Ac not working due to high engine temperature. It tells you that the AC is off due to high engine temp, but that code actually sets when the vehicle fails to reach operating temperature within a set time frame. Coolant cannot circulate properly through the engine to the radiator if the thermostat does not open fully. levels look ok but engine lumpy. Day 10 and 10min from cold start I get a dash warning ‘A/C off due to high engine temp’. Aug 24, 2015 · Just had a message up on dash to say "a/c off due to high engine temp". I have a 2012 chevy cruze and I am thinking its a bad thermostat? Has anyone experienced this issue? Jan 2, 2019 · Then a few miles into my journey home, the dash came up saying that the AC was off due to high engine temperature. The fan kicks on, and the only way to reset the warning and turn off the fan is to reset the battery. We would like to show you a description here but the site won’t allow us. Just got Dec 8, 2016 · Morning all Out of the blue driving to work, my 2010 2500HD tells me 'ENGINE HOT, A/C TURNED OFF'. I checked my engine temp gauge, and it hadn't moved at all - and didn't move the entire 30 mile journey home (still in 1C). Oct 13, 2022 · in this blog post we discuss why a cars AC might shut off if the engine temperatures get too high , what is the cause and fix? Oct 5, 2024 · The AC turns off due to high engine temperature, and the gauge not working indicates a possible sensor issue. I checked under the hood and the engine isn't any hotter than normal. When the AC shuts off due to high engine temperature, check the radiator fan operation and coolant levels first. Though it’s not the only thing you should check. Jan 27, 2018 · I am working on a 2013 1. I went and started the car, the coolant in the expansion tank instantly disappeared, the high engine Mar 16, 2021 · The air conditioning is a blessing, especially in hot temperatures. What’s the reasoning? Because running the AC will add more heat to the radiator due to heat transfer from the condenser. The problem persists. — A taste of early summer continues this weekend! Highs will push into the mid and upper 80s today, record-breaking territory for many of the FOX13 viewing area. A Chevy Cruze has two temperature sensors that are located in different positions. I refilled the coolant, bled the radiator, and everything was torqued to spec. Let's replace both temperature sensors. When the engine temperature gauge stops working and the AC turns off, it could be a sign of engine overheating. I bought a new 2024 GMC 2500HD AT4 a couple of months ago. Jul 7, 2019 · 16 Verano. Got to work and did not leave until 5PM. The dealerships Hot air no leak! 2012 Chevy Equinox 3. Oct 14, 2021 · There are several causes for the “AC off due to high temperature” message showing up on your dash. Warning Messages/Lights: If any dashboard lights illuminate, or the message “A/C off due to high engine temperature” pops up on your car’s display, your car is likely conserving energy because your cooling system is struggling. This happens because the AC draws power from the engine shaft, and this increases the overall heat buildup in your engine. AC off due to high engine temp. A faulty radiator fan relay or motor can cause insufficient cooling, triggering the warning. Jul 22, 2018 · Hi, I got this message ac off due to high temp and my fan keeps running with my temp gage stuck at cold. Feb 28, 2025 · BG Automotive in Colorado explains why your engine is running too cold and not reaching optimal temperature. Oct 14, 2021 · If this happens, it will not send the correct signal to the vehicle’s computer and this may cause an “ac off due to high engine temp” message on the dashboard. Nov 15, 2025 · 2014 VF International Due to coolant leaks I recently had the Thermostat and Water Pump replaced. Aug 31, 2022 · Learn why your AC may turn off due to high engine temperature and the steps to prevent overheating and maintain optimal vehicle performance. Coolant leaks may be difficult for a beginner to find, which makes taking your car in for repair a smart idea if it is not running Nov 10, 2024 · Car overheating when the AC is on? Find out common causes and simple fixes to keep your engine cool and stress-free. Nov 9, 2022 · What are the causes and how can you fix when your car AC stops working when hot outside? Let’s find out the truth with us in the article! Jan 18, 2018 · Would a bad temperature sensor or thermostat cause me to get the "a/c off due to high engine temp" and not cause the fan to run? I did not have any codes (and no codes pending). backyardmechanic. No smoke coming from exhaust Jan 26, 2019 · I get this warning ("AC Off Due to High Engine Temp. New to the forum. Mar 22, 2023 · AC turned off due to high engine temperature ac temp astra gtc dash engine temperature Jump to Latest 5. Check out our list of the 3 most common causes and learn how to fix your air conditioner. You may have already caused significant engine damage if you have driven with this warning on for more than a few hours. You can call a mechanic if you notice that any of these parts are leaking or ready to wear down completely. Within the last week I’ve gotten “AC off due to high engine temp” and the gauge stays on the “cool” side. Engine temp gauge doesn’t move, drove to the gym and after shut off engine fan was still running. i had a 2nd water pump fitted a month ago along with a 2nd starter motor. Nov 12, 2021 · If your car’s AC says AC off due to high engine temp, you should also check your radiator and cooling fans. Let's get some heat back in our 2013 Chevy Cruze. When the engine temperature rises above a certain threshold, the AC compressor automatically shuts off to reduce the load on the engine, prevent overheating, and avoid potential damage. This situation can be alarming and inconvenient. After 5-10 minutes of having the ac on, I noticed my display reading “ac off due to high engine temp” which was strange because 1) the ac still seemed to be going, and 2) the engine temp was not reading as high. Common causes of engine backfire include a lean Encountered the 'AC Off Due to High Engine Temp' error on your 2011 Chevy Cruze? In this video, I'll show you how to resolve this common issue by replacing the temperature sensors. Car was running fine for 10 days after repairs. 4. We will explore the causes of AC off due to high engine temp Chevy Cruze and provide solutions to help you get your AC back up and running smoothly. My temp gauge has been fluctuating recently. The A/C is turned off automatically to prevent overheating. Stop driving the vehicle immediatly and check all fluid levels. I first replace the thermostat, then took it to autozone for the obd and it pulled the code for the coolant temp sensor. Find out the symptoms, causes, and solutions for car overheats when AC is on. Oct 8, 2018 · I've been able to get help from this forum in the past by reading old posts, but I haven't found a solution for this one yet. Ignoring this can lead to severe engine damage. 2K subscribers Subscribe Jul 22, 2025 · High heat puts extra pressure on your air conditioning system, making it more likely to reveal hidden issues. Get expert repair tips from Auto Vehicle Parts. Easy fix!!! 4 SYMPTOMS OF A BAD AC PRESSURE SWITCH | How to tell if AC Pressure Switch is BAD Apr 12, 2021 · The AC will not cool when the temp sensor goes as a safety feature so you don't overheat the engine. C. The sudden buildup of pressure inside the intake manifold that results from a backfire can crack the heated element inside the MAF sensor causing it to fail. Cause: After switching off the hot engine the coolant temperature could reach above 130°C. Mar 24, 2023 · The Ac Off due to high engine temperature equinox is a common problem many people experience while driving their car. Sep 9, 2023 · Hey guys. concerned that without a SES code it will be like chasing a ghost. Regularly inspect the radiator, hoses, fans, and thermostat. I have replaced the thermostat, water pump, serpentine belt, bled the coolant lines numerous times, and disconnected the battery. 1 day ago · MEMPHIS, Tenn. I had it towed back to the shop and they said it was the thermostat sticking open and won't shut, and it would need to be replaced. Was not hot . May 1, 2020 · Temperature gauge is on a flatline cold My mechanic thinks that I have no coolant in the car, and he advised me to fill the reservoir 3/4 of a tank with water so that I can make it with an intact engine. . Coolant is full. This action stops the AC from working, prioritizing engine cooling over cabin comfort. I then noticed the temp gauge had not moved. The temperature gauge is not working a Yesterday morning started my car, no issue or message. Oct 16, 2024 · While driving on a hot summer day, it’s very common to face AC off Due to High Engine Temperature issue. Check the condition of all hoses, too. Whether your car only blows hot air when driving or the system just won’t cool at all, here are the common failure points of your vehicle’s A/C system and where to get them repaired or replaced. The problem can be fixed easily, but it can cause a costly repair. I checked my coolant and the car has coolant in it. But why does the ECU make this decision? It’s all about protecting your engine from potential damage. Nov 13, 2019 · The AC off due to high engine temp warning is somewhat intermittent on my 2011 Cruze with 1. Replaced the thermostat, therm housing, and water outlet, ACDelco parts, and I’ve hit a bit of an issue. To reduce strain on the engine, the ECU may disengage the AC compressor clutch. Started happening this winter, one day we got the AC off due to high engine temp message, but the gauge read fully cold. temp gauge doesnt work even after 20 miles and fan on all the time. I wanted to see if anyone else is having issues with their A/C going from cold to hot. Jun 24, 2025 · But anything above operating temperature is a clear sign of stress on the engine cooling system. AC will not turn on due to high engine temp 360 MVP 82. This article will help you to know its possible causes and solutions. Jul 4, 2014 · Cruze - AC OFF Due to High Engine Temp - As I was driving to work this morning (in my 2013 Cruze) I got this nice message on my dash screen stating AC OFF Due to High Engine Temp . . Replacing the temperature sensor and thermostat is common, but persistent faults may indicate faulty wiring, a failing coolant temperature sensor, or ECU errors. May 13, 2023 · Another possible reason for the AC turning off due to high engine temperature is an electrical issue. org/erro Aug 30, 2021 · “AC off due to high engine temp” and “Engine temp too high. 2K subscribers Subscribe The 'AC off due to high engine temp' warning despite a low gauge reading suggests possible sensor or wiring issues. Since the computer can't determine the actual temperature of the vehicle, it triggers AC shutoff so the clutch doesn't run and over exert the engine if there is a cooling issue. fawcett98 Discussion starter May 10, 2024 · Overheating causes many inconveniences to car owners, especially with the AC on. It can also be set by high resistance in a coolant temp sensor causing it to report a lower than actual temperature. The radiator fan also kicks on as soon as the AC kicks on. however, the purpose is similar and I would recommend replacing both sensors. Idle engine” messages appear. Late 2000s chevys all seem to share this issue and here is how to pull over, fix it, and keep trucking. What these are and what you can do about it, we explain in this article. The water temp gauge is stuck at the lowest reading as if it's not working. If your temp gauge shows cold when your engine is The engine control unit (ECU) detects the rising temperature. This video discusses a common issue with Chevy Cruze temperature gauge and offers solutions for high engine temperature causing AC to shut off. These include: Your engine temperature is too high. I can get in the truck and drive thru the neighborhood and it will blow as cold as ever. https://www. Learn common causes and how to fix the issue. Also, the cooling fans ran at full speed and the temp gauge did not work. The PMC is used to monitor your engine’s temperature, and if it detects an increase in temperature, i Jan 25, 2024 · To prevent your AC from shutting off due to high engine temperature, make sure your vehicle’s cooling system is in good condition. Your engine cooling system is not working properly. Jul 28, 2018 · The sensor light came on saying "AC off due to high engine temp". When the car’s engine is beginning to overheat, the car’s computer knows to drop non-vital functions to try and reduce the heat and engine strain. This issue can occur if your vehicle’s temperature gauge is not working properly. This is how you fix a condition where your Chevy vehicle says that your AC is off due to high engine temp. The engine didn't seem to be struggling, and we weren't overly warm in the car - and I never turn the AC on! Jun 10, 2022 · Besides the problem of car ac turns on and off randomly, sometimes, your car air con blows warm air, driving you to wonder why your car AC stops working when hot outside. In fact my engine temp was not reading at all and was showing the lowest temp possible. 2016 Buick Verano temp gauge glitch. The fan runs fine. If it's open all the time, the engine will take much longer to get up to temperature (as you've noticed), and some/most AC systems are completely paranoid when the engine isn't at it's operating temperature or isn't cooling normally. It's usually a thermostat. Mar 20, 2025 · The “AC Off Due to High Engine Temp” message in your Chevy Cruze can be concerning, but it’s a safety mechanism designed to protect your engine. The blend air door doesn’t switch from the heat to cold air. Mar 2, 2026 · Modern vehicles are equipped with smart protection systems designed to prevent serious engine damage. My wife’s Cruze had a coolant leak and a message that popped up saying “ac off due to high engine temp. The A/C turning off leads me to believe it is a water pump and a thermostat. 0 Coolant sensor replacement (AC off due high engine temp) gavin anderson 39 subscribers Subscribe If engine did start the “AC Off Due To Engine High Pressure” message was displaying and the engine fan was blowing like crazy. the engine oil was around 163 degrees . In this guide, we’ll take an in-depth look at what this warning means Sep 29, 2023 · The AC turns off due to high engine temperature, providing a safe operating condition. So I decided to replace the top engine temp sensor. The PMC is used to monitor your engine’s temperature, and if it detects an increase in temperature, it will shut off the A/C compressor until It tells you that the AC is off due to high engine temp, but that code actually sets when the vehicle fails to reach operating temperature within a set time frame. May 5, 2015 · A. Come to a stop and it switches to Apr 14, 2022 · After I got to work, I researched the issue with "AC off due to high engine temp" and found many people complaining about this issue not only on the Cruze, but multiple GM vehicles. Let's change the thermostat and sensors. Dec 2, 2022 · The AC is off due to the high engine temperature symbol means that the PCM (Powertrain Control Module) detects too much heat in your engine, or the electric cooling fan has stopped working. Jun 9, 2023 · Here are some of the main causes of the Car AC off due to high engine temperature issues and how to fix it. Let's replace the thermostat and This is how you fix a condition where your Chevy vehicle says that your AC is off due to high engine temp. I woke up and started the vehicle after sitting for 7 hours, it was the same. Car has 79,900 miles. No leaks. I have a 2014 Traverse with 63,000 miles My engine temperature gauge intermittently stops working (bottoms out, doesn't move) and along with that, the A/C shuts off If it's open all the time, the engine will take much longer to get up to temperature (as you've noticed), and some/most AC systems are completely paranoid when the engine isn't at it's operating temperature or isn't cooling normally. Engine has 190K miles, runs fine and never have . Left the gym and the same thing happened immediately upon start up. Repeat GM MAF Sensor Failures Blamed on Engine Backfires GM says that repeated instances of Mass Air Flow (MAF) sensor failure on some of their vehicles may be due to engine backfires. just wondered if the pump has gone again. Start my vehicle and get AC OFF DUE TO HIGH ENGINE TEMP as soon as I start her up. 4L Cruze and it is doing the whole "A/C off due to high engine temp". Obviously it's not hot, help? The hardest part of fixing car AC problems is knowing where to start. If your temp gauge shows cold when your engine is The A/C turning off leads me to believe it is a water pump and a thermostat. The thermostat may be faulty and needs to be replaced. At that moment, the air conditioning system shuts down automatically to reduce load on the engine and help it cool Aug 31, 2022 · Learn why your AC may turn off due to high engine temperature and the steps to prevent overheating and maintain optimal vehicle performance. Modern cars have complex electrical systems, and a malfunctioning sensor or wiring problem can cause the vehicle’s computer to receive incorrect information about the engine temperature. After that message the temp gauge continues to rise and says We would like to show you a description here but the site won’t allow us. ” It usually appears on the dashboard when engine temperature rises beyond normal operating range. 0 A/C Blows Warm! Chevy Cruze. Jan 8, 2020 · The DIC message of "AC off due to high temp" comes up and the TC P0128 is stored. May 27, 2018 · For example, if your engine coolant sensor is reporting a high engine temperature, the HVAC head won’t supply ground to the AC clutch relay, and the compressor clutch won’t engage. For more information read here. One message that often surprises drivers is “AC Off Due To High Engine Temp. By understanding the interconnected systems and the common causes of overheating, you can take a systematic approach to diagnosis and resolution. Dec 17, 2012 · The temperature gauge in the cluster would not move, and the radiator fans are running on high. Made three - four stops and it came up every time after a few mins of driving. The ACis off due to the high engine temperature symbol means that the PCM (Powertrain Control Module) detects too much heat in your engine, or the electric cooling fan has stopped working. Driving home from work, same issue but then the I got an A/C off due to high engine temp message 10 minutes after driving. This high temperature causes the thermostat to open until the limit stop and stick in the open position. Car heater not working? Discover nine common causes, warning signs of a faulty heater, and the diagnostic steps to fix it before it becomes a bigger problem. ") only when it's cold outside and the engine's cold. It's crucial to address the underlying cause promptly to prevent further damage to Message on Equinox says A/C off due to high engine temp but coolant is full and gauge is on cold. 8K views 5 replies 3 participants last post by baldrico Mar 23, 2023 callum. Do you still sweat while driving your GMC Terrain? Your air conditioning system no longer cools properly? This can have different causes. Imagine you’re enjoying a comfortable drive with the air conditioning on, only to suddenly notice this message on your dashboard, accompanied by the AC shutting down. I can sometimes drive 40 or 50 miles before the indication and sometimes it's within four or five minutes after starting the car. Jul 28, 2025 · The “AC off due to high engine temperature” warning is a serious issue that can arise in vehicles. Its currently 61 degrees outside and my engine gauge was reading cold. Dec 9, 2022 · The air conditioning system, especially the compressor, puts a lot of strain on the engine while it’s running. The engine cooling fan is not working properly. OFF DUE TO HIGH ENGINE TEMP 5th Gen Camaro SS LS LT General Discussions Mar 8, 2022 · I have a 2013 Chevrolet Cruze and this morning my temperature gauge stopped working and the message"AC off due to high engine temp" came on. I got an "ac off due to high engine temp" while driving, however, the temp gauge indicates at bottom 2010 Buick lacrosse 3. GMC Terrain – (photo by GMC) The most common causes that hinders normal operation of air conditioning system on Jun 18, 2024 · Car is still over heating, say “ac off due to high engine temp” I replaced the coolant hose connector, water pump, coolant temperature sensor, and thermostat. Mar 25, 2010 · Tuesday, with about 1700 miles on my 2010 4 cylinder Equinox, I got a message on the dash that said "ac off due to high engine temperature". 2015 chevy cruze. ac off due to high engine temp chevy Cruze So far, a quick fix to these problems will put you and your vehicle back on track. There's about 220,000. Quick overview of a Chevy Cruze with AC Off Due to High Heat Engine Temp error message. I looked in the coolant reservoir and the inside was coated with and full of chocolate doo doo. Chevy Cruze AC Off Due To High Engine Temperature – Conclusion A circulatory issue might cause an elevated engine temperature. Temp gauge is dead, not working. Jan 31, 2023 · Nevertheless, relax to study through as the causes of this warning includes; coolant leaks, faulty radiator cap, lousy coolant temperature sensor, malfunction of the PCM, and disconnected battery terminals. This never happens in the heat or with a hot engine, which tells me it's not the water pump or the thermostat. What Causes Your Car A/C to Blow Hot Air? Jun 6, 2023 · Top 6 Common Reasons Why Your Car AC Stops Cooling on Hot Days A problem with the condenser is the most likely reason why your car’s AC stops working or performs poorly in hot weather. Sep 7, 2023 · If your ride's AC is not working correctly, it's time to conduct a Chevy Equinox climate control reset. You also appear to be dealing with another problem. The most likely cause of an air conditioning failure like this include: Nov 13, 2023 · As mentioned previously, turning on the air conditioning while the engine has trouble regulating temperatures puts extra strain on the latter. Oct 14, 2025 · AC turned off due to high engine temp? Learn why it happens, how to fix overheating issues, and when to seek help. Trans out to fit thermostat all up $1365. The local dealer found a bulletin that detailed this problem to the letter and Jan 8, 2020 · The DIC message of "AC off due to high temp" comes up and the TC P0128 is stored. I still am on GMPP warranty . So, you can have your car trip comfortably back! Jan 26, 2019 · I get this warning ("AC Off Due to High Engine Temp. How to replace the coolant temperature sensor on a 2016 Buick Verano. sgnhxmfp fsprrxp qdkanlz btvhfve caqdz zjqkrny jydl eisjw vfccc ftcrk