Engine hot ac off 2008 impala

Engine hot/ AC OFF 2008 Chevy Impala P0116 Hi,i hope you can help. I own a 2008 Chevy impala. I just had a car starter installed, and I started getting the engine hot/ AC OFF message.when put on scanner, code P0116 come on. We have changed the thermostat coolant sensor the thermostat, and the connector, I am still getting the same message....

Engine hot ac off 2008 impala. This morning on the way to work, I got the dreaded "Engine Hot Turn AC off" message from the OBD in the dash. The AC will not engage when turned on. ... (I now own a 2014 Impala 2LTZ and previously owned 2008, 2011 and 2012 Impala LTZ models - all with the 3.9 V-6 engine). Save Share. Like. Show more replies. 0 ...

Sep 22, 2023 · If your Chevy Impala says “Engine Hot AC Off,” it means that the engine has reached an unusually high temperature and the air conditioning system has been automatically turned off to prevent the engine from overheating.

9,784 Satisfied Customers. Have owned a repair shop for 25 yrs. Tim's Auto Repair is online now. Share this conversation. See more. 07 impala noting engine hot ac off. Previous burn damage to. 07 impala noting engine hot ac off. Previous burn damage to pig tail connecting into the blower resistor, changed the resistor the … read more.x2. whenever u turn on the a.c the secondary fan should turn on. go check that one out. If it's doing it at highway speeds over 45 mph, the fans aren't on so they should not be a factor in the problem. Contrary to the post above, the primary (passenger side) fan comes on with the A/C.1. Low coolant level. One of the primary reasons for engine overheating in Impala is a low level of coolant or antifreeze in the cooling system. Coolant plays a critical role in regulating the engine's temperature by dissipating heat. When the coolant level is low, there is not enough fluid to absorb and transfer heat away from the engine.I have a 2008 chevrolet impala. Just replaced water pump bc it was leaking. When I turn the heat on high I get a message engine hot turn ac off. My temperature guage drops alway to cold. If I turn the heat off my temperature guage goes back normal and the engine hot ac off message goes away.May 3, 2020 · Lbucko Discussion starter. 1 post · Joined 2020. #1 · May 3, 2020. I have a 2006 Impala. On my dash screen it says engine hot A.C. off. I looked into it and the internet said it could be a thermostat, sensor, and other possibilities. My coolant is normal. I knew the oil life was getting low and it needs change.Continuing to drive your Chevy Impala with the "Engine Hot AC Off" warning can lead to impaired performance and reduced fuel efficiency. The engine relies on the cooling system to keep its temperature at an optimal level for efficient operation. When the engine is overheating, it can lead to decreased power output and sluggish performance. ...Engine hot AC off display on. No no trouble with engine AC does not seem to get cold Teeter fine. 2011 Impala - Answered by a verified Chevy Mechanic. ... 2008 chevy impala LTZ intermittent problem AC does not work when coolant gauge is all the way on cold and display reads "Engine Hot AC off".

Follow this detailed visual guide to replace the coolant temperature sensor in your Chevrolet Impala. This fixed the Engine Hot AC Off problem and the dead t...About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...Engine hot AC off light on, temperature gauge drops to zero, AC does not blow cold. ... 2011 CHEVROLET IMPALA; 3.5L; 6 CYL; 2WD; AUTOMATIC; 100,000 MILES; Engine hot A/C off light on, temperature gauge drops to zero, AC does not blow cold. I have replaced the thermostat two times drive approximately two hundred miles light comes back on and ...2006 impala check engine light on, ENGINE HOT AC OFF MESSAGE This message showed up several weeks ago for a few days and then went away. It is now back for 3 days. Temp gauge is stuck on cold and fans … read more2008 chevy impala LTZ intermittent problem AC does not work when coolant gauge is all the way on cold and display reads "Engine Hot AC off". Has to be an Electrical problem Thermostat is good. … read more

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.2464 posts · Joined 2011. #1 · Sep 23, 2021. Was driving to work today and got Engine Hot AC Off message and gauge was all the way on the low side. Lucky I wasn't far from home so I took her home and drove the DD to work. Checked under the hood and nothing was overheating or hot and fluid was normal level. I was logging with HP Tuners and ...9,784 Satisfied Customers. Have owned a repair shop for 25 yrs. Tim's Auto Repair is online now. Share this conversation. See more. 07 impala noting engine hot ac off. Previous burn damage to. 07 impala noting engine hot ac off. Previous burn damage to pig tail connecting into the blower resistor, changed the resistor the … read more.A ductless AC unit costs between $1,300 and $4,435, which makes this type of AC unit budget-friendly. Read on to learn more about ductless AC unit costs. Expert Advice On Improving...

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no. JACUSTOMER-x4j59t8l- : actualy when i turn on the car sometimes it says ice is possible. GM Tech (Cam) : OK, perfect. GM Tech (Cam) : This means the outside air temp is not updating and that is keeping the AC disables. GM Tech (Cam) : disabled.If voltage goes to the blower motor, it'll need replacing. If there's no voltage, test the resistor (YouTube). 2. AC System Not Blowing Cold Enough. The most common reason for your Chevy Impala's AC not blowing cold enough is low refrigerant levels, followed by a dirty evaporator or condenser issues (bad or clogged).Oct 14, 2023 · This just happened to me and my 2009 Impala LT 3.5L V6. I replaced the radiator cap just because I wasn't sure how old it was. I received the same message, and the temp gage was pegged on COLD. I replaced the coolant temp sensor and that fixed the issue with the temp gage and cleared the message from the DIC.Location and How to replace the engine coolant temperature sensor. (On the video I said now I pop the trunk I meant to say pop the hood). After I replace it ...SOURCE: 2004 Chevrolet Impala tire pressure light guage. 1. turn the ifnition to ACC or ON and turn the radio off. 2. press and hold the DISP button on the radio for at least five seconds until SETTINGS is displayed. 3. press the SEEK up or down arrow to scroll through the main menu.That being said, with HPTuners, I can alter the ECM programming so that the main cooling fans stay on after shutting off the car if the coolant is above a certain temperature. Actually, it comes from the factory like that, but you can alter the temperature threshold that determines when they stay on (as well as how long they run and at what ...

SKU # 533125. Check if this fits your 2008 Chevrolet Impala. Select store. for pickup availability. Standard Delivery by June 03 - 04. Add TO CART. Notes: Gap 0.040". Iridium Long Life. DENSO is OEM manufacturer / iridium long life plug - patented iridium alloy plug (90% IR) with platinum ground strap.The 2009 Chevrolet Impala has 1 problems reported for engine hot, turn ac off warning. Average failure mileage is 350,000 miles. CarComplaints.com : Car complaints, car problems and defect informationAbout Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...The throttle position sensor tells the ecu where the throttle blades are so load can then be calculated from the IAT, MAP, ECT, RPM, and the MAF sensor. It does not directly control the IAC. If the IAC is in the incorrect position, it could be commanded there improperly or it could be having an internal issue.2008 chevy silverado 1500 5.3l v8 4x4 1 owner clean southern carfaxAldon auto cars for sale 5+ engine hot ac off 2008 impala ideasChevy silverado gmc sierra engine hot ac turned off repair. Sell used 2008 chevy silverado 1500 ext-cab 4wd lt sb...4.8l v8 inChevrolet silverado 1500 crew cab specs & photos Chevyman2008 2008 chevrolet silverado ...Steam or Smoke. Billowing steam plumes lurking around the hood underneath is a palpable indicator of a burning engine. It results from the engine coolant reaching its peak boiling point and transforming into steam. The very moment you notice this symptom, pull the car over and switch the engine off. Loud Thumping Noises.Engine Running hot. Temp gauge intermittent. 2009Chevy Impala Police 3.9 V6 will get boiling hot fast. Temp gauge is working intermittently. At idle it get hotter. Feel the upper and lower hoses and see if one is way hotter than the other. If so, thermostat could be going. Also, make sure the car has enough coolant in it to function.This leads to a clicking noise that can be heard when the car is off. Another symptom of a bad actuator is cooling problems in the car. If the AC can't match the temperature on the climate control setting, then the blend door isn't turning to the correct position. This means the actuator needs to be replaced.Ace Hotel is marking down its rooms brand-wide between May 16-31, for stays June 1-September 10, 2023. Opened in May 2022, the Ace Hotel Sydney is one of the newest properties in t...Engine hot A/C Turned off. my truck got this message a while back, ac wouldn't blow cold but still blew, and temp gauge read cold all the way down. Did some googling/youtube and read some basically replaced the thermostat and the coolant temp sensor with a flush and well the problem was fixed til few months back it happened again, exact same ...Impala engine hot off message 2006Engine hot turn ac off: chevy impala Engine impala off hot chevyAc off turn. Off hot engine impala chevy2006 chevy impala ltz (engine hot ac/off) 2006-2011 impala engine hot a/c off message.2013 impala engine hot ac off fixed. 2013 Impala Engine Hot AC Off Fixed - YouTube. Check Details. Chevrolet impala questionsThe low coolant level is the prominent cause of heat accumulation in the engine. In addition, if a leak occurs or is blocked by rust, the cooling system will not be able to stop the hot motor's engine. You can inspect the recommended levels and, if needed refill it. Ensure the coolants are in the ratio of 50 percent coolant (per need of the ...

Impala. 85,000 miles. The contact owns a 2008 Chevrolet Impala. While attempting to accelerate, the vehicle hesitated and jerked forward. The contact took the vehicle to gregg young Chevrolet ...

That being said, with HPTuners, I can alter the ECM programming so that the main cooling fans stay on after shutting off the car if the coolant is above a certain temperature. Actually, it comes from the factory like that, but you can alter the temperature threshold that determines when they stay on (as well as how long they run and at what ...If you cut the AC on in the car, both cooling fans will kick on and run for 10 or 15 seconds and then cut off for 10 seconds or so. But if you let the car run with either the heat on or nothing on, the fans do not kick on, and it takes 20 or 30 minutes before it starts to run hot. If you are driving the car though, it does not overheat at all ...AC repair costs between $150 and $650, but this cost depends on the AC part, labor costs, and more. Learn what you’ll pay for your AC repairs in this article. Expert Advice On Impr...Compare American Standard and Rheem AC units to decide which is best for your home. Read our review and make an informed choice. Expert Advice On Improving Your Home Videos Latest ...(1) To add refrigerant, you must locate your low pressure port. The AC low pressure service port is directly behind the engine, about 5-6 inches back, in the center. Look for the two silver pipes coming out of the firewall. The larger silver pipe has the AC low pressure service port sticking out the top with a black dust cap.2008 chevy impala LTZ intermittent problem AC does not work when coolant gauge is all the way on cold and display reads "Engine Hot AC off". Has to be an Electrical problem Thermostat is good. Has to be an Electrical problem Thermostat is good.2170 posts · Joined 2009. #9 · Feb 5, 2018. Set the heat selectors all the way hot or all the way cold. Hook up the battery. Turn the key on. WAIT for the motors to auto calibrate. Reset the thermal sensor by holding down the AC and Recirc buttons. Test the motors. 2009 Impala SS.FYI - "feeling" is not an acceptable means to determine engine temperature. The difference between normal and totally fucked is about 40 degrees F, and the inside and outside of the engine can be at vastly different temperatures. By the time you can tell it's warmer than usual, it's almost certainly done. -2. bryberg.A few weeks ago the "engine hot / AC off" display came on, and the temperature gauge went to zero. I used my scanner and it came up with P0128 Coolant Temp below thermostat regulating temp. Which is the opposite of the engine being too hot. I erased the code with the scanner and the temp gauge and the A/C came back.The 2009 Chevrolet Impala has 1 problems reported for engine hot, turn ac off warning. Average failure mileage is 350,000 miles.

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Insert an existing key into the ignition cylinder.2. Turn the ignition cylinder to ON (RUN) and back to OFF.3. Remove the existing key and, within fifteen seconds, insert the new keyand 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.Car computer read engine hot/ac off - I have a 2011 Chevy impala. ... 2008 Chevrolet Impala SS FWD- ... My 2009 chevy impala has the code engine hot ac off and went to change out the temperature coolant system ... still nothing ... when the car comes on the fans are at a high speed the temperature o... 2009 Chevrolet Impala LS FWD-May 13, 2018 · Easy way to change temp sensor without draining antifreeze. 3.5 & 3.9 engine.I had the temp gauge bottom out, & the fans howling, & the Engine Hot - A/C Turned Off message, I reset the fuse panel by lifting it to reset it, and the problem would come back the next day or so. ... I drove a 2008 2wd with the 4.3l as a company delivery vehicle in West Virginia for over 3 years and had the same thing happen, first got in it ...2008 impala. Tags 2008 impala ac not working cruise control not working. ... Ac light flashes,no cold air, ive already checked fuses,dash reads "engine hot AC off, temp guage stopped working. I replaced the coolant temp sensor and thermostat.The guage worked for a couple days then stopped again...bad sensor maybe??? ...Impala engine ac off hot. 2013 chevrolet impala to continue as fleet-only model2007 chevrolet impala ss car of tomorrow image. photo 9 of 14 Hot engine ac off impala cargurus helpful found peopleImpala chevrolet lt vehicle. Photos of chevrolet impala ss 2004-06 (2048x1536)Coolant sensor 3.6 2012 chevrolet impala engine hot ac off Impala ...Good Morning everyone, My girl has a 2007 Chevy Impala. After it sat for a couple days while we were out of town and just off, she went to go drive…thermostat Replacement on this 2008 chevy impala 3.5L**Product List****Product Links**Oil Pan - https://amzn.to/3uy1kSVRachet Set - https://amzn.to/3uyOXWDEl...Tips to prevent AC off due to high engine temp. We will share with you some short tips to prevent the warning sign "Engine hot AC off": Run your AC for about 10 minutes once a week. It will maintain air pressure to keep the compressor in good working order. When turning AC, make sure to switch it on the coolest setting and highest fan speed. ….

my 2008 chevy impala come up with a P1258 code and the engine sometimes overheats. it will display AC off and idle engine. I dont see a leak anywhere and and the fans do kick on any suggestions. ... I have 2008 Chevy Impala and it displays the Engine hot Ac/off dash display. Have replaced the sensor but the display has returned.x2. whenever u turn on the a.c the secondary fan should turn on. go check that one out. If it's doing it at highway speeds over 45 mph, the fans aren't on so they should not be a factor in the problem. Contrary to the post above, the primary (passenger side) fan comes on with the A/C.Bill58 said: Check the coolant level and be sure the water pump is spinning. If the thermostat has failed closed, the radiator won't have much hot coolant circulating. The rad won't be very hot. Driving with the heat at max and the heater fan on high will help cool the engine, not pleasant in August but better than walking. If the sensor has ...25 posts · Joined 2015. #1 · Oct 20, 2021. hi my 2013 impala lt with 63000 mi gave this message, engine not hot, no ac, and radiator fans were on temp gauge at lowest spot. as noted here , i rebooted the system .battery disconnest ,and all was back to normal for a 3 hour trip. anybody know whats going on? thanks for your considerstion. Like.SOURCE: I have a 2008 chevy impala. The car suddenly. ur vehicle is in limp mode[ a safe mode ] which will get u home trying not to cause any damage to engine --theirs a few reasons the vehicle will do this-low oil pressure-transmission problem-have vehicle scanned most auto stores such as auto zone / advanced auto [check ur local area]do this service for free the code gives u a start point ...Skip to main content. Open menu Open navigation Open navigation#08-06-04-026: Intermittent MIL/Check Engine Light On, DTC P0128 Set (Reprogram PCM) - (Apr 17, 2008) This is actually the bulletin that gm has came up with in regards XXXXX XXXXX problem. Feel free to contact me with any questions or problems! Good luck! ... I saw a thread about the engine hot ac/off trouble on 2006 Impala. I have a 2006 Monte ...Asked by Marci Jan 20, 2021 at 10:31 AM about the 2008 Chevrolet Impala. Question type: Maintenance & Repair. My defroster is blowing, but just fogging up the car. Had the thermostat replaced yesterday, because it was. intermittently giving codes of *engine hot, ac off*, not. working properly. Engine hot ac off 2008 impala, In this case the ECM program will disable A/C clutch engagement and turn the mentioned light "on". The ECM probably also turns this light 'on' when you go to WOT. A mechanic should check what the temperature is at the sensor location. It may be a problem with the cooling system or just a bad sensor., engine complaint electrical issue heater complaint transmission complaint paint defect Impala recall. Maximize. The 2007 Chevrolet Impala has 3 problems reported for overheating with warning ..., Top 2008 Chevrolet Impala Problems. Transmission Pressure Control Solenoid Failure May Cause Erratic Shifting. 1423 people have reported this. 503. Ignition Key Stuck Due to Failed Shifter. 520 people have reported this. 264. jolting while driving. 413 people have reported this., A forum community dedicated to Chevy Impala owners and enthusiasts. Come join the discussion about performance, SS models, modifications, classifieds, troubleshooting, maintenance, and more!, Dec 14, 2021 · If your Chevy Impala continues to display the ‘Engine Hot AC Off’ message after performing these checks and fixes, it’s time to surrender the baton to the professionals. Failing to treat an overheating engine can lead to severe engine damage., As soon as I get in my car to go it is at the half way mark as far as cold/hot. Then it races up to H and then my car starts dinging that I need to turn car off because engine is over heated. Then it goes right back down to half way even if I do not pull over. I had all fluids checked day before yesterday when I had oil changed., With the A/C on the secondary fan will run all the time or most of the time, i.e it is triggered IIRC by the high side A/C switch, keeping things cool. IIRC the only time both fans would be on is if the PCM triggers a MAX condition per say, where it is trying to cool the car down fast, also if the A/C is on and the primary fan is triggered on., Chevy Impala 2010 Engine Hot Turn Off A/C Warning. tiredCarShopper Member Posts: 13. January 2021 edited January 2021. I got this "Engine Hot Turn A/C OFF" 5 minutes into a drive, its happened before and the repair shop said the coolant level was fine. The Temp gauge was still on Cold and I got the same warning 1 week later after I left the car ..., April 27, 2022 at 7:42 pm. My 2008 Impala keeps reading engine hot/ac off. I’ve already replaced the thermostat, coolant sensor & sensor connector. Flushed the radiator & refilled with dexcool. It was working fine then started getting the engine hot message again. There are no leaks, & no noticeable issues with my water pump., 2008 chevy impala LTZ intermittent problem AC does not work when coolant gauge is all the way on cold and display reads "Engine Hot AC off". Has to be an Electrical problem Thermostat is good. … read more, Engine Hot AC Off 2008 Impala. If the engine on your 2008 Impala is overheating, there are a few things you can do to try and fix the problem. First, make sure that the coolant level is full and that there are no leaks in the system. If the coolant level is low, add more and check for leaks., Reasons Your Car Is Running Hot But Not Overheating. Many of the same reasons the car runs hot and overheats will still apply. These include a bad thermostat, a clogged or defective radiator, a faulty coolant temperature sensor, a bad water pump, low coolant, air in the cooling system, a malfunctioning temperature gauge or a worn-out engine ..., 2013 LTZ with ~153000 miles (3.6L engine) On startup I get the message "ENGINE HOT A/C OFF" immediately. Also, I got the P0128 code telling me the coolant is too cold. From what I read around the web, including from this site, it looks like it's either my engine coolant temperature sensor or the thermostat., If the ECT (engine coolant temp) sensor tells the ECM or BCM (engine or body control modules) that the coolant is cold, the needle will swing to C but the AC will still work. That's not what's happening. If it stops reporting the temp, then it goes into fail-safe mode and sends the needle to C and disables the AC., Impala thermostat Chevy impala engine hot a/c off indicator 2013 impala engine hot ac off fixed. engine hot ac off - Page 9 - Chevrolet Forum - Chevy Enthusiasts Forums. Chevy impala no ac diagnosis + fix Impala chevy engine ac hot off 2006 ltz Coolant sensor 3.6 2012 chevrolet impala engine hot ac off. Engine impala off hot chevy. Engine ac ..., When it comes to classic cars, few are as iconic and beloved as the 63 Impala. With its sleek design, powerful engine, and timeless appeal, this vehicle has captured the hearts of ..., 2008 chevy impala LTZ intermittent problem AC does not work when coolant gauge is all the way on cold and display reads "Engine Hot AC off". Has to be an Electrical problem Thermostat is good. … read more, The problem : The temperature gauge on my 2008 Impala LS (V6) stopped working. The message "Engine Hot A/C Off" was displayed. The temp gauge was completely dead - showing no temp. I replaced the the coolant temp sensor and verified electrical continuity on the harness wires and the attached connector contacts that mates to the sensor., Oct 6, 2009 · Cause. This condition may be caused by a logic lock-up in the HVAC control module. Correction. Technicians are to reprogram the HVAC control module with an updated software calibration. The new calibration was released beginning with TIS satellite data update version 6.5 which was made available on June 12, 2006., Impala. 85,000 miles. The contact owns a 2008 Chevrolet Impala. While attempting to accelerate, the vehicle hesitated and jerked forward. The contact took the vehicle to gregg young Chevrolet (17750 burt St, omaha, ne 68118, (402) 509-3028) twice, but they were unable to diagnose the failure., SOURCE: 2004 Chevrolet Impala tire pressure light guage. 1. turn the ifnition to ACC or ON and turn the radio off. 2. press and hold the DISP button on the radio for at least five seconds until SETTINGS is displayed. 3. press the SEEK up or down arrow to scroll through the main menu., So here is my experience. My 2013 Acadia with 74000 miles was fine, temp at 210 then all of a sudden temp gauge dropped to 160 and a message on the dashboard came on "Engine Hot AC Off", the engine ran a little rough, "check engine" light came on and the fan ran at full speed, which make the car seem like it stayed ruining when you turned the ..., April 27, 2022 at 7:42 pm. My 2008 Impala keeps reading engine hot/ac off. I’ve already replaced the thermostat, coolant sensor & sensor connector. Flushed the radiator & refilled with dexcool. It was working fine then started getting the engine hot message again. There are no leaks, & no noticeable issues with my water pump., 6 Common Causes Discussed. 1. Not Enough Coolant. 2. Radiator Fan Not Operating. 3. Temperature Gauge Not Working. 4. Blown Head Gasket and Engine Hot AC Alert. 5. Malfunctioning Thermostat. 6. Faulty AC Compressor (Cooling System) Is It Recommended To Continue the Journey With a Hot Engine Warning? Impala Models: Solving the Overheating Problems!, 1 post · Joined 2014. #9 · Apr 20, 2014. A/C Compressor. If the fuse is blowing and it is a 10A, the clutch is most likely going bad. Check the wiring on the compressor itself, and the wiring to the compressor. Replace is necessary. If not, the you have two options: replace the clutch or replace the entire compressor., There was a software calibration released to repair this as long and as the thermostat is not stuck open, the software update will correct it. Usually a .5 to 1.0 labor charge at a dealer or an independent shop that has a programming license and equipment can perform this update.Bill#08-06-04-026: Intermittent MIL/Check Engine Light On, DTC ..., Nov 21, 2023 · Low coolant levels or leaks can trigger the “Engine Hot AC Off” light, signaling potential engine overheating. Inadequate coolant compromises the engine’s ability to dissipate heat, risking damage. Regularly check and maintain proper coolant levels to ensure optimal engine cooling and prevent costly repairs. Ignoring warnings may lead to ..., Compare American Standard and Rheem AC units to decide which is best for your home. Read our review and make an informed choice. Expert Advice On Improving Your Home Videos Latest ..., I noticed on my ride home today, with the hot air on it was 204-208* for the coolant. Usually with the hot air on its 195-199*. I opened the hood and used a thermometer to check the outside temperature of the hose running into the radiator and the one running out. The one running in is very hot to touch., The ENGINE HOT, AC TURNED OFF came on. Engine seemed perfectly cool, probably "under-heated" if anything. Next morning I checked the coolant and it was slightly low. I added half a gallon on dex-cool premixed 50/50. Drove it 25 miles on the highway, same issue with the fan constantly on. ... in my case is a 2008 Chevy Silverado 2wd LT ..., About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ..., Basically the engine takes too long to reach operating temperature. When this occurs, the ecm will set a po128 fault code, disable the a/c and default the temperature gauge to zero. Clearing the fault code will re-enable the gauge and the a/c system and replacing the thermostat will prevent it from re-occurring., 2 Answers. when the engine coolant becomes hotter than the normal operating temperature this message displays. So Check: cooling system cap not maintaining proper pressure. Electric cooling fans/cooling fans sensor defective/malfunctioning. stuck closed thermostat. blocked/restricted expansion cooling system tank. defective water pump. Thanks.