Turn ignition on, with engine off. Using scan tool, check if cooling fan is operating with ECT at less than 209°F (98°C). If cooling fan is off, go to next step. If cooling fan is on, go to step 4). 3. Command cooling fan relay on. If cooling fan operates, go to step 23). If cooling fan does not operate, go to step 5).A seized water pump: Another possible cause of an overheating engine is a seized water pump. The water pump circulates coolant around the engine, and if it seizes up, then coolant will not be able to flow properly and the engine will overheat. 5. A damaged radiator hose: The final possible cause of an overheating engine is a damaged radiator hose.I ask this because the temp gauge staying on cold can mean there is an issue with an open thermostat. This can affect the cooling system and the air conditioning. Typically, however, when that message comes up it's due to a condition in which the engine is running hotter than normal. The car will then turn off the air to keep the engine cooler.so my guess you mean, hot engine races,because cold engines all do that , by design. racing idle hot. engine not hot. thermostat bad. engine hot and Ect Sensor lies, (wires fell off) ISC valve stuck open or wires, bad to it. vacuum hose knocked loose or you cracked it, now sucks air and engine races, (speed density EFI systems.It is known that the temperature sensor on many vehicles, including the Chevrolet Cruze, can get damaged or dirty over time. 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. A Chevy Cruze has two temperature sensors that are ...Not any ping ,knock, leaks etc. Then a few days ago my engine hot turn a/c off displayed and my temp gauge is staying on C.. the car wasn't hot, antifreeze is good at at correct level. The a/c wasn't on in the first place because it was 25 degrees out. Then my amber engine light pops on. I'm about to go disconnect the battery.Yes open. Causing the engine to actually run too cool which can set a fault code (p0128) and disable the a/c system. First off check the temperature gauge and see if it is high or low when this occurs. Let me know what you see when you check the coolant level as well. Again the most probable cause would be a leaking water pump (coolant level ...There are a few common reasons why a condenser fan motor would overheat to the point that it stops working, such as: Lack of maintenance: This is probably the most common reason that causes condenser fan motors to overheat and shut off. Proper and regular lubrication of the fan motor is necessary for the motor to run smoothly.Engine hot a/c off 3 Answers. On the dash my car said “ engine hot, a/c off”. It automatically shuts the ac off and my temp gauge won’t move from C. I pulled over, all my fluids were fine and the engine actually seemed cold not...What Does Engine Hot AC Off mean? The Engine Hot AC Off warning light indicates that the car's electric cooling fan is malfunctioning, and as a result, the engine is running hot or overheating. Notably, overheating is the top cause of engine deaths globally. Thus, you should take immediate action when your engine overheats.1. Use a scan tool to clear the codes. If the ECTS or wiring is open, the "Engine hot, A/C off" message should return immediately. If so, replace the ECTS or check the sensor wiring for defects. However, if the code does not return immediately, this does not automatically mean the sensor is OK.Noticed this on the way home from work tonight. Going to call Cadillac to have them tow it back to the dealer. Oil pressure sat around 40-41. Engine temp gauge was laying flat on 100. Just got oil changed couple weeks back at Sewell and it's now saying 85% oil life.Take the sensor out and the heater then measure each wires resistance, it shouldbe below 0.3 ohms. More than that or a short to ground would indicate a problem on that wire. You would repair the system by fixing that wire ro replacing only that section of wire. I have a 2008 Pontiac torrent. The sensor reads an engine.When your engine is hot and the AC is off, it could indicate a problem with either the cooling system or the air conditioning system. In most cases, if your engine’s temperature rises while driving, it means that coolant isn’t flowing properly through the cooling system and heat is building up in the engine compartment.3. Remove the existing key and, within fifteen seconds, insert the new key. and turn it to ON (RUN). 4. The security light will light up for two seconds to indicate success in programming. the key into the vehicle. Originate New Master Key (PK3 or PK3+ key) 1. Insert new key into ignition cylinder and turn it to the ON (RUN) position.Thermostat: how it works, symptoms, problems, testing. The thermostat is the key component of the engine cooling system. The cooling system keeps the engine from overheating. The system is filled with liquid coolant (antifreeze) and is connected into a loop with a radiator, see the diagram. Cooling system diagram.Jun 21, 2023 · Why does my car say engine hot AC off? : Mean. The dreaded “engine hot AC turned off” message can be alarming for any driver. This warning means that the car’s engine temperature has reached a dangerous level, and as a result, the air conditioning system is automatically turned off to prevent further damage. What Does It Mean When the Engine Is Hot While the AC Is Off? | The Motor Guy. 4 days ago. 04/28/2024. If your engine gets hot without the AC on, it may signal …What does it mean when your car says the engine hot AC off? When your car displays the message engine hot AC off it's a critical warning indicating that your engine is overheating. The warning protects your engine from damage when operating in excessively high temperatures.Mine does and if i do not let it get warm, and then go cruising at 45-70 it will appear. I suggest starting it, turning off the a/c and letting it sit for a good 5-10 minutes, and then put it in 3rd gear to keep the rpms up to get her warm. And i guarantee it will never do it again if it is warmed up first.The SRM University Entrance Exam is one of the most competitive exams in India. It is a gateway to some of the best engineering and medical colleges in the country. Every year, tho...Thermostat: how it works, symptoms, problems, testing. The thermostat is the key component of the engine cooling system. The cooling system keeps the engine from overheating. The system is filled with liquid coolant (antifreeze) and is connected into a loop with a radiator, see the diagram. Cooling system diagram.Turn off the power to your AC unit from the circuit breaker. Remove the dust cover of your wall unit and place it aside. Open the front panel of your AC wall unit and remove the air filters. Unscrew the outer casing of the AC wall unit and remove it to reveal the inner compartment and electrical unit.2013 Silverado pick up engine hot turn a/c off came on whats the cause? 54000. 2013 chevy silverrado. Have had no issues - Answered by a verified Chevy Mechanic ... Engine running hot A/C turned off message on dashboard. What does this mean? ... engine hot AC turned off. The thermostat indicator does not move...stuck on cold, I have replaced ...Core Dimensions : 30.44 x 14.06 x 0.63 in. Core Size Automatic Transmission Cooler : With Transmission Cooler Engine Oil Cooler : Without Engine Oil Cooler Inlet Size : 1.31 in. Inlet Outlet Location : Bottom right outlet Recommended Use : OE Replacement Numberof Rows : 1-Row Core Tank Material : Plastic Tank Core Material : Aluminum Core Color Finish : Factory Finish Outlet Size : 1.31 in ...The dashboard of a car displays "AC off due to high engine temperature" when it detects no AC. As indicated on the dashboard, the reason for this is an overheated engine. You see, both the AC and the cooling system work together to cool the vehicle. When the engine overheats, the car's cooling system is massively strained.Have a 2012 Chevy equinox V6 replaced temperature sending unit replaced thermostat housing and thermostat still have upper hose hot lower hose cold does this need purging what does it need … read more04/28/2024. If your engine gets hot without the AC on, it may signal issues like a faulty ECT sensor, a malfunctioning radiator fan, low coolant, poor radiator airflow, or a defective coolant sensor. Watch for fast temperature gauge rises, abnormal coolant levels, fan issues, reduced cooling, and possible engine damage.A code P0128 may mean that one or more of the following has happened: Low engine coolant level. Leaking or stuck open thermostat. Faulty cooling fan (running too much) Faulty coolant temperature (ECT) sensor. Faulty intake air temperature (IAT) sensor. Possible Solutions. Past experience indicates that the most likely solution is to replace …I suspect that one of these 3 sensors or their wiring is damaged and that makes the vehicle believe that the engine is overheating. You would need to use a scan tool that can read the live data of the engine sensors and see what all 3 sensors are reading. If one of the 3 is different then you can replace that one.Your Chevy Impala displays the message "Engine Hot, AC Off" when the engine temperature exceeds a safe threshold. It is a warning to prevent further damage t...May 17, 2017 · A code P0128 may mean that one or more of the following has happened: Low engine coolant level. Leaking or stuck open thermostat. Faulty cooling fan (running too much) Faulty coolant temperature (ECT) sensor. Faulty intake air temperature (IAT) sensor. Possible Solutions. Past experience indicates that the most likely solution is to replace the ... Here are some quick fixes for AC failure due to high engine temperature. Make certain that there are no coolant leaks. Change the coolant temperature sensor. System coolant flushing. Install a gauge for air pressure. Replace the radiator cap. Replacement of the coolant temperature sensor.It's usually a bad thermostat. Then when the pcm determines that it can't control the engine temperature the way it wants it to then it will disable the ac, turn the fans on, and display the message. Often it will set a code P0128. The fix for this is a replacement thermostat. Ask Your Own Chevy Question.Sep 14, 2022 · When your car’s AC is off and shows a message mentioning that the “ engine hot AC off ”, it does mean that your AC’s cooling fan is malfunctioning, and the system is overheating because of that. The other reasons for this problem are, Bad temperature sensor. Bad radiator cooling fan. Bad AC compressor. Bad head gasket. Blown head gasket. A head gasket, which seals the engine block and the cylinder mix, causes coolant leaks. A dip in coolant levels in the engine will cause the engine to overheat, which in turn shuts off the AC. Furthermore, there's also the risk of leaked coolant mixing up with engine oil and combustion gases, which can damage the engine.Ok got in my 2010 Traverse yesterday. 47210 miles. Started and cranked up a/c back out of driveway a/c was cold as usual. Get out of driveway and about half mile down the road. Air got hot and looked at the dash and the DIC said engine hot a/c off. Temperature did not even move of 160. Turned around and when I shut motor of the fans stayed ...The A/C off is just a default, as mosthave a/c. GMWrencher : You have a thermostat or coolant temp sensor failing. GMWrencher : Disconnect the coolant temp sensor. Should be located left head at the front. 2 wire connector. Inspect it for corrosion or any connectivity issues.They may be loose or plugged in the wrong place. Also, check the electrical relays or their fuses. If your fans don't have a current problem and still won't work, they're probably dead. If the A/C condenser fan dies, it could be a problem with the thermostat switch or a faulty thermostat motor.When your car’s AC is off and shows a message mentioning that the “ engine hot AC off ”, it does mean that your AC’s cooling fan is malfunctioning, and the …Engaging the ignition switch is necessary to reset the Engine Hot AC Off warning effectively. Step 2: Wait for a Few Minutes. Allow the engine to cool down for a few minutes. This step will give the engine time to dissipate any excess heat and reduce its operating temperature.An engine misfire is an event that occurs when one or more of the engine’s cylinders fail to ignite the air/fuel mixture during the combustion cycle. This can lead to a variety of engine performance issues and can even lead to serious engine damage if left untreated. For complete cylinder combustion to occur, the engine needs three important ...If your Chevy Impala’s engine overheats, the “Hot AC Off” message will appear on the driver information center. This is to remind you to turn off the air conditioning to help cool the engine. The engine may overheat for several reasons, such as a coolant leak, a stuck thermostat, or a failed water pump.Here's what should you do if your Chevy Cruze AC turns off due to overheating: 1. Turn Off The Engine And Pull Over To A Safe Spot. Wait until your Chevy has cooled or the temperature gauge has changed from hot to cold before opening the hood. 2. Check The Coolant Level (Also Known As Antifreeze) In The Radiator.The panel is telling me that the AC is turn off because the engine is over heated. but when I check the water (Coolant) all appears to be in order. Their are no leaks of any kind any where, there is n … read moreA seized water pump: Another possible cause of an overheating engine is a seized water pump. The water pump circulates coolant around the engine, and if it seizes up, then coolant will not be able to flow properly and the engine will overheat. 5. A damaged radiator hose: The final possible cause of an overheating engine is a …Apr 21, 2019 ... ... Engine is hot and AC Turned Off? You may also have an illuminated check engine light and stored code P0128 as well as no operation of the ...There are two main causes for engine overheat: ⚠️ The coolant does not flow through the system like it should. These may be some of the causes: Not enough coolant: check the coolant level periodically. If the level is under the minimum level recommended, the engine may overheat because there is not enough coolant.Sep 28, 2020 ... ... AC is off due to high engine temp. If your temp gauge shows cold when your engine is certainty hot, it could be your temp sensor has taken a ...2006 Impala Engine Hot Issue. In reading some of the posts regarding false messages indicating an Engine Hot message (and subsequent Engine Hot/ Turn AC Off) displays, I experienced exactly the same thing with my 2006 3.9 LTZ. One night driving home from work, I got an Engine Hot message and thought "HOLY CRAP!".Follow these steps to solve the AC Off Due to High Engine Temp Chevy Cruze error: Detach the car battery for a few minutes and reattach it back. Inspect the hoses, radiators, and cooling fans & oil level. Check if the radiator cap is closed properly for the engine to have sufficient coolant to flow. Inspect if cooling fans are operating normally.Filip Gromovic August 31, 2022 |. Did you get a notification on your dashboard that says “ AC off due to high engine temperature “? If yes, then you’re probably wondering what it means and how serious it is. …1. Check Engine Light Turns On. An illuminated Check Engine Light is one possible symptom of a bad ECM. The Check Engine Light usually illuminates when the computer detects a problem with any of its sensors or circuits. There are cases, however, where the ECM illuminates a Check Engine Light mistakenly, or when there is no issue …Nov 28, 2023 · When it says “engine hot AC turned off,” it means that the engine computer system has detected a high temperature in the engine. This warning light signifies that the engine is experiencing excessive heat, and as a precautionary measure, the AC system is turned off to reduce the load on the engine and prevent further heat gain. Understanding the purpose of the AC off feature is essential. When the engine is running hot, the heat produced can put additional strain on the engine. By turning off the AC, the engine can divert more power towards cooling itself, ultimately preventing overheating. This feature ensures that the engine temperature remains within safe limits ...303 Answers. SOURCE: 2000 chevy express 1500 van having starting issues. Start with fuel system. Listen for fuel pump humm at fuel tank No humm check wiring to pump for power. Then check for spark at plugs and wires. Remove wire from coil and hold near engine and see arch when you crank. No arch.First is the engine is actually running hot. This would show up on your temp gauge as the engine would be running hotter then 240deg. If the gauge or display shows normal engine temp then you may have a bad thermostat. The second problem is the thermostat, its performance is checked by the engine computer.you will want to check the coolant level first it should never just evaporate, if it is low then there is a leak /or the engine has a internal problem (i.e. blown head gasket, etc) usual suspect is the radiator, radiator hose(s), heater hose(s), heater t-connector(s) at firewall, or reservoir tank or water pump seep hole.What Does It Mean When Your Car Says “Engine Hot AC Off”? Engine overheating is not a “strange” term for many drivers and we are sure that we all know …1. Leaking Refrigerant. The most common reason for a car AC suddenly blowing hot air is leaking refrigerant. The refrigerant is the fluid that circulates through the air conditioning system of your car. It expands and contracts to remove humidity and heat from the cabin.Nov 5, 2017 · In this video I describe how to fix the dreaded “Engine hot turn AC off” code that so many Impala owners have been lamenting over on the inter webs. Hope thi... The A/C turns off when your truck overheats to prevent damage. If the computer has no idea what your cooling system is doing, it defaults to this safe mode of turning the A/C off. If it's not running hot you either have significant air bubbles in the system, or a bad sensor.Temperature coolant sensor you meant. Check the coolant level and check the hoses from the radiator if are hot (just touch and let go). This would show if the thermostat is ok. Also you could step out of the car and leave the interior fan on the highest mark to see if temperature is coming down. A bigger problem could be a blown headgasket...Nov 4, 2009 · 2006 Impala Engine Hot Issue. In reading some of the posts regarding false messages indicating an Engine Hot message (and subsequent Engine Hot/ Turn AC Off) displays, I experienced exactly the same thing with my 2006 3.9 LTZ. One night driving home from work, I got an Engine Hot message and thought "HOLY CRAP!". A code P0128 may mean that one or more of the following has happened: Low engine coolant level. Leaking or stuck open thermostat. Faulty cooling fan (running too much) Faulty coolant temperature (ECT) sensor. Faulty intake air temperature (IAT) sensor. Possible Solutions. Past experience indicates that the most likely solution is to replace the ...I've had the thermostat replaced twice, the temp sending unit (on the rear of the drivers side of the engine by the manifold) replaced and had the computer in the car flashed and updated. The coolant level is full. The code is P0128 Engine Coolant temp below thermostat regulating temperature. Once I clear the code I can drive for miles and ...The Tecumseh company has been in business for more than 100 years, according to Tecumseh Engine Parts. That means there are lots of old Tecumseh engines out there, plus outdoor pow...SOURCE: on a 2006 chevy impala it tells you to tighten the gas cap. There is no sensor for a loose gas cap. What is happening is that the evaporative emission system is sensing a "Large Leak". Usually code p0455. The computer sees this as the most probable cause is a loose gas cap depending on several factors it looks at.Ok got in my 2010 Traverse yesterday. 47210 miles. Started and cranked up a/c back out of driveway a/c was cold as usual. Get out of driveway and about half mile down the road. Air got hot and looked at the dash and the DIC said engine hot a/c off. Temperature did not even move of 160. Turned around and when I shut motor of the fans stayed ...In most cases, the Engine Power Reduced warning indicates that your car’s performance has been intentionally limited. It would trigger the check engine light when the powertrain control module (PCM) or your car’s primary computer detects a system failure or reduced engine performance. If you’ve got the owner’s manual to your GM vehicle ...A Leak in the A/C System. A small refrigerant leak is the most common reason a car's A/C gradually loses its cool. A leak is typically caused by a mixture of moisture and refrigerant that, when combined, creates a corrosive acid that eats away at seals, valves, and hoses in the A/C system. A leak in your A/C system could be causing the unit to ... When your car displays the message engine hot AC off it’s a critical warning indicating that your engine is overh
1. Check Engine Light Turns On. An illuminated Check Engine Light is one possible symptom of a bad ECM. The Check Engine Light usually illuminates when the computer detects a problem with any of its sensors or circuits. There are cases, however, where the ECM illuminates a Check Engine Light mistakenly, or when there is no issue present.Blown head gasket. A head gasket, which seals the engine block and the cylinder mix, causes coolant leaks. A dip in coolant levels in the engine will cause the engine to overheat, which in turn shuts off the AC. Furthermore, there’s also the risk of leaked coolant mixing up with engine oil and combustion gases, which can damage the engine.2006 impala indicater says engine hot A/C off whats wrong and how to fix. Mine did the same thing. The thermostat was stuck open. Replace thermostat, the problem went away. If stuck open, it doesn't get to operating temperature when cold and indicates the engine is too hot when it's warm outside. 0 helpful.303 Answers. SOURCE: 2000 chevy express 1500 van having starting issues. Start with fuel system. Listen for fuel pump humm at fuel tank No humm check wiring to pump for power. Then check for spark at plugs and wires. Remove wire from coil and hold near engine and see arch when you crank. No arch.When the Engine Hot AC Off light shows up abruptly on your dash, it means that the electric cooling fan of the engine is not functioning. This will result in the engine’s overheating because it was running hot …I'm reviewing your question now, and will post back with a reply shortly. I would check for codes set, and replace the electronic thermostat assembly. Refill and bleed cooling system correctly. The plastic hose, the header tank, and the thermostat are common issues. Hopefully you don't have a head gasket weep now.Dear Valued Customers, The Covid-19 situation has affected the logistics greatly, which results in delayed bookings & shipments. Nonetheless, CFJ is trying our best to secure spaces on the vessels as soon as possible & will keep you posted. Also, please keep in mind that due to the safety regulations of the shipping companies, the shipment … Your Chevy Impala displays the message "Engine Hot, AC Off" when the engine temperature exceeds a safe threshold. It is a warning to prevent further damage t... When your car’s AC is off and shows a message mentioning that the “ engine hot AC off ”, it does mean that your AC’s cooling fan is malfunctioning, and the …Blown head gasket. A head gasket, which seals the engine block and the cylinder mix, causes coolant leaks. A dip in coolant levels in the engine will cause the engine to overheat, which in turn shuts off the AC. Furthermore, there’s also the risk of leaked coolant mixing up with engine oil and combustion gases, which can damage the engine.Summary. The engine coolant over-temperature light warns about an overheating engine. Common reasons for an engine coolant over-temperature alert include coolant leaks, faulty cooling parts like fans or water pumps, and internal issues with the engine. It’s unsafe to keep driving with an illuminated temperature light.Nov 7, 2020 ... Check out our DIY Raptor Club store https://teespring.com/stores/diy-raptor-club.The code that gets thrown out most often after the issue happens is BA222. It turns out the code is a GM specific code for "system anomaly". Basically, there are two temp sensors, one for the gauge and one for the ECM. After the truck is running for a short time while the outdoor air temp is very mild (in the upper 50s or lower 60s) the ECM ...If it is either the thermostat is stuck closed and cooking the engine, or there is a blockage in the radiator or no flow from the water pump. With it that hot the engine cooling fan should be moving a lot of air. Part of the overheating strategy is to turn the ac off when the engine is overheating.Hi , my question is about a 2012 Chevy Silverado with 4.3 L V6 with 40k miles. Every few weeks a message pops up on dash. It says"engine hot ac turned off". When this happens, the electric radiator fans come on full power,the temp gage turns off, the ac will not turn on. The check engine light does not come on. The truck will stay in this condition indefinitely. Turning engine off and on does ...For the past month I've had my 2015 Chevy Cruze LT 1.4 L Turbo overheating. "AC off due to high engine temp" and "Engine temp too high. Idle engine" messages appear. I have replaced the thermostat, water pump, serpentine belt, bled the coolant lines numerous times, and disconnected the battery. The fan runs fine.Request Appointment. Warning light reading ENGINE HOT A/C OFF. 1 person has answered this. 08 denali xl engine stalls after drive approx. hour cranks but wont fire. 1 person has answered this. Just replaced both head gaskets about a week ago car has been running fine got in my car last night went about a mile down the road in the warning ...This is how you fix a condition where your Chevy vehicle says that your AC is off due to high engine temp. If your temp gauge shows cold when your engine is ...Sep 28, 2020 ... ... AC is off due to high engine temp. If your temp gauge shows cold when your engine is certainty hot, it could be your temp sensor has taken a ...using a scan tool, you will be able to monitor the ECT sensor value when the message comes on and the fans are on, the ECM may be loosing the ECT signal. I replaced the ECT sensor. ECM / Engine Control Module. BCM / Body Control Module. The ECT sensor is an input for the ECM. And the ECM is the one controlling the coolant fan.Measure your pressure readings when your engine is off, and your ac hasn't been on for at least 50 mins. If not, it will cause your car ac pressure to not equalizing. Static pressure readings only indicate when your system is empty or has refrigerant. It can't be used to tell if you have the correct charge.I have a 2007 Silverado with a 4.8 liter work truck package. It stated in the dash that "engine hot, turned off ac". it blows hot air, however the temp guage does not seem to work. Also it takes a whi … read moreSometimes the engine will get very warm but it's okay. When the a/c is turned on it will push the engine too hot, thus engaging the fans. A/C is notorious for pushing engines too hot. Where yours is overheating enough to kick in the fans only when the a/c is started. Also, check that your thermostat is in working order.The "Engine Hot AC Off" Light: What Does It Mean? The "Engine Hot AC Off" light is a warning that appears on the dashboard of a vehicle when there is a problem with the air conditioning (AC) system.. This warning can indicate that the AC system is not functioning properly, or that there is an issue with the engine or other components of the vehicle that is causing the AC system to ...The cooling fan relay is an electromagnetic switch that controls the power supply to the engine's cooling fans. Without it, the cooling fan won't work. Without the radiator fan, your engine can run hot and be at risk of overheating. A faulty relay can be caused by a bad relay control module, ants in the relay, or an electrical short.Dear Valued Customers, The Covid-19 situation has affected the logistics greatly, which results in delayed bookings & shipments. Nonetheless, CFJ is trying our best to secure spaces on the vessels as soon as possible & will keep you posted. Also, please keep in mind that due to the safety regulations of the shipping companies, the shipment …1) Faulty Engine Control Unit. Although rare, the Engine Control Module (ECM) may act up and cause false temperature gauge readings. If the ECM can't detect a change in the voltage signal from the sensors due to damage, it can't effectively control the dashboard temperature gauge or the radiator fan.Engine Hot A/C off. Thread starter gaspar; Start date Jan 19, 2009; gaspar Jr. Member. Joined Nov 26, 2006 Messages 28 Points 1 Age 68 Location CARIBBEAN. Jan 19, 2009 #1 Hi to all,Year Model 2008 Gmc Acadia A/c not working. Instrumental panel warning says Engine hot A/c off. K. kev2 wrench. Joined Nov 14, 2006 Messages 4,9192009 chevrolet says engine hot/ac turned off but it has been running fine. Posted by josiah_cabre on Nov 30, 2010. You need to Clean the throttle body bore and the throttle valve plate using a clean shop towel and some carb cleaner. The DTC P0128 is Engine Coolant below the minimum thermostat regulating temperature.The most common cause of the “engine hot, AC off” warning message is a faulty engine coolant temperature (ECT) sensor or damaged ECT wiring. Other …If this happens to your Accord, you might have a problem that needs fixing. The common culprits are the temperature sensors (your car has two), which are the fan switch and the fan timer module. This article will discuss the three reasons why your fan might continue to run, even after the car is shut off. Figure 1.Anything over 350F is very high repair bill or maybe worse (you damaged it bad) Anything over 400F is likely a blown motor (damage is probably beyond repair) Anything over 450F is a fire, run. Just try not to overheat the car. If the gauge is high near the red, pull off, turn off, or drive nicer.just a few things to check…. make sure your coolant is up to the proper level. if not add and have the system bled to get the air out. make sure your radiator fans are coming on. if not check your fuses and relays first. you could also have a faulty thermostat. a bad temp sensor can stop the fan from turning on. Your cars computer is saying ...3. Water Pump is Broken. The water pump is the thing that circulates the coolant. It makes sure it cycles through in order to keep your engine cool. With a faulty or broken water pump, the coolant will just sit in one spot. It will heat up and won’t do a great job of getting the heat away from the engine.The original Thanksgiving was very different to the way it is celebrated now. Find out more about Thanksgiving with this HowStuffWorks quiz. Advertisement Advertisement Advertiseme...Question type: Maintenance & Repair. Our car keeps saying engine hot then below that. says a/c off. Also the tempreture gage is all the. way at zero.the heat works he have not had the ac. on in a while,it did this and took it in and the. mechanic replaced the thermostat it has been. normal after that, and now a week later its doing.Ok, yes,, the AC is stuend off whenever the computer detects a problem with the cooling system Without a scan tool hooked up watching as to what the coolant temp sensor is reading, it could in fact be a sticking thermosat or even the coolant temps sensor Agasin, the AC automaticflly goes off as programmed. This is normal so,, one needs to …Maybe the scan tool you are using is just not clearing it properly. Those are the only 2 problems i have seen cause that code. Ask Your Own Chevy Question. Thanks again. Chevy Mechanic: DANyR122. Let me know if it returns to normal (it should) and make sure the cooling system is full properly.ssgjurista. 8435 posts · Joined 2006. #2 · Oct 10, 2009. If the engine coolant temp sensor is bad it could give a false signal to the PCM, making it think the engine is hot and causing the message. Since you aren't overheating I don't see any reason not to drive the truck until you get home and can visit the dealer.Check and see if the engine is actually over heating as it will cause this message/fault here and what it is telling you is the engine is hot so the ac is disabled to prevent further over heat issues.In some cases your model may have a coolant temp gauge you can view to see if it is actually over heating (around 240 to 260 degrees or above 3/4 ...First, locate the “Hold” or “Temporary Hold” button on your thermostat. This will usually be marked with an H or TH. Press this button again until it reads “Off.”. Once that is done, your thermostat should automatically return to its previous settings. If not, simply set the temperature back to where you would like it to be and ...Engaging the ignition switch is necessary to reset the Engine Hot AC Off warning effectively. Step 2: Wait for a Few Minutes. Allow the engine to cool down for a few minutes. This step will give the engine time to dissipate any excess heat and reduce its operating temperature.What Does It Mean To Jump A Car. To jump a car means to start a vehicle with a dead battery by using another vehicle's battery to provide a temporary power boost. It is a method of transferring electrical energy from a functional battery to the dead battery, allowing the engine to start and the vehicle to operate. When a car's battery is ...2. Car Interior Feeling Physically Hot. If your car is abnormally hot and you can smell rubber or plastic burning, it could mean that it has overheated. The smell could be a sign of plastics and gasket melting. 3. Ticking Sounds From the Engine Compartment. If engine oil is utilized beyond the recommended period, it will stop being viscous.2011 Chevy Silverado 4.3l v6. While driving in the highway, the dash displayed "Engine Hot, A/C Turned Off" while the temp reading dropped to the lowest reading. Pulled over to check under the hood. Coolant overflow tank was fine. Engine and upper radiator hose were not too hot. My first thought is to replace the thermostat. When the Engine Hot AC Off light shows up abruptly on your dash, it means that the electric cooling fan of the engine is not functioning. This will result in the engine’s overheating because it was running hot continuously. If not corrected immediately, it could lead to the engine seizing up. This situation is the leading cause of engine ... Usually it sets a P0128 code which means thermostat is taking too long to open so vehicle says shut AC off and that it is running hot jut to be safe since it doesn't know. My goal is to provide 5 star service so please let me know if you have questions, thanks. The coolant temp sensor is about a $40 part and a half hour to replace.What does tsb mean Reply reply ... I think the engine hot message is a bug in the system. Newer cars still display that when the thermostat is stuck open and the car does not reach the correct operating temperature. ... Reddit's International Electrical Worker Community aka The Great Reddit Council of Electricians Talk shop, show off pictures ...As far as the message "Engine Hot, AC Off", in my opinion GM screwed up on this warning. This message will come on if the engine overheats AND if the engine doesn't come up to temperature quick enough. The other part of the screw up is that the temperature gauge is disabled so you don't know if the engine is actually overheating.using a scan tool, you will be able to monitor the ECT sensor value when the message comes on and the fans are on, the ECM may be loosing the ECT signal. I replaced the ECT sensor. ECM / Engine Control Module. BCM / Body Control Module. The ECT sensor is an input for the ECM. And the ECM is the one controlling the coolant fan.just a few things to check…. make sure your coolant is up to the proper level. if not add and have the system bled to get the air out. make sure your radiator fans are coming on. if not check your fuses and relays first. you could also have a faulty thermostat. a bad temp sensor can stop the fan from turning on. Your cars computer is saying ...So here is what is going on: my temp gauge barely goes to the 1/4 mark.. then goes back down lower towards cold. It then says ac off due to high engine temp but my gauge is on cold at this point. Check engine light is reading that the engine isnt getting to temperature but the alert on the dash is still saying its hot … read moreWhat does an Engine Hot AC Off warning mean? What sets it off? The Engine Hot AC Off warning light shows that the electric cooling fan in the automobile isn’t working properly. This is causing the engine to run hot or overheat. Notably, the leading cause of engine mortality globally is overheating. Therefore, if your engine overheats, …Measure your pressure readings when your engine is off, and your ac hasn't been on for at least 50 mins. If not, it will cause your car ac pressure to not equalizing. Static pressure readings only indicate when your system is empty or has refrigerant. It can't be used to tell if you have the correct charge. What "Does Engine Hot, AC Off" Mean? Your Chevy Impala displays the "Engine Hot, AC off&q