Cold Heat? Hot AC? Diagnose Temperature Problems In Your Car or Truck

1A Auto: Repair Tips & Secrets Only Mechanics Know

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Is your AC blowing hot? Is your heat blowing cold? Before attempting more drastic measures, like replacing the AC refrigerant, or digging behind the dash to check the heater core, try some of these tips! It could be that the temperature control blend door is just stuck, or the actuator has failed. Check out this video to see how you can diagnose temperature control problems for yourself!
Have other problems to diagnose? Check out this collection of diagnostic tips and how-tos that you can try in your own driveway:
• Driveway Diagnostics!
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⚠ 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.

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7 июл 2024

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Комментарии : 64

@1AAuto 3 года назад

√ *Watch the Video* √ *Buy The Part at 1A Auto* 1aau.to/m/Visit-1AAuto √ *Do it Yourself* √ *Save Money*

@favianaragon8380 Год назад

Hi So I have a 2011 GMC Acadia and the driver side vent and 1st vent in the middle of the dash to the left is blowing out out air. If I replace the actuator under the dash will it fix this problem or would have to replace the passenger side as well? thanks.

@joezada3681 4 месяца назад

YOU ARE ONE OF A 100... I replaced my battery on my Sienna, and all of a sudden, the AC takes 45 sec to a min to start.. All other video kept saying "change the Actuator.. You the ONLY one so far the explained the issue perfectly... I'm subscribing to you channel.. you know what you doing..

@xthug68 2 года назад

Thanks so much. Just put in new speakers and amp. Obviously they disconnected the battery and ac wasn’t working. As you said I disconnected negative, waited 5 minutes and it’s working. You are the man!

@budyzryo 2 года назад

What happens if the cold air is coming out on the passenger side and hot air coming out from the driver side

@tourinojacks5844 11 месяцев назад

Great vid advice! Same problem in my truck and it was making the flap knocking sound when it was on 5. I turn it down to 4 or lower and no more flap knocking after years of doing this. Now, it is hot on one side when AC is on. Likely actuator like this video explained. Taking it to a shop tomorrow. Thank you.

@rambotan7927 3 года назад

Thanks a lot! This saved me a lot of trouble.

@rubengarcia7548 Год назад

Great video, it helped me to solve some kind of "permanent" issue with my car. Thanks a Lot.

@tsolooo38 2 года назад

I'm about to replace a blend door actuator. After replacement does it need to be calibrated at all or will it self adjust? Should you disconnect the battery after installation? 2012 Kia Optima.

@PhillyDee215 3 года назад

I see this problem a lot...cool video😎

@glendecuir6317 3 года назад

Enjoyed the video: I have a 01 GMC Sierra, had a aftermarket radio installed, and now I'm having Heat issues in the cabin. Little heat to no heat can you help thanks

@saifalkaabi9121 3 года назад

I have 2002 Chevy avalanche, Where I live it’s really hot, do you think if I bypass the heater core pipes under the hood I’ll get colder air ?

@G2340mm 11 месяцев назад

I have Honda civic 2018 and they said they’ve been having recalls about this. I,just recently put refrigerant and it works better now and gets cool faster than before

@superfluppe 3 года назад

Hi, I have a 2002 GMC Yukon Xl 1500 with a digital heater/ AC control module. It only gives me heat at max setting, so I have 2 options: cold or very hot (nothing in between). I've replaced the actuator at the passenger side but without succes. What could be the problem ? Thanks.

@richardbenson4750 3 года назад

This is your best series yet! Keep up the good work.

@1AAuto 3 года назад

+Richard Benson Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

@decoyspex890 2 года назад

what if I already changed out my actuators and did the battery unplug reset process and I still keep getting hot air one side and cold on the other? I have no idea what is going on with my ac. It is on a 2009 chevy tahoe, this started happening after I changed my bettery.

@ewconway 10 месяцев назад

Very informative 👍

@photoartteacher903 2 года назад

Good video - but from the title I was hoping you would tell us how to diagnose if a constant heat from both sides of the vehicle is either blend door OR temp sensor OR head unit. Seems like there might be a way with a multimeter to check head unit and sensors - was hoping to find that information.

@aliaziz6098 3 года назад

I have the same things on nissan santra 2015, can you help, i appreciated.

@BuccaBuddha1 Год назад

My passenger side and back seats were blowing hot air, drivers side was cold. I went through the glove box, unplugged the green wire. Plugged it back in and everything works great now. I didn’t have to replace anything. I have a 2014 Lincoln MKX.

@CastBlastCamp Месяц назад

2010 3.9 v6 chevy impala, driver side vents not blowing cold like the passenger side. Replaced driver side actuator hoping to fix the issue. Still having the same issue. Did 3 different reset/relearn procedures, still same issue... Any ideas? Low freon levels? Any help is most appreciated!

@AB-fs5ui 2 года назад

I have a question about my 99 accord v6 204k mi my heater will blow hot heat just fine and stay hot when really cold outside but when temp outside warms up heater wants to blow cold it’s full of coolant and tanks on max line changed my mode actuator cause had no selection over vents and no flow through 2 center vents it’s climate controled is this normal for this to blow cold when warm outside places say it could be a clogged heater core blows good n hot heat when cold outside

@JaspreetSingh-ew8ek 11 месяцев назад

my case, dual zone climate contol, the heater works good on both sides but ac doesn’t cool on driver side but works on all other vents.

@edge0315 2 месяца назад

Thanks. this was my problem. I also have issue with A/C. 2011 Honda CR-V dual controls. sometimes it works, sometimes it doesn't. No leaks, I've put 3 new compressors in and nothing changes. any ideas?

@alhadeed 2 года назад

If the same problem happens on a 2009 F150, which actuator exactly needs to be replaced? Like where's the location for that actuator?

@uptGuapo 2 года назад

I have a '08 Mazda 2.0 car has been giving me hell with the ac. Blew 2 New compressors in 1 month. Finally took my car to an AC car repair and had the system replaced compressor, dryer, and expansion valve. Everything was going smooth for the first 3 days. 4th day driver side and middle vents started blowing hot and the pass side was freezing cold I am so annoyed at this point

@kuyatol9833 2 года назад

How about if the driver side is a little cold than the passenger side because the passenger side is very cold but the passenger side is a little cold only and when I check the temp in monitor or switch is the same temp I change condenser,compressor,expansion valve but still the same what do think is the problem ? By the way the car is Silverado 2016 model thankyou in advance

@edalvarez9163 Год назад

Good video

@jamiewatkins8969 2 года назад

I changed the door actuator and still blowing cold on driver side and hot passenger side and it doesn’t have dual climate control ?

@tareqal-tmimi376 Год назад

Hello.. the problem is in my car when I turn on the cooling it does not work until after a minute. I saw the rear fog button light blinking when it stopped turning on the cooling. What is the problem?

@viselchakforyou Год назад

in my car when I turn Ac, the passenger side blows cabin air temp or outside temp (not hot air) but passenger is cold air . When I switch around air flows up middle or floor everything seems to work . Does this mean the actuator is working properly? Thank you

@ELMACHETERO.40 2 года назад

my 07 chevy suburban 1500 shuts the a/c off itself then when i turn back on it does cold air on the driver side and hot on the passenger

@ryans413 11 месяцев назад

On my car the only blend door that motor driven is the temperature control the rest are controlled by engine vacuum

@katariajaymin205 3 года назад

I came across with the same problem, when i was turning heat on the passenger side, i was able to see the gears rotating but when I turned to the cold side it didn’t turn. So, will it be the actuator issue or something else?

@1AAuto 3 года назад

+kataria jaymin 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

@johnmorell2663 2 года назад

Thank you

@1AAuto 2 года назад

+John Morell Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

@gbozack5935 3 года назад

My temperature ring says like 35, but it's like 70 in my truck and I can't turn it up no further than 30 something

@a1tec771 2 года назад

2013 Chrysler 300 both acuator work passenger still warm Ac

@salvadorgutierrezr5914 3 года назад

Thanks good teaching👌👍👍👍👍👍👍👍👍👍👍👍👍👍🙏🙏🙏🙏🙏✌👋

@1AAuto 3 года назад

+Salvador Gutierrezr Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

@gogatbilisigeorgia 3 года назад

@@1AAuto Top of the radiator is hot and half is cold, thermostat hose is cold too, but there is hot air from AC. what is the problem?

@LegoDork 3 года назад

@@gogatbilisigeorgia Your splines need reticulation.

@wayne2fun 2 года назад

Yes like your video but it is well I was hoping that you would show actual checking which module door actuator was bad I need some help deciding which one I should replace I have a O6 Ford Freestar which has passenger driver and back so I’m assuming it has three different ones the passenger blows cold and driver side blows hot air even on cold But do not know which one to replace it has so many different ones could you help thanks have a blessed day

@jimmyhailey4019 2 года назад

I’m having the same problem on a 2018 Acadia. Dual ac. Please let me know if and how you fixed yours.

@wayne2fun 2 года назад

I have bought the actual later and it goes above the driver side gas pedal to the right connected to airbox I will put a video on RU-vid and maybe it will help you thanks thanks