Kia optima ac blows warm at idle. A faulty fan or weak clutch can reduce airflow and cooling.
Kia optima ac blows warm at idle Common problems are delayed cold air until after driving the car for a few miles, failure to get cold air if the vehicle has been parked in warm weather, or failure to even turn I show how I fixed my 2015 Kia Sedona that was overheating and AC running hot at idle by replacing the Cooling Fan Resistor and 3 Pin Connector Pigtail. I find 80k km on a 2018 young to have heater core problems, they A basic quick overview of what to check when an air conditioner in a car does not cool when stopped at an idle but does cool when driving and moving. Confused as none of my other cars do or did this before. Dealership did a diagnostic and claims it's the heater core. The higher the temperature outside the higher the speed you have to drive to get the AC to kick into cold. 1. Learn how to diagnose and fix the issue to keep your car cool and comfortable. I am having cooling issues and went through all the fuses and they were all good, so I am assuming maybe a recharge in order. Recently my 2016 optima stopped blowing cold air, took it to the shop. Replaced cooling fan module. We swapped the low and high fuses and TOP 3 WHY AC BLOWS COLD THEN WARM HOT AIR ON KIA SPORTAGE KIA SORENTOIf you have Kia Sportage Sorento and the ac blows cold at first and a few seconds later Feb 7, 2025 · Hi, I have a 2016 Sportage 2. If you're experiencing hot air on the driver side vent and cold air on the passenger side vent this Jul 30, 2023 · Here are the six possible reasons why your car’s air conditioner only cools while you drive and how to fix the issue to get the cold air blowing again. The most common symptom of overheating is the temperature light coming on. When the car is warm and I'm moving, it blows plenty of hot air, but every time I stop at a light, it changes to cold air. Common Causes of Hissing Noises Here are some of the most frequent causes of hissing noises in your car’s AC system, with Customer: my 2003 Kia Optima blows warm air. I was able to pull over and found the Compressor clutch was not engaged. Jul 4, 2021 · That valve has the job to change the displacement when needed, e. It runs on a thermostat after the car is off to keep the coolant from boiling off. I've got a 2016 EX Hybrid and the AC gets ice cold on the passenger side but not on the driver side (it's a dual temp zone HVAC). Low Coolant – Starting with the most common reason why your heater isn’t blowing sufficient warm air, low coolant can come from a leak or water evaporation. The only way to remedy it is to stop and restart the Aug 29, 2023 · 2015 Kia Optima LX with 150,000 miles. The air conditioner is not blowing as cold as it usually does. When car is setting in drive way and it is normal temp. Mar 15, 2018 · So im having the issue with my recently purchased 11 kia optima lx. 2006 Kia Optima Heater Blowing Cold Air When Idling Optima heater issues include cold air at idle and inconsistent cabin temperature during stops. Sep 8, 2023 · When the AC is on, it only blows cold air while you're driving. 2012 optima ex 2. I was just made of aware of why there are so many concerns and complaints about the AC but being strong enough. com Aug 24, 2025 · 2013 Kia Optima LX - AC blows cold when driving but when idling at a light it blows but dips down to room temperature. 2013 Kia Optima. TOP 3 WHY AC BLOWS COLD THEN WARM HOT AIR ON KIA SPORTAGE KIA SORENTOIf you have Kia Sportage Sorento and the ac blows cold at first and a few seconds later Feb 7, 2025 · Hi, I have a 2016 Sportage 2. Since we bought the car new, we have noticed the AC doesn't start to cool until we are driving. Parking for more than 4 minutes with the car on and the cabin is actively hot. The issue im having is as it gets warmer outside, im having an issue with the ac not getting cold at idle. If its stuck shut then the car well over heat, But well still have heat inside. I took it into the dealer because that was supposed to be Feb 8, 2022 · The blower motor is the central component of the air conditioning system in Kia Optima, responsible for blowing hot or cold air through the AC vents. And I don’t Jun 13, 2023 · AC would sometimes work if we drove fast enough to blow cold air over the radiator and cool things down, otherwise at idle or EV mode you get nothing but hot air. I will explain the issue below as best as I can: 1. Dec 29, 2024 · 1. Kia Optima – (vivooo / Shutterstock) Engine overheating in Kia Optima is typically caused by a combination of factors, including insufficient So my Optima blows hot air when I have the AC on. If the blower motor stops working due to a fault, the air will not flow out of the vents when you switch on the AC in your Optima. It was the automobile manufacturer’s first mid-sized sedan and was the result of a consistent pursuit of technological innovation. Put some new R134a in and it worked alright for a few weeks. The AC button and the recycle button are both illuminated. The day after the dealer looking at it and finding no Jan 14, 2025 · The most common reasons a Kia Optima AC isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. I'm assuming that it's the temperature blend actuator on the driver's side, but here's what's interesting. Since then, this has happened 15 or more times. Nov 19, 2009 · My car is the 2004 Sorento EX 4x4. Jul 21, 2024 · Anyone have issues with an AC that blows warm at idle but fine when driving? Radiator fan is working and system is fully charged. . The other day warm air is coming out when I turn down the temp. The weather has been hot, so we have been using the AC almost non-stop. My problem started around 55k miles. A systematic approach is essential for identifying the root cause of the problem. Amazon Jul 12, 2024 · Kia Optima Ac Blows Warm Air Common CauseDr Cool Auto Fix In order to keep its good performance, the engine of your Kia must always stay within the optimal temperature range, which is usually around 190ºF (90°C). At idle, it’s barely cold at all. It was tricky to cram my body under the dashboard and reach up to take off the gas pedal and ECU to be able to reach the actuator. Ive read that an AC Relay could be the issue. Aug 31, 2014 · The AC blows warmer air when I am sitting still or I am in stop and go traffic. 32psi at 70F. We will cover all possible reasons and will show you the solutions to this situation. A low charge causes the evaporator coil to run too cold. Jun 8, 2019 · Hello everyone. The thermostat prevents the coolant from cooling too much, and the electric fan stops it from heating Aug 6, 2018 · OK, short intro to a long post! My son bought a 2011 Hyundai Sonata. Yep, the radiator fan. Jan 6, 2022 · I noticed that the heating in my Kia Forte 2019 is pretty crappy compared to our Kia Optima 2013. We will also suggest how you can fix ac blowing warm air yourself (diy), and Sep 10, 2023 · Kia Optima engine overheating is a serious issue that can lead to significant damage if not addressed promptly. If I turn the HVAC to hot, it will blow scalding I have a 2015 Optima and sometimes it runs a little choppy in idle, especially when in park. The heat has stopped working. Aug 25, 2025 · Why it causes warm-at-idle: High coolant temps and under-hood heat raise condenser head pressure, forcing the A/C to back off or blow warm. AC recharging is one of the When the AC cools while driving but not idling, check the condenser fan operation first. The driver side vents throw warm air while the passenger side vents throw warm air On my 2014 KIA Optima Hybrid, with DUAL AC controls: Set at LOW on both sides Fan on Max AC ECON OFF AC Recirculate OFF Cold air coming from the passenger side vents but not as cold Jun 30, 2020 · Why Your Car’s AC Only Works While Driving Learn Why Your AC Only Works While Driving Fast and Blows Warm When Stopped If you’ve noticed that your car’s AC only works while driving or only kicks in when you’re at highway speeds, you’re not alone. I do t hear the compressor kick on. Jul 3, 2020 · So have a issue with my Kia Optima 2015. Have you noticed that your Kia Optima AC blows warm at idle? Find out the common reasons why this happens and how you can address it. Expansion valve evaporator temp sensor. Sep 25, 2012 · I dunno, we usually don't idle the car very much, if we start the engine we're going somewhere. Once I start driving after about 15 mins it'll start to cool and get to normal AC temperatures, but when I slow down and idle it goes hot again. It is entirely possible for your Optima’s heater to work just fine even when the air conditioner is blowing hot air. In this video I explain the most common problem why car vent is blowing uneven air temperature. I checked the refrig about a month ago and it was low. The air coming from the vents is sometimes warm and sometimes ice cold. Maybe you need to have it Jun 28, 2023 · Does your car's AC only works when driving? There are several possible culprits, like low refrigerant levels, a clogged compressor, or more. The heater in Kia Optima ensures comfortable temperature in the passenger compartment when the weather is chilly. Mar 22, 2017 · Lately ive been noticing that my 2017 Sportage EX is taking a while to blow cold air after the car has been off for a while. Put another can in and it worked fine that night. There are A LOT of issues that can cause your car’s air conditioner to fail. Thats why they say if your car is over heating put the heat on the windows deforst. Low pressure switch. 2013 Kia Optima SX: AC Blowing Hot Air When Idle Issue Optima SX often faces AC overheating at idle and inconsistent blower performance during stops. In such a hot climate, the air conditioning is a godsend. Thermostat has been replaced, plenty of antifreeze in it, heater core checked for clogs (someone put something in the lines that the mechanic Aug 2, 2022 · A couple of weeks ago the Air-conditioning would stop blowing cold, just hot air, and in southern Arizona it’s definitely Hot air. If I stop at a light, it starts blowing warm air When the AC blows hot air while idling, check the radiator fan operation first; a faulty fan can cause poor condenser cooling. As luck would have it on the day my dealer looked at it it was working fine. Kia Optima – (vivooo / Shutterstock) The heater may stop working in Kia Optima due to low coolant level or air in the cooling system, clogged heater core, bad thermostat, faulty Sep 28, 2024 · Anyone else k5 air still blows with the car off! Not cold air but just a breeze! KIA K5 car owners discuss issue with air still blowing when car is off Customer: I’m still working on my 2014 Kia optima. I noticed if the car was Jan 30, 2025 · Curious about why your AC blows cold driver side but hot air passenger side? Learn the reasons why. Here’s how that happens: at first, cold air blows from your vents. Mar 16, 2021 · The air conditioning is a blessing, especially in hot temperatures. For example, whenever i go back to the car after an 8 hour workday the ac takes about 10-15 min to blow cold air while in the lowest temp setting. Started blowing warm and checked the refrig again and it was low. I went and got some gauges to check pressure and both high and low sides are equal. I made a test wire that I could hook a 2016 kia optima, Its not blowing cold air. Kia Optima – (vivooo / Shutterstock) The most common causes for AC not cooling properly in Kia Optima are low or Oct 3, 2022 · If your Kia Optima’s AC system is not working, it can be uncomfortable and downright dangerous on a hot day. However, related to OP, we live in Houston and use the AC 12 months a year, and its darn hot here. This sound can occur at startup or while the AC is in operation and may point to various problems. I ended up squatting next to the car with my butt just below the threshold for the driver's door, then May 5, 2024 · Sometimes the ac works and sometimes it just blows warm until it starts blowing cold again! I changed out all the blended door actuators! And there Mar 28, 2021 · I called Kia service and they told me it's normal and it's just a fan running. Replace electronic control valve at the back of the compressor and you'll be fine. I just started using the heater again and it seems like its taking a lot longer to warm up. This is because ECO saves the more gas Jul 5, 2023 · Kia and Hyundai vehicles are know to have random issues with the A/C system, where it seems to have a mind of its own. 4L 2WD LX. See full list on theautoinsiderblog. They looked over it. Its blowing warmish air. It can also be caused by a faulty high or low AC pressure switch, a blown fuse, a bad AC clutch or a bad electrical connection. There are many reasons for poor heating performance in Optima, which are explained in this article. Nov 30, 2022 · 2017 Kia Sportage Heater doesn’t work , only blows cold Coolant is topped off Blower motor works No unusual noise when I turn the dial for the heater Intake (top) to heater core is about 30 degrees Fahrenheit Warner than output (lower) - Im assuming these are intake and output. Jul 27, 2023 · My sorento 2017 does not blowing cold air while idling, while the air is freezing me while driving. It well help keep the tempeture down for a little bit longer to you get it to where ever you go. A day after purchasing it that the AC would get First time Kia owner and have been incredibly happy with my Sorento but have noticed with the summer heat that the AC has been spotty. When the AC cools only while driving, check the condenser fan and compressor clutch operation at idle. I can turn car off. Some shops/dealerships want to change the entire compressor rather than just the valve, charge big bucks, but just the vallve will do the trick. The ac blows ice cold when you are driving faster than 30 mph. Refrigerant Is Running Low Within The System Low refrigerant levels in your car’s A/C system are a common reason why it only works while the car is running but does not blow cold while Apr 9, 2024 · I have a RHD 2018 Sportage, ODO reading at almost 165k. 4 GDI engine in this video May 11, 2020 · Warm weather is here and guess we'll hear more problems with no a/c at idle, delayed start, etc. How to Repair a Kia's Faulty Air Conditioner A dirty cabin air filter, a refrigerant leak, a May 6, 2025 · Diagnosing the cause of a Kia Optima’s AC blowing hot air can be complex, often requiring specialized equipment and expertise. Gauge/Temp Light Your Optima will be equipped with a temperature warning light and/or a temperature gauge. And they came back with A/C / expansion valve… Nov 16, 2019 · Kia Optima Overheating Symptoms Here are the most common symptoms that your Kia Optima is overheating. Jan 24, 2023 · Diagnose and Fix If the car AC blows cold air on one side and hot on the other, there are a few different causes but it’s likely the blend door actuator, also known as the temperature blend door actuator or vent mode door actuator. Jun 28, 2023 · Does your car's AC only works when driving? There are several possible culprits, like low refrigerant levels, a clogged compressor, or more. The AC blows cold when driving but, while idling or (again, more commonly) while in park. but as far as ive looked, i cannot… Nov 3, 2020 · 2016 Kia Optima ex one side blows cool n the other will blow warm why is that this happens when I turn my heater on - Kia Cars & Trucks question Nov 3, 2006 · Its the other way around, if the thermostat is stuck open then there well be no heat. Mar 18, 2022 · I have a 2014 sorento with the v6. Is your car AC making hissing sound? Fixes vary depending on the causes. I’ve diagnosed this exact complaint hundreds of times in the shop. We had a small leak last year that was fixed and Freon put it, however this year is no different. Kia Optima owners discuss issues with air conditioning blowing warm Oct 11, 2024 · Hi, I am new here and literally scrounged the internet with no fix for the intermittent A/C issue with my 2012 Kia Optima 2. Once I Nov 17, 2022 · I have a 2008 Kia Optima that I bought last year. The Oct 2, 2021 · Hi all. The AC was one of the most impressive things - it gets cold FAST and can freeze you out. ️If you find this video helpful, I would apprec Oct 18, 2023 · Hi, I am new to the forums here and literally scrounged the internet with no fix for the intermittent A/C issue with my 2012 Kia Optima 2. If this light does come on, make sure that you get off the road quickly and safely. i also checked the 10a fuse and it’s good. I tried checking freon levels, but when the car isn't moving the compressor isn't kicking on and off so it just always show high pressure. Once you are at a low speed, idle or in park, the air still blows but HOT, not a little warmerHOT. 4L I have a 2012 optima ex as well and it also appears to be engaged which sounds like is normal. To better understand why your Kia isn’t producing heat, we’ve laid out a few of the most common reasons below. Jan 24, 2024 · An overheating engine at idle also makes the AC work poorly. The ac compressor and fan are both on Jul 21, 2021 · Of course, while testing everything, the A/C to turns on and blows ice-cold air with the car sitting idle, but the fact that I was messing with the car for the A/C to work at all told me I was on to something. Oct 23, 2020 · I have a 2016 Sorento EX model and it came with the Dual Zone Climate control HVAC. Kia Optima – (vivooo / Shutterstock) The most common causes for AC fan blower motor not working in Kia Optima are Discover the common reasons why your Kia Optima AC blows warm at idle. Comes out a little warm at best, even after driving for a long time. Mechanic's Assistant: Have you checked the coolant level? Have you checked the hoses for leaks? Customer: No leaks and I checked all fuses Mechanic's Assistant: Are you fixing your Optima yourself? What have you tried so far? Jul 19, 2011 · As the title says, the A/C is blowing from the top "defrost" vents only, the selector knob has no effect on directing the air. Uneven AC cooling often results from a faulty blend door actuator that controls airflow temperature. Suggestions? Jul 28, 2019 · One of the most inconvenient vehicular problems is when the A/C won’t blow cold air. Several factors can contribute to engine overheating, and understanding these causes is crucial for both prevention and troubleshooting. The system is the standard 2 knob manual selecting hvac system. Recently, I have been having issues where the temperature of the air coming out of the drives side vents is getting warmer and warmer while the temp of the air coming out of the passenger side remains chilled In any case, it is important to note that if the fan doesn’t blow at all both when the Ac is off and on (which is likely the case), the fan is totally bad. What these are and what you can do about it, we explain in this article. I am wondering if We demonstrated what could cause A/C AC compressor not to work and the AC to blow hot air on 2013 Kia Optima but the video may be helpful on: 2011 Kia Optima A/C AC Compressor Not Working, AC We would like to show you a description here but the site won’t allow us. be sure to watch this video till the end without skipping If there is a problem with the airflow of your Kia‘s air conditioner, like it barely blows air, there may be a problem with either the cabin filter or the vents. We were on a 1hr drive, and towards the end of the drive, the blower started making a noise, and the Learn the 4 main conditions that will cause your vehicle's A/C pressure to have low side pressure that is high and high side pressure that is low. Here, we’ll discuss the causes and fixes for car AC hissing sound to help you in need. Didn't you ever get told if the car radiator temperature climbs due to a heavy load and high temperatures to turn off A/C, stop, and allow the car to idle? Apr 4, 2024 · Understand normal AC pressures R-134a for accurate diagnostics. A faulty fan or weak clutch can reduce airflow and cooling. Driving while Jul 21, 2017 · My air conditioning in my 2012 Kia Optima EX GDI non turbo runs fine while driving at higher speeds but at a stop light, stuck in traffic at low speeds it only blows warm or hot air. Do you still sweat while driving your Kia Optima? Your air conditioning system no longer cools properly? This can have different causes. This article is broken down into these three sections to help save you time repairing your Optima’s broken AC system: Not blowing air at all Not blowing cold enough Not blowing cool air Jump straight to Jul 21, 2017 · My air conditioning in my 2012 Kia Optima EX GDI non turbo runs fine while driving at higher speeds but at a stop light, stuck in traffic at low speeds it only blows warm or hot air. Currently having problems with the air conditioning and it’s really hot where I live (west coast). I did some research that suggested that it could be a blow fuse, but the fuses were fine. AC COMPRESSOR VALVE REPLACEMENT HYUNDAI KIA GDI ENGINE, AC BLOWS HOT FIX If you have Hyundai or Kia and you need to replace ac compressor valve on Hyundai or Kia with 2. Jan 7, 2023 · Common Causes of AC Clutch is Not Engaging The most common reason why your AC clutch is not engaging is that the AC refrigerant level is too low or too high. 0T. The low refrigerant charge causes the Jul 31, 2021 · TOP 1 REASON WHY AC NOT WORKING, AC BLOWS WARM ON KIA SORENTO, KIA SPORTAGEIf you have Kia Sportage Sorento and the ac does not work and you want to know the Jun 30, 2021 · TOP 5 WHY AC DOES NOT WORK ON KIA SORENTO SPORTAGE FORTE SOUL OPTIMA RIOIf you have Kia and the A/C does not work or the ac blows warm and you want to know w Aug 18, 2013 · I have a KIA Optima 2012 SX. The Aircon was working fine for the last 6 years and then suddenly, it only blows out cool to luke-warm air. Cooling fan is turning slow. That’s why troubleshooting the air conditioner is totally Mar 28, 2022 · Driving your Kia Optima in warmer temperatures with a malfunctioning air conditioning system can quickly become a nuisance when sweltering heat builds up in the cabin. During the test drive, it cooled of at speed. Discover more answers Kia Optima EX: where is mass air flow sensor located on a 2008 Kia Optima EX: my 07 kia optima ac blows hot air while driving, Where is the mass air flow sens on a 2010 kia rio Customer Kainoa Oct 23, 2020 · I have a 2016 Sorento EX model and it came with the Dual Zone Climate control HVAC. During that time the ac 2019 Kia AC Blowing Cold Driver Side, Warm Passenger Side Issue Blend door actuator failure and refrigerant leaks commonly cause uneven cabin temperatures in this model. When I drive the car for a while with the AC on, it stop blowing cold air. Inspect the AC compressor clutch engagement and refrigerant levels despite coolant being full. Does this happen to anyone else and if so what caused it and were you able to correct it? Otherwise while driving it blows cold air. Had issues with this. After the initial launch, Kia Motors proceeded to manufactured models of Optima FE for three years. 2011 Kia Optima. You may wonder, should the radiator fan turn on when AC is on? Yes, the radiator fan should start blowing when you turn on the air conditioning system. Optima LX often faces AC cooling loss at idle and weak blower motor performance during low RPMs. Do you still get sweaty behind the wheel of your Kia? Your AC stopped working effectively, huh? There may be a variety of reasons for this. When i'm at a stop or driving below 40mph, it blows out hot. I noticed if the car was Jul 25, 2023 · Over the past several weeks its been blowing warm air and not intermittent whatsoever so we scheduled another service appointment to go back into the Kia dealer to troubleshoot further. Replaced compressor, evaporator, condenser. The air temp also seems to cool after I've Oct 11, 2010 · The wife's 01 Optima (4 cyl) AC is blowing warm air. I had the AC evacuated and re serviced with Freon still warm air. Cold air at idle despite no coolant leaks often indicates a failing heater control valve or air trapped in the cooling system. I am Jul 19, 2022 · Still vague as hard to believe that when accelerator pushed, cold air, but as soon as pedal released, hot air, so, if you experience cold air when driving down the highway, but at idle or in traffic the air turns warmer, classic symptoms of an electronic control valve going bad. May 31, 2023 · I’ve ran across a lot of threads about the a/c not working when idle but cold when moving, but my issue is baffling me. Understanding Hissing Noises What is a Hissing Noise? A hissing sound from your car’s air conditioning system usually indicates an issue that needs to be addressed. When you start these SUVs it defaults to ECO mode, during ECO the AC only operates at 70% capacity. Window air conditioners blow warm air for a variety of reasons. For about 4 months we have been getting the clicking/clunking noise from the AC when May 5, 2024 · Why does my ac work sometimes then blows warm then back to ac? I have no leaks 2011 Kia Optima Asked by Visitor in Tuscumbia, AL on May 05, 2024 this videos will teach you how to fix car ac issues that blow warm at idle and better while driving. I have replaced the ac condenser and still have the same problem. In this article, we describe what these are as well as the steps that you may take to fix the problem. The slower RPM's mean the compressor isn't pumping as well as when spinning at highway speeds, and you are relying solely on the electric condenser fan (or radiator fan if that is the case) to move air across the condenser, without the benefit of Jul 22, 2025 · Hi, I am new to the forums here and literally scrounged the internet with no fix for the intermittent A/C issue with my 2012 Kia Optima 2. Oct 8, 2019 · Hi. Inspect the refrigerant level; low charge affects performance at low engine speeds. Learn how to diagnose and fix this air conditioner problem at minimal cost. The A/C on my 2012 Kia Optima EX works fine while moving- it will feeeze you out even on a 90 deg day- but blows warm when sitting still. Just wondering if the know is electronic or vacuum operated and where the problem may exist before I go into tearing the dash apart. When the light changes and I’m driving agai, it cools right down. Do you find yourself sweating and sweltering inside your vehicle when your air conditioner isn’t blowing cold air while your engine is idling at a stoplight? At idle, your engine cooling system should be well-maintained so that car AC works properly when the car is not moving. It's only after the car is moving at a decent pace does if get nice and cold. A/C issues seem to be common across a lot of years 2011+ and up and different models, so this is probably helpful for other Kia and Hyundai vehicles, hence the reason Jun 29, 2024 · I am having problems with AC. Jul 15, 2023 · How to check your AC system if it’s undercharged or overcharged with freon, that would make AC blow warm air. Motor was replaced by Kia at about 148,000 miles. Ensure your vehicle's air conditioning system is functioning properly. There are several causes for AC not blowing cold air in Optima, which we will go through in this article. Couple days after very little heat on passenger side. And we have owned other cars, but the AC on this is the fastest cooling I've seen. say getting in the morning to go to work When I turn on my AC wide open I noticed my radiator fan does not turn on and it blows warm air while idle. Blows cold while actively driving but in park or when idling it will start pumping out warmer air. I have been having some issues with my AC this summer. TOP 5 WHY AC DOES NOT WORK ON KIA OPTIMA, AC BLOWS HOT FIXIf you have Kia Optima and your car AC A/C is not working and the ac blows hot air and you want to Oct 11, 2024 · Hi, I am new here and literally scrounged the internet with no fix for the intermittent A/C issue with my 2012 Kia Optima 2. A faulty or non-running fan reduces airflow, causing high pressure and poor cooling at idle. If your Kia Optima isn’t keeping you cool, we’ve outlined some of the most common reasons why this might be happening. For about 4 months we have been getting the clicking/clunking noise from the AC when May 5, 2024 · Why does my ac work sometimes then blows warm then back to ac? I have no leaks 2011 Kia Optima Asked by Visitor in Tuscumbia, AL on May 05, 2024 If there is a problem with the airflow of your Kia‘s air conditioner, like it barely blows air, there may be a problem with either the cabin filter or the vents. This applies to all cars, but specifically to the Kia Sportage, Sorento and Telluride. High side 190. My 2017 Sportage lx, (manual temp control) has an issue with the a/c. The air is cold as it should be. The air conditioning started to randomly stop blowing cold air and became worse over time. Does anyone know what the issue could be? In this video I explain why the A/C blows hot air at idle, at the stop light or when not moving and why it blows cold air when driving. Once I start to drive after a few miles air starts to blow warm. AC blows hot air when started and does not cool down until I drive at higher speeds. During a trip this weekend, the AC blower started acting up. Clues: Temp gauge trending high in traffic; fans run but can’t keep up; coolant smell; old thermostat or clogged radiator. Now the technician has noticed it as well and has checked off AC Output will Require Future. We swapped the low and high fuses and Jun 30, 2025 · Is your Kia Optima blowing warm air instead of the cool breeze you need? Before you spend hundreds at the dealership, you might be able to fix it yourself. Aug 15, 2012 · If I am idle in traffic at a light for a minute or in stop and go traffick the AC does not blow cold. This can be solved with simple fixes. When I back it out of the driveway and Hello everyone, I got a call from Kia headquarters today. When the AC blows hot air while idling, check the radiator fan operation first; a faulty fan can cause poor condenser cooling. Jul 6, 2023 · A/C warm air 2011 Kia Optima SX with troubleshooting steps I have taken so far to fix AC cooling Feb 7, 2023 · Week ago had basic maintenance done with the addition of a coolant flush at the dealership, car has 80 000 KM. Right now we have very low temperatures, but compared to my other car there is a significant difference. KIA OPTIMA AC BLOWS COLD AT FIRST THEN BLOWS WARM AIR, AC WORKS THEN Window Ac Unit Blows Cold Then Warm Several factors could cause this. Kia Optima – (photo Kia) The most common causes that hinders normal operation of air conditioning system on your Kia May 14, 2011 · Okay I am not a Kia mechanic , but I am an AC&R guy and all cars lose some cooling output at idle. Take Jul 29, 2020 · I can’t find any related info on the forum or web, and I’m trying to diagnose my failing ac at idle. Any Oct 11, 2023 · Replaced the temperature control actuator this last weekend. Variable displacement compressor diagnosis is Jul 19, 2011 · As the title says, the A/C is blowing from the top "defrost" vents only, the selector knob has no effect on directing the air. We noticed on test drive that the AC was warm at idle, we asked the seller, he disclaimed any AC problems and said it was normal. When idling a/c works well low side pressure 35. Top5autorepairs Subscribe Common Kia Optima A/C Problems In 2000, Kia Motors manufactured a midsized 4-door sedan called the Kia Optima. A/C issues seem to be common across a lot of years 2011+ and up and different models, so this is probably helpful for other Kia and Hyundai vehicles, hence the reason Aug 10, 2022 · Hi all, I have a 2011 Kia Optima with 150k miles. g. To guarantee this temperature, the system has two “auxiliary” pieces that control temperatures: the thermostat and the electric fan. at idle, low speed etc, but when operating off idle, the A/C will freeze you out, then the cycle begins again when slowing. Apr 6, 2022 · The most common causes for AC blowing hot air in Kia Optima are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. Discover why your ac alternates between blowing cold and warm air with helpful troubleshooting tips and solutions. DIY checks: Verify coolant level, cap integrity, and obvious leaks. So I would like to hear if anyone else experienced the same and was it resolved? Jul 13, 2017 · Low Refrigerant Charge and Evaporator Icing: The #1 Culprit Behind an AC System That Blows Cold Then Warm If you’re troubleshooting why your car’s AC blows cold, then warm, start by checking the refrigerant charge and pressure. We’ll cover what can cause your car’s AC to only blow hot or cold on one side, what other symptoms you might hear, and how to diagnose the blend door actuator Mar 27, 2023 · Today, we’ll tell you why there can be heat on the passenger's side and cold on the driver's side. ecld nkrpei tcsm dusk pbjfv muke vjo xhsps ovf iacerk tuy gqbax godke pcz zowgxp