏼
This saved me an arm and a leg. Had a bad fuse. Which obviously threw off the ac recharge reading. Replaced the fuse, recharged the ac and it works! It isn’t ice cold but it’s getting colder!
I appreciate your comment, glad I could help
So my ac was blowing warm on idle but once I would go it would cool down followed this man’s first steps and turned out my cold to heater actuator was just stuck a little before all the way cold flipped it to hit the back to cold and fixed the ac issue lol what an easy fix
How did you fix it exactly? Im having the exact same issue (coolish air blown at idle, alot cooler while moving) my blend door actuator moves when I change the vents from face, to feet, to defrost.. all of that. But it doesn't move at all when I change the temperature from cold to hot, and back and forth. But it does change the temperature.
@@The_real_OverrunnNo
Sir, an excellent video. I am an automotive instructor and I think you made a perfect video.
WOW, great compliment, I appreciate you taking the time to add this comment
I checked my 09 civic and it ended up being the relay. You really helped out.
I’m
A mechanic and seeing this on my spare time I gotta say one heck of a video very thorough
Great video, tha tip of pressing the buttons 1:03 down and turning the ignition helped alleviate some stress, no warning lights.
Then I swapped the relays 6:39 as you suggested and it was a dead relay, so I bought a new one and AC is up and running.
Thanks Danny.
Appreciate this, I always wonder if my videos help out, sharing your success stories is appreciated
@@dannysdiygarage When I press the buttons down and turn the ignition, the recycle light flashes. So, what should I do? My 09 civic is blowing warm air even when I turn AC on.
@@dannysdiygarage I further watched to the end of you video and checked again, my actuator blend door does not move at all when I switch cold to hot back and forth. Let me study how it can be fixed.
@@yxie2685 I have a video on that
can't wait to sit in 48F lmao😁 just diagnosed it using your method and its definitely the expansion valve, although it wouldn't hurt to swap out all the fuses on mine
Great video I had trouble with my 8th generation civic AC cooling properly. It was the actuator motor that controls the air temperature. Once it was replaced with a Honda oem part the problem was solved
thanks so much for sharing this information with my channel, appreciate you
where is the actuator located
Iam sorry I just saw your question. It in on the drivers side next to the gas pedal
Good sir one thing you didn't mention is sometimes it could be the in cab aii filter behind the glove box, if it's covered in dirt and leaves this will restrict the air flow as well. Awesome video in detail 👌!
Thanks for adding information, always welcome 👍🏼
Thanks so much for this informative video! I had watched other videos suggesting the A/C clutch relay might be the problem (it was), but I didn't have any way of testing the theory out without ordering the part first. I'm just not knowledgeable enough about cars to randomly try swapping things out and around without worrying I'm going to cause some sort of catastrophic failure, so I rely on people like you to give me the confidence to try this stuff out without worrying that I'm doing something wrong. It was your suggestion to swap the rad fan relay with the A/C relay that helped me pin it down as the definite cause for my A/C issue. So thanks again, I appreciate the work you do!
Thanks for the kind comment, I do appreciate your support
I’ve had my A.C. fixed numerous times. Just last summer at the tune of over 400$. Still blows out mildly cold air. I a m at wit’s end!
Wow, I was able to fix my issue, and learned a lot more along the way. Probably the best video or knowledge share I've seen out there.
just fixed the AC on my 08 Civic with an $11 relay - thank you so much!
Appreciate your support watching and commenting 👍🏼
Absolutely magnificent.
I found one of fans disconnected but that didnt solve it.
Only cold air only coming from one side
Thank you Dan. You fixed my a/c just by doing the 1st step because it’s hot here very hot
I appreciate your gratitude 👍🏼
So a guy was trying to help me and connected the freon can but nothing would go in
It seems to me that Honda has the worst air conditioning system ever built. Myself and both of my sons have Honda vehicles with dead air conditioners. It never happened in my Toyota's before
I bought a used Honda 3 months ago that had ac issues. They had to replace the compressor. I also never had any ac issues with Toyota. After this car I'm going back to Toyota.
Hey there my friends I want to tell you that my neighbor was mechanic and he did the so-called Freon recharging and brought it all back to life. So that has changed my opinion so much
@@jamesbondaygeehad my 2010 civic for 10 years now. Did end up having to replace a Freon line
once and had to recharge freon about 3 times. But other than that, it's been pretty reliable. Cools just as fast as most modern, newer cats.
Thanks for the video. Towards the end of the video I was thinking "no wonder why mechanics get paid so much! That seems like a a lot of work. My 2016 Civic just started blowing warm air. I may take it to the shop and see how much they quote me to get it fixed.
Thanks for watching Ryan
thanks! I think i'm still gonna go to the rip off garage but at least I understand this stuff better thanks to you. my a/c will get super cold but unfortunately it takes about 1/2 an hour for it to happen and most of my driving is 20 min or even less - doesnt' ssound like long but like you said 90's gets hot quick
Thanks U. This is one of the best videos I have seen on diagnosing problems. I am a novice so this was helpful. Couple of suggestions that might seem dumb to experienced follks. CONTROL HEAD TEST: More on codes. What they mean / look like. Point out turn key all the way without starting. ACTUATOR BLENDER TEST: Where located? Engine on or key just turned fully? FAN TESTING: Engine on or key turned all way only? What fans/location A/C RELAY TEST: Show compressor on/off. FREON TEST: Which port? I saw two. Thanks for this fantastic video. Your good teracher adn use a clear voice ❤❤❤
Understood, I plan on going deeper into diagnostic on each code, videos like this take weeks to produce, there’s the research, scripting, then trying to explain in a way that the novice can understand and feel comfortable performing these tests, not to mention with tools that are available for the DIY home mechanic, shooting the video and editing my goal is to have next summer a complete AC diagnostic video, other than this AC video, many of my in-depth wiring diagnostic videos that I spent weeks on haven’t done very well, which tells me my viewers are wanting a quick fix, if not they’re taking it to the shop, the codes are in the description if you haven’t seen them, thanks for your feedback it’s very helpful
@@dannysdiygarage I think few people appreciate how much work goes into making these videos. I followed your process. HEADER TEST: 👎 result is light blinked 4 times. Now I have to figure out what that means AC RELAY: New relay did not engage 👎 🚫compressor (clutch) FAN TEST: ✅ VISUAL INSPECT: ✅ ACTUATOR BLENDER TEST: Don’t know where it is.
So unless I can figure out what the 4 blinking lights on header test are I am guessing needs new compressor which probably means whole new system 😢😢😢😢
where would i find the actuator
The AC relay trick worked for me! Thank you!!
You are the best . Help me fix my AC it was my relay. I would have never guess
Appreciate you letting me know I helped
This video is one of the most solid automotive how to's!
appreciate
Very instructive, as always. Thank you!
Awesome, thank you👍🏼
My 2013 civic just started instantly blowing warm on my way home, went cold for 30 seconds again and back to warm. Owned it for 10 years 110,000 miles and this is the first issue I’ve really had with the car lol. It’s also extremely hot outside right now and one of my suspicions is the system kicks off when it’s too hot.
sorry, I missed this comment, did you get this fixed and what was the cure?
@@dannysdiygarage not yet, maybe tomorrow actually. What ended up happening was the red 12 volt wire rotted off the electromagnet side of the clutch. It was barely connected, thus an intermittent weak connection and sometimes it would work sometimes not. I ordered a whole new clutch assy with pulley, clutch, electromagnet for $40. The replacement process is straightforward. Compressor doesn’t need to come off, Freon doesn’t need evac or recharge.
Appreciate the response and explanation 👍🏼 sounds like it will be fixed
All video is prefect stap by stap is working good ..normally how check the working AC ..this is very important in your knowledge. .
Recently I was worked my honda civic automatic (Ac work...) mhachanic told me your ac is not working(I am living in uae ) I asked why?? He told me ac unit is not working and GAS problem. You go and perches the new Ac with vlues and relye. .but I inses (total parts experience 1100 to 1200 Aed) w/o labour charges..I told any opinions?
He is intelligent (from pakistan )
Yes I have solution. .he told me I try my best ..and he cleaning the Ac by presher and fill compresor oil in Ac and new Gas filling and fillter change. .my Ac is good working and best performance and setting half and helf 3 to 4 points only and chill cooling. .and I save my money and time. Total amount with labour only 200 aed....I AM very happy and Ac working good (that is true)))) recently 6/7/24... (that is posible? ???? Plz reply
@@fahimuddin8349 I’m not understanding your question
I once hit the ac compressor with a hammer gave it a nice good hit and worked a charmed
Amazing video. All clear. My Honda 07 Lx It makes a short circuit when removing and installing the air conditioning fuse, and it seems that the fans are going to turn on and it turns off, the compressor also does not turn on, I already checked the relays and if they work, also the internal control unit.
Thank you sir…your video was excellent and great tips to troubleshoot ac problems.
Glad to hear it, appreciate that
Thanks for making the video! Was hoping it would be the easy relay fix, but I'm now thinking it's the clutch because I've seen others mention the thing about heat causing it to stop.
You’re welcome, appreciate your feedback, thanks for that
Danny help me out. My AC works and the clutch engages and disengages like its supposed to for 10 minutes then it just quits and dont engage again. Does this sound like low freon? I tried recharging it with freon a while back and i tried the fuse swap nothing. Everything else looks fine like u mentioned but i don't know what to do. Should i try to recharge my ac again maybe i didn't do it right??
Great video another easy test the metal hoses neae the valves should be ice cold when its on
Great point!
my actuator had snapped in half, thank you for this video, you saved me 😂
@@hotdog1765 appreciate your gratitude
Where do I find that actuator?? I need to check mine
@@foxtrot312I have videos on them
Very helpful tips. Thanks a lot my dear friend. God Bless you!!!🙏
appreciate your comment
This video was extremely helpful Danny. Thank you.
Thanks for watching, I appreciate your support 👍🏼
I had problem with 2007 civic where clutch only engaged sometimes the hotter it got outside the less likely it was to work so we took ac clutch plate off through wheel well it is a common problem and took out one spacer shim washer and cleaned rust from back of clutch plate with wire wheel the few thousands of the shim had it working perfectly after we put it back together and it has worked for years since then
I’ve also had that problem, years ago, thanks for sharing
Hi Danny thank you. You are a teacher. I changed the relay because the AC was intermittent in my civic 2008 then the odometer cannot be modified and also the AC continue intermittent. Advice please
THANK YOU,
Mr. Danny n God bless 🙌
well done sir! professional and logical!
Hi Danny, thanks for the informative videos. I did the test on the head unit on my 2009 Honda Civic and the light was flashing 4 quick flashes repeatedly. What does that indicate? My ac doesn’t seem as cold as it should be. Thanks John
In the description there is a list of codes that explain the flashes, check it out
Hi Danny, I see it now. The motor that redirects the airflow to the various vents . Thanks for the prompt response.👍
Danny, is there any danger in adding Freon if Freon is not the issue? I suspect that is the issue with mine, but I do not have a thermo to test the before and after. Is there any danger in adding some Freon and then checking if the AC blows cold after? Thanks!
Yes, if you overfill the system it will cause more problems for you. If you're able to,Buy a gauge to test it. Better to be safe than sorry. Ac's are such a blessing and for me A complete necessity. I no longer have a thyroid soo it's no beuno not having AC right now. No one can pin point wtf is wrong with mine so I'm trying to do it myself lol. Ohh ohh get a gauge that shows you BOTH the high and low side! I hope you get it figured out❤
So I have a little bit of an odd issue. When I bought the car the ac would not blow as cold at an idle but would blow very cold while driving. Now it consistently blows much warmer regardless driving or not. The clutch on the compressor engages. Both fans kick on. And the dummy gauge reads that it has refrigerant in the system. I’m thinking either blend door actuator or possible the expansion valve. I already pulled the cabin filter and cleaned it out.
same issue with mine. did you you get it figured out?
Danny when I use the a/c the vent closest to the passenger window blows cold but every other blows hot air. I changed the vent actuator
DUUUUDE IS A LIFE SAVER!!! Thanks!!!
I appreciate this comment
Hey Danny, what if your hvac system only puts air out on the dash and not out defrost or floor, Regardless of which zone is selected? Just noticed my 2010 civic has this when trying to defrost
I selected defrost and air continues coming from dashboard vents
I have the same car. Ac clutch engages and freon is in the sytem but no cold air. The blend doors work fine.
Lots of possibilities, not enough Freon or expansion valve
you help me today, my relay was bad and i almost buy a new compressor 😂😂
That’s awesome, I appreciate you sharing that with me
Worked for me..thanks alot...just had to reset
Best video so far
My 2011 CRV ended up having clutch engagement issues due to wear and tear increasing the spacing between it and the compressor. Removed it and removed a spacing shim to reduce the gap back within spec and now it engages and blows cold!
Awesome, great information, I appreciate you sharing this👍🏼
There are 3 or 4 shims in there of different thickness.
The air gap recommended is 0.35mm to 0.65mm (about .014" to .024").
Removed 1 or 2 that give a recommended air gap between the clutch plate and pulley.
not sure if you experience this situation I am currently having on my civic aircon.After driving a while longer with AC on turned at the lowest temperature, the ac starts blowing hot air, it literally just heats up instead of just not blowing cold air.
with AC on putting it to low temperature cant defog, now I can only use high temperature to defog.
It does has compressor clutch engaging all but blow wrong temperature. what component do you think it could go wrong? The ac blows normal cold air varies from different temperature I set, most of the time while the car has been driven like the first 15-20mins after a certain time, that symptom starts.
I think this video needs to add changing out the fuse and relay. That fixed my problem because I saw that the clutch was not engaging when I turned on the A/C. There's no problem with the fan or the system holding pressure.
Great addition, thanks for adding this information
How did you know it was the expansion valve? Is that the only thing to check after everything that came before?
Expansion valve meters the Freon and it was the most logical solution and it worked
Hi danny, I have a 2008 civic lx. The AC will work when at night time, AC will work for the first 5-10 mins of driving at the hot day then it will start not blowing cold air. What can be the problems there and I have recharge the AC.
Correct me if I’m wrong but when filling the low pressure side are you not supposed to keep the can upright and 45 degrees max to keep liquid from going into the low side? Can’t compress liquid, right?
The can has special instructions on this, follow the instructions on the can, but you are correct unless the can says different
Thank you for the video I have CRV 2007 the AC is not cooling enough I add some frion but still the same could you please help me thank you
Hey Danny. I also have a 2009 Honda Civic Hybrid. I have a digital thermostat temp gauge. When holding down the recirculate and rear defogger for a few seconds my display spelled out AC. My control head does is not change the direction of the air and it’s also hot air and not blowing cold. Any ideas?
Question: 07 Civic EX. A/C wasn't charged when I bought it. I was told it just needed freon. Bought a charge kit from Walmart. Put it on the low pressure side to change it. It was empty. Turned everything on high/max, pulled the trigger, clutch activated but the gauge shot to the red/full/danger zone within 3 secs. I know it's not full. What do you think?
many reasons, I could not begin to even guess unless you installed a set of gauges and had reading of both high and low side, sorry
Did you pull system into a vacuum 1st?
Amazing video AC working perfect now thank you.
You're welcome, appreciate your comment.
Hi great channel helped me alot can you do a video for 2006 Honda civic LX oil consumption and pcv valve replacement thank you sir
I’ll put that on my list
@@dannysdiygarage thank you Danny I appreciate you sir
I appreciate your kind words
Danny - I didn't get any codes from the control panel at 2:09 in the video. At 2:26 in this video, the 2nd mode/button from the left on the control panel is NOT working properly. This is the button where there is an arrow pointing to the face and an arrow pointing down to the floor. The light comes on OK, but the air is ONLY coming on at the bottom toward the floor, NOT at the top toward the face. I did notice that if I select the 1st button, with the arrow to the face, and the 3rd button with arrow pointing to the floor separately they both work. What could be the issue?
My clutch is engaging, but AC not cooling like before. Can it be a relay issue or need more r134?
Well you're over 10,000 subs. So mechanic filled with new freon and the A/C got cold, but a few days later it was blowing warm air. Mechanic did not detect leak. Clutch kicks on. Your thoughts?
Gotta look at the gauge, the gauge will help diagnose, does the compressor cycle a lot or stay on? I have a few videos on ac and videos on ac fans also, check them out
Grate video danny, do you know what to do if the diagnosis blinks 4 times?
Should be in the description or in the comments
Very high quality made video, thank you so much! I’m curious: I believe our ‘09 Civic needs a new compressor clutch. If i’m not mistaken, the compressor clutch SHOULD be spinning once A/C is activated, correct? Ours is not activated with A/C on and is blowing very warm air. It will only work for around 10 minutes at the start of everyday - consistently. Curious to hear yours or anyone’s thoughts.
The ac is activated when the switch is turned on and condition are met, low Freon will cause the clutch not to activate also, check out this video also ruclips.net/video/i94Bv8KaVzA/видео.htmlsi=T2czxY_4fbN0ZBe9
What are your thoughts on hotwiring a switch to my dashboard in order to get my ac running. It’s an old car, ‘96. The ac works, I just can’t get the compressor to engage no matter how many parts I replace. No one can figure it out. I’ve heard of people doing this. I understand that this could kill the compressor, but if I cycle the switch on and off, maybe I could get by. What do you think? Thank you!
I would not do a switch, I would spend more time to diagnose the problem, I don't know what diagnostics you have done, but there is a Thermal protecter in that circuit, should be somewhere left front corner of the engine compartment, two red wires going to it. check that
@@dannysdiygarage. Thank you for your timely response. You give good advice. I was blessed to find a video about my same vehicle with the very same problem. It turned out to be a burned AC control panel. I removed mine today and immediately knew by the smell that I have a bad unit. It was the same odor that I had detected just minutes before it stopped working. I’m getting one cheap tomorrow and it swaps out extremely easily. If by some strange circumstance anyone owns a 1996 Nissan Quest/mercury Villager, and has tried everything without success, just know that the head unit is trouble prone and hard to diagnose because it still functions in every way except for the AC on button which is responsible for engaging the clutch. However, the light illuminates when depressed which makes one believe that the compressor is getting a call to engage but not so. Hopefully this helps someone.
Very detailed video. I'm happy that I looked at your video!👍
Thanks appreciate it
Thanks for the very informative tips. Would you know the correct part/model of the relay for a 2008 Honda Civic Sedan DX-G?
Sorry, I don’t have that part #, I would call Honda
Hi Danny, great video and wanted to ask for help. The thing that has me stumped is when moving the temp. nob, the blend door doesn't move but the temp. still changes fine. I'm having an issue when I'm driving more than 30 min, air stops coming out of my vents but I can still hear the blower motor and it sounds blocked. Blend door moves fine when switching through modes. And no codes from control
I need more information to make a educated guess, but here is something that comes to mind, evaporator can freeze if they get to cold, which won’t allow air to pass through, so if airflow pass with the ac in the off mode this could be the cause, again just a guess with the information given,
@@dannysdiygarage thanks for the feedback. What would say can cause the evaporator to freeze up?
Gets to cold usually caused by expansion valve or improper Freon level, sometimes you can keep max air off, and it will not freeze
I have a video replacing the expansion valve
@@dannysdiygarage I have found out that my ac compressor comes on after 5 min of the car on, Then doesn't turn off despite turning off the ac and the fan on the climate control panel. I believe that is why my evaporator is freezing up.The relay for the ac clutch is fine. Would you happen to know what can cause the ac compressor clutch to stay engaged like that? Also the climate control panel shows no messages when doing the diagnostic check. I'm stumped
@@anthonyrojas9411 Most AC's have a thermistor/thermostat sensor/bulb attached to or near the downstream side of the evaporator. It's there to stop the evap from freezing up. Did you resolve the issue?
I replaced my clutch and magnet I had the ac running properly for 3 days then started blowing hot air. Freeon was topped up and relay was changed. I. Wondering if it's the expansion valve?
May i ask y a question with a ac issue. I have a honda 2008 mk8 1.8. I filled the ac up with coulant. I replacement the relay
I can hear the ac pomp working. I checked the same wire. I have 1 connection instead of 3, it works. The H intake feels cold but the L intake feels warm. Still the air isnt cool inside the car. What could be the problemen?
You are a GREAT teacher ! 👍
appreciate that
Thank you so much mine was the relay i switch it with another and the ac starter working .. thank you thank you
You’re welcome, I appreciate the details of how this helped you out🍺👍🏼
yeah you are the truth!! good video i will be trying this
Hi Danny, thanks for your great videos. I have a 07 Honda Civic EX with digital AC, I tried to make the evaluation with the 2 buttons that you show in the video but it doesn´t work, Do you know how can I do it in the EX version? Thanks.
I'm not sure an 07 has that feature
My radiator fan works but condenser fan won’t turn on, and my compressor turns on when I hit it with a screw driver, does that mean I should adjust the shim?
possibly, however I would also tap the condenser fan motor to see if it starts working, I show this in my window motor video, or even starter video, its a great way to test motors of any kind, link ruclips.net/video/8B0d4jfwGYk/видео.html
So the only fan, the drivers side, turns on for me. Gotta figure out why and if that's my problem or if there's more to it.
This video should help you determine what is causing your fan problem ruclips.net/video/Uw4lLvyFOns/видео.htmlsi=HgiEYW47OeGidAZQ
Hey so I have a 2010 Lx, mine blows very cold for about 10 minutes then becomes hot, I ran the diagnostic and it blinked 4 times as I’ve also been having trouble with the buttons, could that be the reason my ac is blowing warm also or do I have other issues?
Love your videos. I have a 2008 Honda Civic LX that I bought new. Unfortunately the AC cuts out when the car gets too hot. I've traced it to the clutch not engaging when the engine gets hot during the hottest time of the day in summer after the car has been driven for a few minutes. AC works fine every other time and season, which as you can imagine is extremely frustrating. How would I go about fixing the clutch engagement to engage when I need it most, ie when it is hottest?
i fixed mine by removing access panel in plastic shroud on passenger side with wheel off then removing clutch center bolt with an impact wrench so clutch does not spin then remover one thin shim and clean back of clutch plate put it back on and tighten it back up there is videos on you tube of people doing this it worked perfect for me we did it years ago and it has worked since then.
Thanks for adding this
I would also check the relay
@@ranger178 will engine run if the clutch is disconnected?
@@dannysdiygarage I did check the relay, fuses and freon pressure. AC works great except when the engine gets too hot, then the clutch disengages. Will attempt Gregs suggestion once the warm weather returns. Thanks to you both for your help.
Thank you sir you're amazing for this video
Hello Sir, When i turn on the switch the two buttons has to be pushed before turning on.. and after i turn the key on the first light goes off and AC light never turned on (what’s the problem here) ??? Please suggest
Look for the AC fuse maybe blown. This means your AC is not working? Or damaged control unit.
Hi sir , What does it mean the light flashing on the recirculating bottom?!
Check the description in this video for the description of the light flashing
Quick question for you, your engine bay is so clean, do you powerwash it or just use a rag and some kind of detergent/water solution and wipe it down?
I’m from California, however once in a while a clean it lightly after a repair with low pressure
This video was helpful! Thank you
Glad it was helpful! Appreciate your support
Thank you so much Sir you hust solved my issue
Hi, I have a 2010 Civic. The AC blows cold air for the first 10-15 minutes of the day, but then it cuts out only blowing hot fan air. The car will need to cool down for a few hours or perhaps overnight before it will blow cold air again in the morning. The hotter the ambient temperature, the shorter the AC is lived. 60-70 F will last 30 minutes before cutout. 95F maybe only 5-10 minutes before cutout. Does this sound like the compressor clutch wearing out? If so, should I just buy a new compressor? Thanks!
Did you ever find the issue? I’m literally having the same exact problem right now in my 2010
Not yet. I can visually see the compressor clutch disengaged after the AC cuts out. And then if I tap it into place it will run for another 5 minutes. Best I can guess is there is weakness in the magnet or coil system that developed. I’m going to buy an entire new compressor and clutch assembly from Denso and have Honda install it in the next week hopefully.
Have a 2009 Honda Civic LX 4 door as well and it has the same problem. It keeps running low on Freon and I’m not sure if there’s a leak or if it’s just the expansion valve maybe. Wish I knew you because our cars are identical lol you’d help a ton
If it’s loosing Freon it has a leak, do the visual inspection, if you don’t find anything, buy a can of Freon with die and add it, then get a black light
@@dannysdiygarage will do! Thank you for being very informative!
Can you use another unit on your car screen??
hi danny, i am ajay from india, i have honda civic 2011, my car's dashboard, gear knob area and center rail area getting hot while driving in winters, in summer ac works properly that's why dashboard not getting hot, but in winters i can feel heating while driving,..please help me
I’d love to help, I don’t understand the question
Thank You for Video ! Very helpful
Glad it was helpful!
Hey Danny informative video. Currently having intermittent ac issues. Cold air will blow when driving however it's not as cold when stopped or idling. Any ideas? Thanks!
I have a couple of videos on this, if they’re unhelpful you will need to install gauges to read the pressures, knowing the pressure will help determine the problem
Thank you so much you video help me to fix my Ac issue. God bless you :)
Appreciate your gratitude
@@dannysdiygaragemy battery dies after 2-3 days of the car just sitting. has a brand new alternator and new battery
@@joseturcio361 check out my parasitic draw videos, this is most likely the cause
Thank you so much my heat wasn’t working and this video helped a lot
Appreciate your comment, Now that it’s winter I should probably make something for the heater, what was wrong with yours?
@@dannysdiygarage it was blowing cold air instead of hot air and you mentioned something under the dashboard that switches it to cold and hot and now that I remembered I recently replaced that specific part you mentioned that switches cold and hot
@@rogelioaguirre257 thank you
Hello on my Civic 2007 when I press AC on ventilators and compresor dont turn on. I have checked 7.5A fuse and replaced relay and it still doesnt work. Do you have any suggestions what could it be?
HOLY FUCKIN' FUCK!!!
YOUR "NOT RECOMMENDED" METHOD WORKED FOR MY CAR!😂😢
THANK you so much!
What made you come to the conclusion that it was the expansion valve that needed replaced?
My gauge readings were not making sense and I was sure it had to do with metering the Freon
helped me a lot thanks 😁
Glad I could help!
Can you add freon yourself if the clutch does not engage?
Yes, I have a video showing this
Will this work for the 8th gen 1.8 hattchback here in europe
I’m not sure , try it and report back if you could
check your fans too. both should spin when the acs on. if one dont spin, you dont get enough airflow on hotter days. i just drove home today in 112°f heat and it was enough to make the compressor shut itself off, all cause the stupid condenser fan relay didnt work :(