2016 escalade fan keeps running

This will cause your engine to overheat, aside from our current issue of the cooling not turning off after you have turned the engine off. 2. Disconnect the Battery. By disconnecting the car battery, the cooling fan will quickly shut down. Do this by disconnecting the negative cable from its battery terminal.

2016 escalade fan keeps running. Engine temps are usually around 200 degrees at operating temperature. If there is an issue with the cooling system, the computer will default to prevent the engine from overheating, even if it’s not really overheating. In some cases it will even disable the A/C. You might have a problem with the cooling system, hard to say.

If they are turning on during a cold start I would check what the engine coolant temperature is reporting on the scan tool, along with the A/C pressure sensor to make sure it is not reporting high pressure kicking the fans on when the system is not even on, even the oil temperature sensor. Here is the information from the service manual with ...

auto385. If you think you can fix it yourself, you first need a proper scan tool. You will need to retrieve the engine codes. If it is a coolant system code, you will also need a temperature tool that can measure the temperature at several places on the engine. The engine will have at least 2 temp sensors.Daytime Running Lights Rear Accessory Power Socket ACG (IG) Not Used Power Window Relay Moonroof Radio Rear Wiper Gauge panel ABS 15A 20A 10A 10A 7.5A 20A 7.5A 10A 7.5A 7.5A 1: 2: 3: Canadian models only U. S. models only Type-S only 1 3 1 1 2 FuseLocations Taking Careof theUnexpected 223 INTERIOR FUSE BOXI have a 2016 Colorado 3.6 with 231,200 miles on it. A week ago my radiator fan started coming on as soon as I started the truck and would stay on while driving. Temperature never got over 160. When I shut the engine off the fan would stay on for about 5 minutes and then shut off.8 Answers. 2012 SRX if radiator fan stays running and doesn’t shut off 1st thing to do is top off you radiator reserve tank. This in most cases will resolve that fan problem. There is a coolant level sensor switch somewhere in the cooling system if it senses coolant to low it bypasses all fan relays (pull them fan will stay running it drove ... RepairPal will help you figure out whether it's your Fan Assembly, Fan Clutch, Coolant Temperature Sensor, or something else. 2016 Cadillac Escalade Radiator Fan Not Working Close Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. 1 (855) 347-2779 · [email protected]. Read FAQ. GET A QUOTE. Cadillac Escalade Cooling Fan Relay Replacement costs starting from $100. The parts and labor required for this service are ...AND I did drive a brand new 2016 ESV that had the vibration and buffeting issues. At 55mph with the drivers side passenger side window open it was, boom boom boom over and over. It sounded like the boom was happening with every revolution of the tires. I closed the window and accelerated to 70mph.

The temp gauge works intermittently. Cadillac Mechanic: Keiphun Sowell. If the gauge works, then don't work. The issue is a faulty sensor. If the thermostat was the issue the gauge would still work. The issue would be the gauge would be reading the coolant level is cool or high. Ask Your Own Cadillac Question.- Fans run on HIGH when car is running. - Fans run on LOW when car is shut down. - If I disconnect battery and reconnect, the fans shut off until I restart the vehicle. Then they turn on and back to aggrevating me. - If I pull relay to "COOL FAN 1" both fans stop. If I plug it back in, they start back up.my 2016 camaro with a 3.6 v6 is showing low coolant temp, the fan is running and the gauge is bottomed out. heater blow hot like normal. once I kill the car, the fan continues to run for quit a while. … read moreUse compressed air or a soft brush to gently clean the fan and vents. Maintenance Tips. Regularly check and clean air vents, and keep the laptop in a clean, dust-free environment as much as possible. This preventative maintenance can go a long way in ensuring the fan operates only when necessary. Adjusting Power Settings Optimizing for EfficiencyConditions: Air temperature 30 degrees F. Front defrost button on. Auto shut off mode was active (fuel saving mode). As some point along her 20 mile trip the radiator cooling fan came on. I thought this was odd due to the air temperature. At stops the engine shut off as expected. Cooling fan continued to run.This code may not prevent your 2016 Cadillac Escalade from running, but overheating is an obvious risk. The most common mistake in diagnosing this code is replacing the cooling fan motor before running multiple tests for proper diagnosis. There are primary fans and secondary fans, and they must be all checked before replacing the primary fan motor.I am having same issue with my 2016 Tahoe LTZ. I changed the sensor, and the connector. If I drive around town I am fine, but after long distances the gauge dies again causing the fan to kick on. I had a mechanic run the computer and it could see if there any codes and there were none. They were able see the temp even though the gauge was dead.For 60 years fans have turned themselves on and off depending on the needs of the coolant systems. What the OP described seems normal to me. However, the way tntfaguy describes it seems broken. 2015 1LT RS (M6) "Tyrone". 2015 Yamaha Stryker Bullet Cowl "Unnamed" :th_coolio:

They stay on for about 3-4 minutes after powering off. Archived post. New comments cannot be posted and votes cannot be cast. 2. 4. Sort by: AutoModerator. MOD • 3 yr. ago • Stickied comment. Moderator Announcement Read More ». kiboater. 62 posts · Joined 2012. #5 · Jan 18, 2020. Google "PIT5543A" No Crank due to discharged battery and "16-NA-152" Dead Battery No Start. Both bullitens outline incorrectly wired 2015-2016 Escalade, Yukon, Tahoe vehicles and this causes dead batteries.Kirk; The AC Operates fine and cools the rig. When the temperature reaches it goal the compressor turns off but the fan continues to run. Switching to the off setting does not shut down the fan and it continues to run. The only way I have been able to shut the fan off is to unplug the AC power.2017 engine fans running after shutting off. 2017 with 32k miles. I just ran some errands, a few miles on the highway in hold mode, mostly EV mode, ambient temp 87F. Arrived home and shut the car off, engine fans continued to run. Got back in and turned ignition on, coolant temp reported at 165F. Popped the hood and all coolant levels are ...Underhood Fuse Block. The underhood fuse block is located in the engine compartment, on the driver's side of the vehicle. To access the fuse/relay block, push in on the tabs on the end of the fuse/relay block cover and lift. Cadillac Escalade mk3 - fuse box - engine compartment. Fuses.4. Your engine runs poorly: The sensor affects almost every aspect of engine management. A bad one can easily cause a misfire or poor engine performance. 5. Increased emissions: If the sensor sends a faulty "cold" reading, the engine will run rich. As a result, carbon monoxide emissions will increase, and possibly hydrocarbons, as well.

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The fan can run when the ignition is off if the engine coolant is still too hot. This is normal behavior. So, check coolant level etc. Maybe your Ody needs some cooling system attention. (thermostat, radiator fins, coolant level, etc) Has your Ody been running hotter than normal? If that fan runs when the engine is cool, there is another problem.If you have something like torque or a scanner, check for codes or read the ECM temperature output. In my case there was a p0128 that wouldn't set a CEL as well as the ECM recognizing operating temps around 160 degrees. 2019 Z71 CCLB Pacific Blue Metallic. Other/former rides: 84 corvette (101k miles), 04 trailblazer LS (220k miles and …There is a sensor for the fan at the bottom of the radiator that should also be checked to make sure it is sending the signal to the fan motor. Lastly, when the engine is overheating, turn on the heater. If the air coming out of the vents is hot, then you have enough coolant inside the engine to operate the heater and might indicate a problem ...Asked by Tyus May 13, 2019 at 06:34 PM about the 2011 Chevrolet Equinox LTZ AWD. Question type: Maintenance & Repair. My dash on my 2011 equinox is saying "A/C off. engine too hot" but my gauge is reading cold. My. cooling fans keep running at least 10 min. after I. turn car off.If you have something like torque or a scanner, check for codes or read the ECM temperature output. In my case there was a p0128 that wouldn't set a CEL as well as the ECM recognizing operating temps around 160 degrees. 2019 Z71 CCLB Pacific Blue Metallic. Other/former rides: 84 corvette (101k miles), 04 trailblazer LS (220k miles and …A typical ceiling fan uses 60 to 75 watts of energy per hour even when running on high. This makes ceiling fans a very efficient alternative to a typical central air conditioning u...

The average cost range for replacing a Radiator Fan Relay of a Chevrolet Suburban falls between $39 and $46. 2. Replace the Temperature Sensor. Often, the problem lies in the temperature sensors. Unplug the sensors and check if the fan will stop. If it stops, then the sensors are faulty and need replacement.And, the second fan is running at 180 degrees (still don't know when it turns on) despite the PCM tuner guy's assertions that the second fan doesn't come on until 205. On the cold start this morning the primary fan was running, but I think it will come on if the A/C is running (it was). I'm thinking it's something the PCM tuner did.What an easy fix ! Subscribe for some more easy fixes and to save money.1992 was the last model year for the two piece blower and blower control unit. When the blower control unit goes bad, the blower will stay on indefinitely or stay off indefinitely. If your blower motor does shut off after a time, I suspect that the afterblow feature may be enabled. If the blower motor turns on and stays on the moment your ...A coolant leak in a Buick Enclave can cause the cooling fan to run continuously. The most common cause of a coolant leak is a faulty radiator cap, which can be easily replaced. If the coolant level is low, it can cause the cooling fan to run for longer than normal. It is important to inspect the hoses, clamps, and connections for signs of ...The thermostat is most likely stuck open, or the temperature sender/gauge is wrong. Fan running or not, the temp should hover around 180-190 or maybe a touch above under heavy load, not 160. The gauge may well just not be working. Your fan running after the engine is off is not entirely unheard of.Faulty Relay Switch. Your thermostat communicates with your air conditioner or furnace using a relay switch. The W wire will turn on your furnace and the Y wire will turn on your air conditioner. Unfortunately if thermostat switches go bad, it tends to mean the whole thermostat needs replaced. Solution.The voltage should be between 13.5 and 14.8 volts with the engine running. Switch on the accessories in your Escalade, for example, headlights, AC fan at full speed, and interior lights. The voltage should remain around 14 volts. If it drops and remain below 13.5 volts, it indicates a problem with the current supply from the alternator.In a gas furnace, the blower will continue to run if the fan switch on the thermostat is set to any setting other than auto. The blower on a furnace will also continue to run if it...Jan 19, 2019 · Conditions: Air temperature 30 degrees F. Front defrost button on. Auto shut off mode was active (fuel saving mode). As some point along her 20 mile trip the radiator cooling fan came on. I thought this was odd due to the air temperature. At stops the engine shut off as expected. Cooling fan continued to run. May 4, 2023 · 3. Bad ECU Unit. Your Chevy’s engine control unit signals the fan when to turn off or keep running. A defective ECU will result in the fan not knowing when to stop running. 4. Low Coolant Level. The car coolant is the liquid that removes heat from the radiator. The lower the coolant level, the less effective it’ll be.

Asked by Tyus May 13, 2019 at 06:34 PM about the 2011 Chevrolet Equinox LTZ AWD. Question type: Maintenance & Repair. My dash on my 2011 equinox is saying "A/C off. engine too hot" but my gauge is reading cold. My. cooling fans keep running at least 10 min. after I. turn car off.

The blower is supposed to stay on for a few minutes after the car is off. Look in your owners manual. I think it's primarily for cold weather, it keeps the car interior warm until the heater core completely cools down. Not to say you don't still have a problem separate from that.When the ECU doesn't get a signal from the ECT, it doesn't know if the coolant is too hot or not and so as a failsafe, it runs the fan at 100% to avoid overheating. The dash temperature gauge is controlled by the temperature data on the vehicle's CAN bus and since that signal is "0" the gauge reads the minimum which is 160F.There was a funny sound after I turned the ignition off. I figured out that it was the radiator fan running. After searching online I figured out that it may be normal when the engine runs for 30 minutes or so but what is really concerning me is that when I drove it for just 1 mile in my neighborhood, it still was on for 5-10 minutes afterwards.First post, be kind. I have just acquired a Mk 6 Fiesta Style Climate, 1.25 petrol, 93k miles. Loving it so far. One small issue - the cooling fan runs constantly, even from a cold start. From the Haynes manual, I believe the fan is thermostatically controlled and should only come on when the engine starts to overheat.Participant. My cooling fan is running high in my 2016 gmc yukon, It’s running high even after the truck is turned off for about 10 min and then finally shuts. I’ve changed the coolant sensor ...Thermostat Replacement. One potential solution to the issue of the Chevy Silverado fans continuously running is to replace the thermostat. A malfunctioning thermostat can lead to engine overheating, which in turn can trigger the fans to operate incessantly. For diagnosing this issue, a code reader can be utilized.in this video I will show you how to troubleshoot a cooling fan that runs all the time... Enjoy!!!2016 Escalade: CEL on, engine off but fan keeps running Locked post. New comments cannot be posted. Share Sort by: Best. Open comment sort options. Best. Top. New. Controversial. Old. Q&A. Add a Comment.Open all front and rear doors. Set the parking brake. Find the running board disable switch located on the center console below the HVAC climate control system. Turn the ignition switch to the RUN position, with the engine off, and toggle the disable switch three times within 20 seconds to activate the power running boards. Close all doors ...When it comes to keeping your vehicle running smoothly, one of the most important things you can do is to make sure you have the right air filter. The right air filter will help ke...

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Hi, has anyone encountered any problem with the engine cooling fan running after the engine has been switched off. I have an on-going intermittent fault when the cooling fan will run for as much as ten minutes, after leaving the car, as it appears that the fault is not related to either the external air temperature, or how the vehicle has been driven, ie fast motorway charge or slow country drive.Powering the 2016 Cadillac Escalade ESV is a 6.2-liter V8 engine that produces 420 hp and 460 pound-feet of torque. Power flows through an eight-speed automatic transmission to the rear wheels or ...26 posts · Joined 2016. #1 · May 24, 2017. I have a 2013; now that the weather is warmer, I notice that my engine cooling fans are running fast and loud at times. Engine temp is steady at mid-guage (straight up). Going in for service Thursday and want to have some data when I talk to the service rep. So, anyone else notice the fans are very ...I have a 2016 Ford Edge. The cooling fan will not stop running. I've driven it on several errands today and it was parked for over an hour the first time and about 40 min the second time. It was running both times I got back to the car. Just got home and its still running. I replaced a failing battery 2 weeks ago.2000 - 2006 Tahoe/Yukon/Escalade Models. Engine & Drivetrain . Engine is running cold ... Replacing the fan should not make the engine run cold. You either still have a thermostat problem or you are low on coolant or there is a lot of air in the system. ... This site uses cookies to help personalise content, tailor your experience and to keep ...There was a funny sound after I turned the ignition off. I figured out that it was the radiator fan running. After searching online I figured out that it may be normal when the engine runs for 30 minutes or so but what is really concerning me is that when I drove it for just 1 mile in my neighborhood, it still was on for 5-10 minutes afterwards.2. Blown fuses. One of the first symptoms of a bad or failing AC blower motor relay is a blown AC blower motor relay circuit fuse. If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Any sort of electrical spikes or excessive current ...Are you an avid baseball fan who loves staying up-to-date with the latest standings? With the advancement of technology, accessing live baseball standings today has never been easi... ….

August 31, 2023 by John M. Buick Encore fan won’t turn off due to a faulty cooling fan relay and a defective coolant temp sensor. In most cases, a bad coolant temperature sensor is the main culprit that prevents the radiator fan from turning off. If you want to bring the cooling fan back to normal operating condition, you must inspect both ...When it comes to keeping your vehicle running smoothly, one of the most important things you can do is to make sure you have the right air filter. The right air filter will help ke...Touch the cable ends together (away from the battery) for 15 seconds. (Note: If the cables will not reach each other, a jumper wire can be installed to connect the cables.) 3. Reconnect the cables Positive Cable First to avoid any voltage spikes.Budding Enthusiast. 3. Name: JONATHAN. Ford Model: Mondeo Vignale. Ford Year: 2018. UK/Ireland Location: Nottinghamshire. Posted September 1, 2019. Hello, we have just purchased a 2018 Mondeo Vignale 2.0 Diesel, since we have had it the cooling fan is constantly on when the engine is running. The temp gauge is showing correct.How reliable is the 2008 Cadillac Escalade? See the most common repairs performed and learn if your vehicle is at risk for major repairs in the next 12 months. It could be related to faults found in the fan relay, temperature sensors, ECU unit, high-pressure switch, coolant liquid, or the thermostat. Additionally, it may be programmed to run the cooling fan to blow air at the turbo to prevent “coking” the oil when the car is shut off. To troubleshoot the issue, you can check your engine coolant ... About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...The average cost range for replacing a Radiator Fan Relay of a Chevrolet Suburban falls between $39 and $46. 2. Replace the Temperature Sensor. Often, the problem lies in the temperature sensors. Unplug the sensors and check if the fan will stop. If it stops, then the sensors are faulty and need replacement.Hello, I have a 2013 Escalade with auto climate control. The fan blower motor stays on when the truck is off. I've replaced the fan blower motor resister, and it worked for a little then failed and only runs on high speed, both when the truck is on and when it's off. The fan blower motor does seem slightly difficult to spin. 2016 escalade fan keeps running, Escalade ESV. Yukon XL, Suburban. 9.50. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors. MSRP $226.43. $143.27. Add to Cart. N/A. Passenger Side Complete Locking Differential Clutch Disc Set with Guides. 23404635., The answer is yes while not moving, but you can set them to stay down while in a carwash or parked in the driveway through the settings menu (hard to find)., The fan can run when the ignition is off if the engine coolant is still too hot. This is normal behavior. So, check coolant level etc. Maybe your Ody needs some cooling system attention. (thermostat, radiator fins, coolant level, etc) Has your Ody been running hotter than normal? If that fan runs when the engine is cool, there is another problem., A cost-saving way to fix the broken ac-fan regulator will be shown in the video., Golf is a sport that captivates millions of players and fans around the world. Whether you’re a professional golfer or an avid fan, keeping track of the latest scores and standings..., I have a 2015 compass high altitude. A week ago I noticed the radiator fan running over an hour after turning the car off. The only way to turn it off (short of disconnecting the battery) is to remove the 40 amp fan relay. I've swapped the relay and even tried disconnecting the wires from the coolant temperature sensor, but the fan still runs., Recommended Fix. Incorrect thermostat setting. Check and ensure the thermostat is set to "Auto" fan mode. Malfunctioning thermostat. Inspect the wiring connection of the thermostat. Fix the loosened one. If required, replace the bad thermostat. Malfunctioning pressure switch. Clean the blockages from the heater vents., Plugged in my handy Elm Bluetooth Scanner int he OBD2 plug and here it read the fault code P0307 (Misfire 7th Cylinder). Figured ok well 100k, probably has original plug/wires. So i changed the plugs and wires. This did not fix the issue. It was still Misfiring., We finished the ride home pulled in the driveway and I checked again, still cold! Also the fans were running full tilt engine off. I restarted it a couple of time no change. fans on and temp gauge didnt budge. As I was looking for the fan relay to pull it the fans shut off after about 10 minutes with the engine off. Also no CEL light., They stay on for about 3-4 minutes after powering off. Archived post. New comments cannot be posted and votes cannot be cast. 2. 4. Sort by: AutoModerator. MOD • 3 yr. ago • Stickied comment. Moderator Announcement Read More »., Conclusion. In summary, a constantly running evaporator fan can be caused by dirty coils, a malfunctioning thermostat, a damaged motor, or a faulty defrost timer. By addressing these issues and performing regular maintenance, you'll keep your fridge in tip-top shape and avoid unnecessary energy consumption., 2015 Radiator Fan/Coolant Temp Issue. 2015 GMC Sierra 5.3. The other day I noticed my radiator fans constantly running at full blast and staying on for 5 minutes after shutdown - saw that the coolant temp gauge was pegged low. I replaced the coolant temp sensor and the problem is still there. Looking at the live data on my OBDII scanner, I can ..., We would like to show you a description here but the site won't allow us., In a gas furnace, the blower will continue to run if the fan switch on the thermostat is set to any setting other than auto. The blower on a furnace will also continue to run if it..., Fuse box diagram (fuse layout), location and assignment of fuses and relays of Cadillac Escalade (2014, 2015, 2016, 2017, 2018)., I’ve never owned a Tahoe before, I did however own a 2016 Silverado with the 5.3 a few years ago and never noticed anything like this. My first thought was maybe ascending up the mountain pass it got a little hot and the fan is designed to keep running until cool, but I’m just guessing. Anybody have any thoughts on this?, Took my 2018 GMC Yukon XL to the dealership to fix the compressor for the rear air shocks. The compressor will start constantly for anywhere from 30-40 seconds. In a 25 minute drive it will start and run about 10 time. There were no codes indicating any issues. The dealership removed the air lines and determined there was no leak., The 2016 Chevy Silverado has an electric cooling fan that is controlled by the vehicle's computer system. If this fan does not shut off, it is likely a problem with either the computer or the wiring connecting it to the engine. To diagnose and fix this issue, you should start by checking all of your fuses and relays related to the cooling ..., If the relay is stuck in the closed position, the fan will continue to run until the relay is disconnected. Low coolant level – The coolant is responsible for keeping the engine cool. If the coolant level is low, the engine may overheat, and the fan may stay on. Clogged radiator – A clogged or furred-up radiator can prevent the coolant from ..., Over the past 10 years, Hans has been focused on building CarCareKiosk, which is visited by millions of drivers each month. Be cool under pressure. Your coolant should perform well under any condition - just like Aaron Rodgers! 2016 Cadillac Escalade ESV Luxury 6.2L V8 FlexFuel. Secure precious cargo., 2015 Radiator Fan/Coolant Temp Issue. 2015 GMC Sierra 5.3. The other day I noticed my radiator fans constantly running at full blast and staying on for 5 minutes after shutdown - saw that the coolant temp gauge was pegged low. I replaced the coolant temp sensor and the problem is still there. Looking at the live data on my OBDII scanner, I can ..., This will cause the fans to run at all times. I would use a scan tool that can view live data to see if the computer is reading 160 degrees as well just to verify it is not the instrument cluster that is the issue. If the coolant temperature sensor is reading 160 on the scan tool then it is most likely just a bad temperature sensor. Once that ..., I have a 2014 Chevy Silverado 1500 5.3l that I am having a issue with the cooling fans running on high occasionally. When this happens my temp gauge will read zero and when I kill the engine the fans stay on. The only way to shut them off is to crank the engine and shut it right back off. I have been through two temp sensors and still have the ..., How much to replace the battery in my Cadillac? Depending on power, size, and quality, prices for a replacement car battery range from about $45 to $250. Your local dealership, auto parts store or ..., If the relay is stuck in the closed position, the fan will continue to run until the relay is disconnected. Low coolant level - The coolant is responsible for keeping the engine cool. If the coolant level is low, the engine may overheat, and the fan may stay on. Clogged radiator - A clogged or furred-up radiator can prevent the coolant from ..., cooling fan will not come on until about 230 degrees, if fans still do not work. check the fuses and relay. if ok then run a wire to fan from battery.on fan side connection, run a wire from battery positive to fan connection. run a wire from negative to ground connection.if fan will not come on it is either bad or the coolant temp, sensor is ..., 2005 GMC Z71 1500, W/ Dual digital climate controls. While driving today blower motor Kicked out, I turned up the fan speed and it kicked back in. Got to my destination, turned off the key and the blower kept running. Took my climate controls out and the fan continued to work, ended up pulling the 40amp fuse in the engine bay to …, 890 posts · Joined 2008. #1 · Jan 27, 2011. Afternoon everyone, 08 ESV with power retractable steps... I keep the steps off during winter when theres ice and snow... After the first year of owning my vehicle, noticed the passenger side started getting slow (slower going down and up then driver side, also makes a different sound (motor is ..., Airborne369 Discussion starter. 2 posts · Joined 2020. #1 · Dec 13, 2020. My engine fan runs continuously while driving and for about 5 min after engine cut off; my temperature gage shows less than 160. I've checked coolant level and it is good, scheduled service for tomorrow morning with south Charlotte cadillac, any ideas 💡., This is a relatively common problem with these trucks. It appears that the problem is with the Engine Coolant Temperature (ECT) sensor or its wiring. When the ECU doesn't get a signal from the ECT, it doesn't know if the coolant is too hot or not and so as a failsafe, it runs the fan at 100% to avoid overheating., Jetta, passat. Jul 12, 2021. #30. Yes it is normal for the fan to run after shutting off for a few mins until temp drop below 212, however a bad fan controller will cause the fan to stay on indefinitely. If you have a big and small fan configuration it is in the big fan housing., Problem Description. One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. This can result in incorrect air delivery or temperature. If this occurs, fault code (s) stored in the HVAC control module should be available to assist with diagnoses. 170 people reported this problem., Your Cadillac fan may keep running due to issues like a faulty temperature sensor or relay, low coolant, or problems with the fan motor. Why Is My Cooling Fan Not Shutting Off? The cooling fan may not shut off due to issues with the thermostat or a malfunction in the fan relay.