My 2015 Yukon Denali XL's engine fan runs 10-15 minutes after I shut it off. Even at cold starts, the engine fan engages. The temp gauge read more. High School Diploma. 6,359 satisfied customers. 2015 GMC Yukon Denali XL 6.2 I was hoping someone could provide factory information for cooling fan operating conditions.1055 posts · Joined 2011. #6 · Jan 13, 2012. not shutting off is going to be a lot easier to diagnose as opposed to not turning on - that could be bulbs, wiring, controls, etc. 2006 Silverado - DD. 2000 Gmc Sierra -Sold. 1990 Honda Accord Ex - SPL Car. 1986 Toyota Hilux - bagged truck project. Share. Like.Reference Number (s): PI1429, Date of Issue: March 5, 2015. AFFECTED MODEL (S): 2015 Chevrolet Colorado, GMC Canyon. CONDITION/CONCERN. Some customers may comment that they cannot remove the ignition key and/or that the key may not fully rotate to the "off" position (Engine does shut off). Customers may also …To shut off the fan entirely, either turn the fan control all the way to the left, or push the button labeled with a power icon (ф) or “ON/OFF.” If you have an automatic climate control system, pressing the AUTO button will put the fan setting into an automatic control mode and the fan will vary depending on the environmental conditions to ...If you’re a fan of simulation games and have a passion for trucks and driving, then Euro Truck Simulator 2 is the game for you. Released in 2012 by SCS Software, this game has gain...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 shut it off so I don't kill my battery.When facing a fan that won’t turn off in your 2015 Yukon Denali, it’s essential to diagnose the problem with the climate control module. Follow these steps to troubleshoot the issue: Check the fan speed setting: Ensure that the fan speed control is set to the “off” position. It might seem obvious, but sometimes an accidental switch can ...So the fan on engine off will start at 225 degrees water temp and will run for 300 seconds. if your engine is off, like not even in accessory on, and the fan runs for more than 300 seconds then there is one of two problems: 1) there is a temp sensor failure or bcm hiccup. 2) your water temp is over 254 and it’s in emergency mode.StealthBoogie. 109 posts · Joined 2012. #5 · Mar 29, 2012. I ll start with the basics, is your light knob tuned on to the parking lights and not on auto or off ?? lol, never know. Also sometimes it can be the truck being unlocked. after confirmimg your lights are actually turned off. lock your truck and wait approx 5 min.Solving your Chevy fan’s problem is easy because the likely causes are few. Here are some solutions to why the Chevy Suburban fan won’t turn off even when the engine is powered off: 1. Replace Fan Relay. The way to determine if the fault is from the fan relay is by replacing it, running it, and determining if the problem persists.If you’re in the market for a new pickup truck, you may be considering the 2020 GMC Sierra 1500. The 2020 Sierra 1500 comes with some noteworthy improvements over the previous year...Oct 26, 2021 ... In this video I have a look at 2007 Chevrolet Classic 5.3 that came in with the engine light on and a customer complaint of no cooling fans.Solution: Park your car on a level surface and turn the engine off. Let it sit for a few minutes to cool down the engine. Open the car’s hood and access the coolant tank. Dip the stick and check the coolant level to ensure it is at the recommended level. If it is down, refill the good quality coolant.Temp gauge not working and fan won’t shut off. Did anyone ever figure this out? 62 people found this helpful. Mark helpful. 2,190 Report; C. answered 4 ... Hello everyone , i have a 2028 2lt Cmaro , my AC stopped working , and fan wont shut off i was told it needs new thermostat and new sensor now that i got al this fixed up, fan turns off …Located in the passenger side footwell on the right side. Few bolts and it comes right out. The part number for my 2003 EB Expy was slightly different. 1997-2006 Expedition & Navigator - A/C fan won't shut off - '03 Expy EB, the fan is stuck on high speed, it won't turn off. All the digital controls seem to work, I can change where the air ...My Daughter has a 2006 Tahoe 1GNEC13Z16R168237. It has about 150,000 miles. Yesterday, when she tried to start the car the battery was dead. She got the battery charged up (I think she actually got a new battery under warranty), but to make a long story short,.. the heater fan won't shut off when she shuts off the car, so after a few hours …In this video I explain why your radiator cooling fan keeps running and won't turn off after shutting off the engine. It is normal for the fan to keep runnin...Solution to radiator fan continuing to run when engine is off. I have posted here before about an intermittent problem with the radiator fan staying on after the engine is shut off. The strange part was that when the problem happened the coolant temp gauge on the dash would drop to dead cold. It would create a faulty coolant temp code and as ...In this video I explain why your radiator cooling fan keeps running and won't turn off after shutting off the engine. It is normal for the fan to keep runnin...How to shut of your radio in a gmc sierra or chev silverado after the key is removed from the ignition and to reset the radio to work normally.Hope this help...16 posts · Joined 2010. #1 · Jul 3, 2010. When I start my truck I can't turn it off with the key in the ignition. I can only shut it down by pulling the ignition/ecu fuse. I replaced the ignition switch with a new one and I am still having the same problem. I put the new switch in, adjusted it forward and backward to find the start and stop ...To shut off the fan entirely, either turn the fan control all the way to the left, or push the button labeled with a power icon (ф) or “ON/OFF.” If you have an automatic climate control system, pressing the AUTO button will put the fan setting into an automatic control mode and the fan will vary depending on the environmental conditions to ...Does your 2014-2018 Chevy Silverado, GMC Sierra, Suburban, or Tahoe radiator fan keep running? Here are the symptoms: Fans keep running, air conditioner stops working, temperature gauge...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 ...Bump fan relay while they are running and engine cool may stop fans if it’s the relay ,Is vehicle shifting correctly low coolant can do this to trans and fans. Last but not least thermostat may be sticking . It’s nothing major something reflectively small I would think. Good Luck with your Tahoe they are good trucks. 10 people found this ...Temp gauge not working and fan won’t shut off. Did anyone ever figure this out? 62 people found this helpful. Mark helpful. 2,190 Report; C. answered 4 ... Hello everyone , i have a 2028 2lt Cmaro , my AC stopped working , and fan wont shut off i was told it needs new thermostat and new sensor now that i got al this fixed up, fan turns off …470 posts · Joined 2013. #5 · Feb 17, 2014. Finally got to pull the fuse off and disconnected everything. Its pretty well corroded, so off to buy a new one. Just hope the connector part is ok. Its amazing what salt and weather can do in a short time. 2011 Chevy Silverado 2500HD Duramax CC LT 4x4 - Z92 ALC Package.Fan still running for a few minutes after truck turned off. I drove my truck today 2019 colorado v6. It was about 50 degrees (F) outside. When I got home the fan stayed on even when the key was out …Couple of weeks ago while driving my KW with the a/c on my engine fan came on and wouldn't shut off. Sometimes it would with the a/c off and sometimes... Log in or Sign up. Forums. Forums. ... C15 engine fan won't shut off Discussion in 'Trucks [ Eighteen Wheelers ] ' started by ... #1 CDL Truck Driver Message Board. Forums > The …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 ...It’s usually normal for a fan still running when car is off for several minutes. This phenomenon cools down the generating engine’s heat, extending the engine’s lifespan. However, in case of the fan running when car is off for a long time, there are problems with the cooling system. Check related components, such as coolant level ...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 ...Bump fan relay while they are running and engine cool may stop fans if it’s the relay ,Is vehicle shifting correctly low coolant can do this to trans and fans. Last but not least thermostat may be sticking . It’s nothing major something reflectively small I would think. Good Luck with your Tahoe they are good trucks. 10 people found this ...Heater fan problem on 2004 Silverado 1500. Hi. A couple weeks ago the resistor died for the heater fan on my wife's 2004 Silverado. I bought one at the local parts store for $65.00 because I needed it in a hurry. It made it two weeks and now it is cooked again. The black ground wire in the plug that plugs into the resistor is also burned.1) My 2015 Yukon Denali’s engine temperature gauge intermittently reads zero and the cooling fans come on where the computer assumes the sensor has failed so the car goes into a protective safe mode (fans run constantly - better too cool than too hot). if the Car is shut off with the fans running, they start up again when the car starts and ...The radiator cooling fan on my 2016 GMC Yukon Denali, 117,000, runs on high after start and continues to run for a couple minutes after engine is shut off. This hasn't happened before. The temp gage stayed on zero (160) after a 10 mile drive. No warning lights except oil change reminder, and it...Posted on Feb 03, 2009. SOURCE: 2005 GMC Envoy SLE blower fan speed #5 is not working. More than likely this should just be your resistor. You have different sized coils on the back of your resistor for all the different fan speeds. if one of them burns out or breaks then that certain speed will not work.Amp bypass using PAC AmpPro. 2009 - 2014 Ford F150 - Fan wont't shut off - I have a 2014 f150 lariat and the air is on always. It blows at one speed whether the air is on or off. I went to Auto Zone and bought a motor blower resistor and that made the air go off and not come back on at all not even when you turn it on.If that is your problem, you have an AC clutch that is sticking; or, the AC relay is staying operated. If this problem stays on all the time, or the next time it happens, remove the AC relay. If the AC stops being cold, replace the AC relay. If the AC cold continues, you have an AC clutch that won't release.Got a 2015 Tahoe the electric fans stay on after I cut the truck off. I changed out the thermostat and the temp sensor, but I can’t figure out the problem, now the heater blows cold air and the air blows hot air I’m lost please need help TIA ... Im thinking the coolant temp sensor had a freakout and the electric fans just fail-safe turned ... Hey everyone, got in my truck last night and when I turned it off I noticed my radiator fan kept on running. So today I drove it around and noticed my temperature gauge sat at 160 for the entire drive. 2006 Silverado intermittent HVAC fan issues. I am new to this forum and looking for some help diagnosing an issue that has grown in the last few months. I have a 2006 Chevrolet quad cab Silverado with the auto/digital dual HVAC system. About three months ago, the system suddenly went to full blast and would not stop even with the car turned off.Turning off the system - no change.Turning the key off - still full on. I returned to the house to troubleshoot a little. I thought maybe a relay or something locked up, so I disco'ed the battery. Putting power back to the system Fan always comes back on full speed - key not even in ignition. Pulled and replaced fuse.May 24, 2010 · Re: Blower Fan not working. « Reply #13 on: July 01, 2010, 07:02:16 PM ». RFI (Radio frequency interference) is usually caused by large moving magnetic fields (emi) electromagnetic interference. If you are running a cb or am radio it may be necessary to do everything you can to reduce it. Crossing or twisting wires helps as well as filters etc. As you may know the coolant fan relay turns the fans off and on by receiving information from the coolant temperature sensor at specific temperature thresholds. When this relay is not working properly, this can cause the fans to come on intermittently, stay on all the time or sometimes not at all. When this happens you will notice a temperature ...Jan 16, 2011 · Yes, the fan/resistor pack getting power all the time is a sign of a problem upstream. But, it won't cause the fan to fail, other than over a long time of the fan being on all the time (ie, it wears out). Feb 5, 2022 · 3746 posts · Joined 2016. #24 · Feb 6, 2022. The relays are triggered by a ground signal, there are 2 wires coming from ECM that trigger them to come on with ground. One of those may be broken and contacting body somewhere and allowing the fans to be stuck on. To shut off the fan entirely, either turn the fan control all the way to the left, or push the button labeled with a power icon (ф) or “ON/OFF.” If you have an automatic climate control system, pressing the AUTO button will put the fan setting into an automatic control mode and the fan will vary depending on the environmental conditions to ...2000 Impala 3.6 litre Blower fan for the heater and AC in the dash would not shut off. Kept running when car engine was shut off and key removed from ignition. Drained the battery. Jumped started car … read moreAug 28, 2010 · I have a 1998 GMC Safari Van. On a road trip the AC blower fan just shut off front & back. Tried moving the fan speed control and nothing. Shut off all AC and fans. 20min later turned it back on and i … read more 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 ...The 2016 Yukon Denali radiator fan won’t turn off, indicating a potential issue with the fan relay or temperature sensor. This malfunction can cause the engine to overheat and result in damage if not addressed promptly. The 2016 Yukon Denali is known for its powerful engine and luxurious features. However, if you encounter a problem with the ...comfort. Participant. I have a 2015 Yukon XL Denali. The temp gauge drops to 160 and the fan comes on intermittently. We have changed the thermostat, wire …Right turn signal won't blink or turn off. I drive a 1999 silverado 1500 Z71 and today on my way home i noticed the right blinker was frozen on and wont turn off, but the left one works fine. I've already tried replacing the flasher relay under the dash and nothing happened. Even when there is no relay in the box it stays on.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 ...Chevy Mechanic: Chris (aka-Moose) Yes, the vehicle is safe to drive. If yo would like to diagnose to see if there is a concern needing a repair. Step one will be a diagnostic tool connected to test and see why the fan is being commanded on. Ask Your Own Chevy Question.The 2016 Yukon Denali radiator fan won’t turn off, indicating a potential issue with the fan relay or temperature sensor. This malfunction can cause the engine to overheat and result in damage if not addressed promptly. The 2016 Yukon Denali is known for its powerful engine and luxurious features. However, if you encounter a problem with the ...The first step is to ensure the engine is off and the ignition key is removed from the vehicle. Safety should always come first. 2. Check the Coolant Level: A low coolant level can sometimes trigger the fan to run excessively. A sufficient coolant can result in accurate temperature readings.Jan 28, 2015 · 2 posts · Joined 2015. #1 · Jan 28, 2015. I have a 2006 GMC sierra 1500 HD. Recently the blower motor started to malfunction. simply, the blower will not shut off even with the vehicle off. The only way to turn it off is to pull the blower motor fuse. Also, when the blower is on it will only run in high. the climate control adjustment is not ... Aug 8, 2018 ... How to fix Radiador Fan that wouldn't shut off...,Honda, Nissan, toyota, acura, kia ,lexus, chevy, Cadillac, ford, bmw, mercedes, etc.145 posts · Joined 2009. #1 · Jul 22, 2011. It's the time of the year that my truck develops it's issues. Now all of the sudden the truck won't shut off until I open the door. When I take the key out the dash shuts off and the shifter locks and everything shuts down as it should, but the engine stays running.Reference Number (s): PI1429, Date of Issue: March 5, 2015. AFFECTED MODEL (S): 2015 Chevrolet Colorado, GMC Canyon. CONDITION/CONCERN. Some customers may comment that they cannot remove the ignition key and/or that the key may not fully rotate to the "off" position (Engine does shut off). Customers may also …It’s usually normal for a fan still running when car is off for several minutes. This phenomenon cools down the generating engine’s heat, extending the engine’s lifespan. However, in case of the fan running when car is off for a long time, there are problems with the cooling system. Check related components, such as coolant level ...1055 posts · Joined 2011. #6 · Jan 13, 2012. not shutting off is going to be a lot easier to diagnose as opposed to not turning on - that could be bulbs, wiring, controls, etc. 2006 Silverado - DD. 2000 Gmc Sierra -Sold. 1990 Honda Accord Ex - SPL Car. 1986 Toyota Hilux - bagged truck project. Share. Like.The weight of a standard GMC Sierra 1500 pickup truck with a 4.3 liter V6 Vortec engine is about 4,460 pounds, according to the GMC website. There are a lot of variables that can a...RJ_01dmax Discussion starter. 261 posts · Joined 2009. #1 · Jan 22, 2010. Today when I was driving home...about a 2 hour drive, my heater would not shut off. Usually when I turn the fan control to the off posistion it will still blow air, but the temp control would work. Today there was nothing but very hot air coming out.Today, everyone’s favorite hip little mail app, Mailbox shuts down forever. Unlike most apps, you won’t be able to use the Mailbox app at all once it does. Thankfully, a lot has ha...Oct 26, 2021 ... In this video I have a look at 2007 Chevrolet Classic 5.3 that came in with the engine light on and a customer complaint of no cooling fans.As 2020 has proven, some years are certainly challenging for sports fans. With leagues temporarily shut down due to the novel coronavirus pandemic, many sports fans turned to sport...Mullen Automotive wants to acquire Electric Last Mile Solutions. Here's why this deal won't save MULN stock, if it even happens. This acquisition isn't the last mile solution that ...18 posts · Joined 2022. #1 · Apr 7, 2022. Hello all. I recently bought a 2017 and after driving it about 1500 miles (74500k on vehicle), Something strange started happening. When I got to work yesterday, I noticed the fan running after I shut the engine off. I opened the hood, checked the coolant it was good. Felt the hoses they were luke ...Blower fan won't shut off. Semi-urgent issue, my blower motor runs continuously with engine off, key out. I believe it's on high, dash control fan speed has no effect, it runs non-stop. Can still however change from face, to feet, to defrost... Issue started 10 minutes into an 8 hour tow from up north, I pulled the "Blower" fuse from under the ...Heater fan problem on 2004 Silverado 1500. Hi. A couple weeks ago the resistor died for the heater fan on my wife's 2004 Silverado. I bought one at the local parts store for $65.00 because I needed it in a hurry. It made it two weeks and now it is cooked again. The black ground wire in the plug that plugs into the resistor is also burned.After the vehicle is shut OFF if the engine coolant temperature at key-off is greater than 101°C (214°F) the low speed fans will run for a minimum of 60 seconds . After 60 seconds , if the coolant temperature drops below 101°C (214°F) the fans will shut OFF. The fans will automatically shut OFF after 3 min. regardless of coolant temperature.1 post · Joined 2014. #1 · Sep 11, 2014. Hello, Recently came out to a completely drained battery. After charging and restarting the truck, then shutting it off, I heard the pump running continuously. Could not get it to shut off so I disconnected the battery. There is no fuel pump relay so I'm thinking the problem might be with the Fuel Pump ...The radiator fan won’t turn off and engine temperature gauge doesn’t work.So we just replaced thermostat, cleared code (the car doesn’t have check engine lig...#1 · Apr 16, 2022. 2015 SLE, 52k miles. Engine cooling fan comes on...loud...full blast and won't turn off. When this happens, coolant temp sensor stops working, and AC …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 ...470 posts · Joined 2013. #5 · Feb 17, 2014. Finally got to pull the fuse off and disconnected everything. Its pretty well corroded, so off to buy a new one. Just hope the connector part is ok. Its amazing what salt and weather can do in a short time. 2011 Chevy Silverado 2500HD Duramax CC LT 4x4 - Z92 ALC Package.I felt the radiator hose and coolant reservoir and they were only lukewarm. The temp gauge showed dead cold, even after a 7 mile …A/C - Blower Motor Inoperative or Won't Shut OFF Bulletin No.: 06-01-39-002C Date: January 18, 2008 TECHNICAL Subject: Blower motor Inoperative or May Not Shut Off in Extremely Low Ambient Temperature Conditions (Replace Blower Motor Control Module) Models: 2004-2007 Buick Rainier 2003-2006 Cadillac Escalade ModelsReplace The Thermostat. Replacing the thermostat can be another solution to the problem of Chevy Silverado fans running. A faulty thermostat can cause the engine to overheat, which in turn can cause the fans to keep running. Use a code reader for the diagnosis. The cost of replacing the thermostat can vary.1843 posts · Joined 2015. #3 · Apr 21, 2017. Some door latches have 2 outputs for the Driver door ajar signal. 1 activates the dome lamp and the other cancels RAP ( retained accessory power). #2 may also be what wakes the bcm up and then the bcm sends the wake up signal to the radio. That may be the cause of the delayed radio function.
So the fan on engine off will start at 225 degrees water temp and will run for 300 seconds. if your engine is off, like not even in accessory on, and the fan runs for more than 300 seconds then there is one of two problems: 1) there is a temp sensor failure or bcm hiccup. 2) your water temp is over 254 and it’s in emergency mode.. Gosq.com florida
If your laptop fans are running louder or more frequently than usual, this could be a sign that your laptop is running too hot and needs better air flow, or it could mean that your...The heater fan wont shut off even when you shut the vehicle off and take the keys out. ... I went to turn off truck and the heater fan did not shut off, ... Master GM Technician. Over 20 years of bumper to bumper GM experience. Mike S. Chevy Mechanic. 2,417 satisfied customers.Options. This can be caused by a few things. To diagnose it you need to work backwards: 1. Bad battery or low charge, or bad connections at the battery terminals. If the terminals are full of white snowy looking stuff disconnect them and clean them up. If a terminal is loose (you can turn it with your hand) tighten it. Check the battery voltage.Oct 31, 2021 · Truck Model. c10. Engine Size. smokin' 305. Bextreme04 said: Any square 1980 and earlier will not have an "off" setting for the blower. It will always run at least a little bit. Used to have a scan of an old GM advertisement touting this feature, since lost to a broken phone. They called it their constant cabin ventilation or something similar. Blower fan won't shut off. Semi-urgent issue, my blower motor runs continuously with engine off, key out. I believe it's on high, dash control fan speed has no effect, it runs non-stop. Can still however change from face, to feet, to defrost... Issue started 10 minutes into an 8 hour tow from up north, I pulled the "Blower" fuse from under the ...Ryan Lutton. GMC Master 1,267 Answers. Posted on Mar 18, 2011. The fan for the heater right? If so, for the autoclimate control you need to replace the blower motor countrol module. If it's manual controls, replace the blower motor resistor assembly.1 answer. 2003 gmc sierra heat will not blow hot air. Changed thermostat, resistor, both heater core hoses are hot to touch and the coolant is full. if the blower motor motor is working then its a blocked heater core or a faulty shut off valve ,i would need to get my head under the bonnet and then the dash to find the fault to be honest.Ryan Lutton. GMC Master 1,267 Answers. Posted on Mar 18, 2011. The fan for the heater right? If so, for the autoclimate control you need to replace the blower motor countrol module. If it's manual controls, replace the blower motor resistor assembly.It’s usually normal for a fan still running when car is off for several minutes. This phenomenon cools down the generating engine’s heat, extending the engine’s lifespan. However, in case of the fan running when car is off for a long time, there are problems with the cooling system. Check related components, such as coolant level ...ncdmax Discussion starter. 2 posts · Joined 2014. #1 · Feb 25, 2014. Ive got an 06 Silverado and last night after I shut the truck off. we was standing there talking bout 30 mins or so and my fans kicked on and wouldn't shut back off so I pulled the fuse so it wouldn't kill my batt . I changed the temp sensor in the drive side head but it ...Blower fan won't shut off. Semi-urgent issue, my blower motor runs continuously with engine off, key out. I believe it's on high, dash control fan speed has no effect, it runs non-stop. Can still however change from face, to feet, to defrost... Issue started 10 minutes into an 8 hour tow from up north, I pulled the "Blower" fuse from …Robots may revolutionize the way we live and work, but it's less clear when. Rethink Robotics, a Boston-based industrial robotics company that aimed to make factory workers more ef...Euro Truck Simulator 2 is a popular simulation game that allows players to experience the thrill of driving a truck across Europe. Whether you are a fan of the genre or simply curi...So the fan on engine off will start at 225 degrees water temp and will run for 300 seconds. if your engine is off, like not even in accessory on, and the fan runs for more than 300 seconds then there is one of two problems: 1) there is a temp sensor failure or bcm hiccup. 2) your water temp is over 254 and it’s in emergency mode.The heater fan wont shut off even when you shut the vehicle off and take the keys out. ... I went to turn off truck and the heater fan did not shut off, ... Master GM Technician. Over 20 years of bumper to bumper GM experience. Mike S. Chevy Mechanic. 2,417 satisfied customers.Reply. 2009 - 2014 Ford F150 - Climate Control won't turn off - I have the dual-zone climate control which has been working (more or less) fine since I bought the truck in 2014. All of a sudden, the damn thing doesn't want to turn off. In fact, when I turn it off the fan speed cranks up to what feels like high or max!If you turn the "service selector" switch to off (heat/AC/vent switch), then the blower shuts off . 1) With ignition off but blower fan running, if Relay #31 (Under hood, second from firewall) is pulled, blower stops. 2) Swapped that relay with adjacent identical. However problem NOT solved (identical symptoms).
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