Acura MDX Air Conditioner AC Not Blowing Cold / Battery Draining? - How To Fix It For Cheap!

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Took some time off to enjoy the summer heat and towed the boat with my Acura MDX. We found out quiclky that the AC was intermittently working and found out that the cheap (made in vietnam) relay had gone bad. I show you how to diagnose it and how to replace it easily for cheap (or free).
Parts:
OEM Omron G8HL-H71 AC Relay (2 Pack) amzn.to/2B7vP6t
#hondaACFix #acuraACFix #ACRelay
► Buy me a coffee if I helped you with this video! www.buymeacoff...
► Support this channel by buying some 4Runner Merch! teespring.com/...
Disclaimer:
Due to factors beyond my control, I cannot guarantee against improper use or unauthorized modifications of this information. I 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. I recommend safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond my control, 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 me. Enjoy my videos.
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[@PhoRunner]

It's been almost a year and the AC is still SOLID and no more battery drain!

[@karaherron187]

What year is your MDX, I am having a similar problem with my 2015.

[@PhoRunner]

2011

[@1sotheary]

I can't believe it actually worked. My AC was working intermittently last summer, but it worked most of the time. I stopped using the AC during the winter, but when I started to use the AC again a few weeks ago, the AC wouldn't work at all. Nothing. Blowing warm air. I was going to try to recharge the AC unit to see if that worked, but decided to check KZbin to see if anything else could be the problem. I came across this video and when I tried what was show, the AC started to blow cold air. It was that simple. I went to buy a new AC Relay at Autozone for around $9. Fixed.

[@PhoRunner]

Excellent

[@juanurena8223]

You video just saved me a couple hundred dollars!!! Five minutes and my ac is working!! Blessings for you

[@RaffiPrincian]

2007 Mexican, I believe just stop working, did what you suggest and fix in 5 min, thank you a million!!!

[@PhoRunner]

woo hoo!

[@rarefruit2320]

Mexicans normally work forever. Glad you got him fixed

[@njsound9435]

Must say I was absolutely ready to give up my mdx this summer but I stumbled on this video definitely worked and I’m keeping my baby

[@desiwashington246]

Thank you so much for this. The fuse cost me $10 on Amazon and 5 mins to replace if that! AC back to a steady cold flow. Amazing!!!

[@PhoRunner]

Awesome

[@daddytaz7123]

Thanks man! It fix my ac issue. I pull a ac compressor from the junkyard and was about to do the swap, good thing I gave this trick a shot. Save me the labor, my AC works now

[@PhoRunner]

Nice! Glad I could help

[@_mikishi_]

Thank you. My AC stopped working, and I thought it'd be a compressor. But swapping the relay worked for me.

[@jaymartinson]

Thank you so much! I was about to take my MDX to the shop but found your video. My AC relay was also made in Vietnam and swapping it with fog lights fixed it. You saved me big $$ and from an angry wife while we are driving on vacation. Thanks!!!

[@PhoRunner]

Excellent lol

[@aspenguy]

You just saved us $2,000+! Thanks for the info

[@PhoRunner]

Nice!!! Darn those stealerships...

[@fredbaumann4452]

Amazing!!! Thank you so much. Saved my poor college daughter some big money.

[@PhoRunner]

That’s what I like to hear!!

[@rrenner0071]

Dude that was amazing fix for my acura MDX 2007, had the exact same problem of slow draining battery and the air conditioner was mostly not blowing cool air. I replaced the relay and the air started blowing cold air and i will see if the battery stops draining but it looks good.... Thanks a ton, saved me a lot of money taking it to a shop....

[@PhoRunner]

Glad this worked!!

[@farmerwayneo877]

You are the best, easy to understand, knowledgeable and - it fixed my problem- and yes my relay was made in Vietnam

[@PhoRunner]

My ac is still working great so this fix is definitely it and will last!!

[@MrMoises4554]

OMG thank you so much!! It happened the same to my MDX. I follow up with advice and now is working properly. Ones again, thank you so much 🙂🙃😉

[@PhoRunner]

Any time!!

[@antonosynskyi1045]

God bless you buddy!!! Your video saved for me a lot of time and money! 2009 Acura MDX✅

[@PhoRunner]

No problem!!

[@mixmasterwillyd9959]

Immediately subscribed 5 seconds into the intro video. Awesome.

[@PhoRunner]

Welcome!!

[@bobmoandfriend]

'PhoRunner' Ha! I love it!

[@PhoRunner]

Lol

[@craig42069]

Holy shit!!! I think you just saved my 2011 MDX. Had the same cheap relay for the AC like yours.

[@PhoRunner]

Awesomeee and thanks for the coffee buddy! Mines still going strong!!

[@brian2463]

Hey, great idea to make this video. AC would go out from time to time. Refrigerant is full so I kept KZbin-ing. I checked the relay and sure enough, the other ones were OEM and this AC one? Like yours, made in Vietnam. I swapped them and found the AC worked fine, but only one fog light came on. I decided to just pull that cheap one and will likely replace it with OEM later. Thanks for the tip!

[@PhoRunner]

No problem!! I think they may have came factory with these and wanted them to fail on consumers!!!!

[@quincyqualls8226]

Worked on our 2012 MDX. Thank you!

[@PhoRunner]

You are welcome!

[@dorisshaver8763]

Excellent, thank you, leaving for vacation and the air went out .... this relay fixed it.....

[@PhoRunner]

Have a nice vacation!!!

[@heidiconner1371]

Instantly fixed my AC! Thank you so much ❤️

[@PhoRunner]

You are most welcome

[@bryanmccracken4957]

Thank you! Worked just as described, 5 minute fix on my 2009 mdx.

[@PhoRunner]

Excellent!!!!

[@ParagonLife]

My MDX had the same problem and fixed as you suggested.

[@PhoRunner]

Nice! It’s hot out here again !!

[@mc800v]

Thanks! that totally worked for me. What I notice while pulling out the relay. It was hot and it looked like the print was burnt. When I replaced it it worked fine.

[@7500100vince]

I just did it, after doing the Compressor & Condenser change, oh yeah 1,,800$ back in the fall 😅. From what I read, it should fix it !!! Thanks a lot, will follow through & will follow the link and send you coffee $

[@PhoRunner]

Good luck !

[@blk_bvddafly8524]

Lifesaver! Thank you! Now I can go to a junk yard for a relay, correct?

[@PhoRunner]

You can or use my link to a brand new relay!

[@manhdo2310]

Hi just want to know if no the relay. Why you think I should check on thanks

[@PhoRunner]

Most likely you need a new ac condenser. Check rock auto for an oem denso one for $300

[@bluraymex23]

I never pay for relays at the junkyard . They fit perfectly in my pocket lol.

[@PhoRunner]

Lol wow.

[@ken-xd8ej]

Ac sometimes blow cold and sometimes warm will try this tomorrow cross finger this will works on mine -2010 rdx

[@PhoRunner]

Definitely this!!!

[@Alex-rb1oh]

Thank you sir you saved me money 💰

[@PhoRunner]

Glad to hear!

[@zd1306]

My friend... you helped fix my problem!!!! 🤺👏🏾😀

[@PhoRunner]

That’s amazing!!!

[@ICollectALot23]

My 2007 MDX also had the Mitsuba relay for the AC.

[@PhoRunner]

interesting lol. Almost like they wanted it to fail.... ;)

[@Sunfizz98]

How would you know if it is the magnetic clutch fuse and not the AC relay?

[@PhoRunner]

The fuse diagram should tell you what is what.

[@andrewboes1627]

you are the man! worked like a charm!

[@PhoRunner]

Nice!!!

[@coldsun5495]

Mine is from Vietnam also Acura mdx 2011.

[@PhoRunner]

well mine lasted 9 years so i can't complain. But it's flawless now again with the new relay I got from the junkyard :)

[@osubg1]

@@PhoRunner So, was the relay working intermittently? That's seems really odd that the relay worked sometimes, but I'm not a pro. I just switched my AC relay with my fog one. The ac was the same Vietnam one that you showed. Both fog lights and AC are working (parked at home). I'll see if it's working over the next week. Ours was shutting down while sitting in traffic on the highway, not cool.

[@PhoRunner]

As it heats up under the engine bay, the metal can move slightly making the relay not function. My ac has been working flawlessly so far this whole summer

[@jt2633]

Mine quits blowing cold after 30 minutes or so of driving. It may or may not start blowing cold again. I have a 2010 MDX Advanced. Is this what everyone experiences prior to changing out the relay? TIA

[@jt2633]

well tried it and it worked ; so far Thanks

[@PhoRunner]

nice! And yes, mine would be intermittent just like that!

[@NINO-gv9ds]

Nice video, do you think i can swap the horn relay with the old ac relay to see if ac works?

[@PhoRunner]

yea as long as they look the same you can. Should be fine.

[@waldemargiers9535]

Thanx for video. It helped me solve my AC issue on my 2008 MDX. It was AC relay. I also order pair of them from Amazon link you included. I hope you will get little part of the price. Wally.

[@PhoRunner]

Nice!! And yes I will get a tiny affiliate commission. Glad it worked!!

[@lizlangston709]

I have a Acura MDX 2011 my air condition works and it gets super cold. Sometimes it will just start blowing warm if not hot. I can turn it off wait a few minutes and turn it back on holding my finger on the button and kind of wiggle it and then pull my finger back and it’ll blow just real cold. Until The next time what do you think that could be. Thank you Love My Acura

[@PhoRunner]

Try the relay because it sounds like an intermittent issue like mine

[@shaikhqadeer1485]

RDX 2016 inside workshop a/c cooling 6.3°c and trafic signal cooling drop 15°c to 20°c going and I already replace expansion valve no leakage ,compressor working, fan working, pls advice

[@PhoRunner]

Do you have enough refrigerant in the system?

[@216DJPAPI.]

You are the MVP of 2024. This worked 💪🏾 Thanks #partywithdjpapi

[@PhoRunner]

Excellent! Stay cool friend

[@series7tutor535]

Great video. I have intermitent cool air and on long drives the a/c goes from blowing cold air to not blowing much at all. Could it be the compressor? Or I have read it may be a blocked evaporator drain. Any inexpensive solutions?

[@PhoRunner]

Try the relay!

[@commander_koala9029]

thank you so much for making this video...can’t believe it was that easy to fix!

[@PhoRunner]

Yeah!!! Love the easy fixes!!

[@NGOHCLOVISNGOH]

Hi my Acura MDX 2008 AC blows out only hot air. What could be the problem

[@Bobbers_Outdoors]

Was really hoping this was my issue. Something wacky going on with my selector. Im getting cold air to the rear and not front. Starting to think its the blend actuator 🤷🏻

[@PhoRunner]

I would check that since it’s common

[@khadang-tran4862]

Hi there, I did this and was able to fix my AC! Thank you so much! However, when I tested the relay by plugging in a different one, now I get the "Check Emission Systems" and "Check VSA" warning on my Acura TL. I bought a new relay to replace the AC one, and put the other relay back, but it's still giving me the check engine light... help?

[@PhoRunner]

Take the battery cable off to reset it. you Must have pulled the abs relay.

[@khadang-tran4862]

PhoRunner Channel thanks for the response! I unplugged the relays and plugged them back in and it all seemed to go back to normal. Thanks!

[@PhoRunner]

Cool! Yeah no big deal. Honda’s are easy.

[@suprmax]

What do you do if the airconditioning works in front but the rear passenger blows hot air and no cold air?

[@PhoRunner]

I’m not sure on this one

[@ucheking5337]

The rear expansion valve TXV is clogged, replace it

[@efthimios]

I’m so bummed I did relay and fuse then got refrigerant and it’s in the yellow says warning so I don’t know what else to do or check mine is dong same blows cold on and off

[@PhoRunner]

Maybe you have too little or too much. Try adding or removing some to see if it helps. Mine would kick in and off when overfilled.

[@tooththrhr]

Hey my AC was working good, but now the air is not as cold as before. It's still cool air, but nowhere near as cold as it was. What could be the problem ?

[@PhoRunner]

Buy a can of r134a from Walmart and pump some in. Should be a blue cap on passenger side engine bay area above the belt to pump some more in. Don’t overdo it but do it until it feels cold out the vents. Check other KZbin videos.

[@tooththrhr]

@@PhoRunner I saw it today but I was afraid the buy the one without the gauge. I gotta do more research on how to do it. The gauge one is like 44 dollars.

[@PhoRunner]

Just shake and pump. Have someone sit inside and ask if it’s cold. A gauge is nice but that’s the true test hehe. Thermometer on vent helps too. 40-50f is what you would want coming out

[@LifeLover2020]

Will this solve the issue if the driver side is blowing cold but the passenger side isn't?

[@PhoRunner]

I don’t think. That likely is a different issue

[@LifeLover2020]

@@PhoRunner More than likely Bend door actuator?

[@PhoRunner]

@@LifeLover2020 yes

[@jamesallen3135]

You are wonderful bossman I appreciate you?

[@PhoRunner]

You are most welcome sir!

[@bluraymex23]

Hey question. My ac only works at night. During the day when its hot in blows hot can u help me. I drive a 2012 acura tL.

[@PhoRunner]

Try the relay or you might be low on r134a

[@bluraymex23]

@@PhoRunner frion ok .gonna try the relay ty bud.

[@AeroSS87]

Mine still isn't working. System is still charged. Anything else to check before going with a new compressor? My mdx only has 94k on it.

[@PhoRunner]

Check if the fan/compressor kicks on when you hit the AC button. If not, try tapping the compressor (vehicle off) to see if the clutch is stuck. May mean you need a new compressor. Get an OEM one on rockauto and find a mechanic to put it in. The stealership will rob you!

[@AeroSS87]

@@PhoRunner I actually did verify the compressor is coming on. I'm stumped. It should be blowing at least a little cool even if it's bad.

[@PhoRunner]

@@AeroSS87 lol i'm stumped too >_

[@gonskii8168]

Hello I had a question. My AC works in the back perfectly, but in the front it just blows air, (not cold at all just air and sometimes it’s hot air probably because of the engine). I really want to figure out how to fix it. The relay for AC from what I seen in the videos makes sure cold air blows, but the thing is it works in the back fine so that makes me think the relay isn’t the problem. What could it be

[@PhoRunner]

Sounds like you got a blocked vent. I’m not positive how to fix this though.. sorry!

[@gonskii8168]

@@PhoRunner thanks for the response anyway. I appreciate it

[@gonskii8168]

@Susana Urquizo I realized that if you have ur heat or air on - set on ur face/ face and feat, and click the off button it actually doesn’t turn it off

[@501soap]

I have replaced the relay to check it and it don’t help. So I put the old relay back and now I’m getting “headlight error”. This is for 2018 MDX Is the relay broken while replacing it.

[@PhoRunner]

Hmm shouldn’t break unless it’s not plugged all the way in. Try resetting it. Do your headlights not function anymore?

[@501soap]

@@PhoRunner yes. It functions. I’m getting the Error message “headlight problem “

[@PhoRunner]

Hmm try resetting the battery. I’m not positive. You must have fancier trim than my base model

[@501soap]

@@PhoRunner yes, that’s an option which I understood from the forum or reset using obd2 scanner.

[@yaniraayala9922]

I heve a question my 2007mdx Turn off the engine and remove the key and the blower stays on

[@PhoRunner]

I am not too sure

[@JoseSanchez-hk7xu]

The mitsuba are better than the omron on my zdx they are all made in Vietnam

[@PhoRunner]

Hmmm

[@eltiburon17ify]

I watched a video where the dude said the mitsuba, is better then omron, for some reason. Is lit bigger and is the new oem part..for Hondas

[@PhoRunner]

Cheaper…

[@agnesturay]

Hey, I have a 2018 RDX my passenger side blowing hot air while the driver side blowing cold air. What do you think the problem would be? Thanks!

[@PhoRunner]

These cars use some blender/mixer. You may have a malfunctioning one. Another issue could be it's low on R134a. You can try recharging by yourself with a can from walmart to see if that helps it. I would try this first before going to the stealership :).

[@isaacchavez2276]

Mine over heats if I stop while using ac

[@PhoRunner]

You need a new fan or fan relay isn’t kicking on

[@isaacchavez2276]

PhoRunner Channel thanks for replying but em mine isn’t showing signs of leaks cus it still has all the coolant but overheats while I’m at a ✋🏻

[@PhoRunner]

Usually at a stop, your fan should kick on as the temps rise. So maybe check the the temperature sensor as that tells the fan to come on. but the fan is supposed to be on when the ac is running so you shouldn’t be overheating unless you got air in your cooling system

[@isaacchavez2276]

PhoRunner Channel wow 😳

[@MikeMalone420]

Yo duhhhhh Man!!!

[@PhoRunner]

No problem mike!!!