2015 Sierra 1500 5.3 Cooling fans not running/fan relay. Hi, I am having some issues with my cooling fans. I have a 2015 Sierra 1500, 5.3 WT. I cannot get the cooling fans to turn on. The truck will overheat before they kick on. I tried to force them on through hp tuners scanner and nothing. Both fan fuses are fine and I do not have any codes.9 posts · Joined 2019. #1 · Oct 14, 2023. Hello, This past week, my truck went into engine power is reduced mode and the truck started shaking pretty rough. I had this issue, minus the shaking, a few years ago. All I did then, was clean the throttle body with throttle body cleaner and that was that, never came up again for a few years until now.2014 silverado has engine fans running after truck turned off, I've replaced thermostat and temp sensor and fans still - Answered by a verified Chevy Mechanic. By chatting and providing personal info, ... 2014 Chevy 1500 Silverado V6 radiator cooling fan keeps coming on. I already replace the temperature control, it quit for 2 weeks and now ...Step 6. Inspect the thermostat if there are no coolant leaks. Allow the truck to run with the pressure cap tightened on the radiator. Watch the gauge as it is running; when it is overheating, turn on the heater. Turning on the heater will make the temperature gauge drop; then you will know that your thermostat is freezing and not allowing the ...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 ...Unfortunately, with this component comes the issue of the fan running even with the truck turned off. This is often dangerous and has costly consequences. Usually, if the fan does not shut off, it is often related to either the wiring or the computer. ... Chevy Silverado Fan Won't Shut Off. The Chevy Silverado is known to be a powerhouse of a ...5 posts · Joined 2021. #1 · Sep 3, 2023. I've been having this issue with my 2000 Silverado 2500 for about a year now. I have no idea what it is, and my dad, who usually can figure stuff like this out, had no idea either. I've looked on the internet and found some similar issues, but no one seems to be having this exact problem.Stubok22 Discussion starter. 14 posts · Joined 2016. #1 · Oct 7, 2016. Hi all. I've had my Q5 for about 6 weeks now and I've noticed from time to time that the fan continues to run after the car is switched off, sometimes for up to 15 minutes. I called the dealer and they say it's normal, but wanted to check so see whether it's common or not.Bulletin No.: PIT5327 Date: Sep-2014 Subject: Engine Stays Running After Ignition Key Turned Off Models: 2014 Chevrolet Silverado 1500 2015 Chevrolet Silverado 2014 GMC Sierra 1500 2015 GMC Sierra The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.Ensure all battery connections are secure and clean to prevent power leakage. Examine the starter solenoid, which may be faulty if engine keeps running when ignition is turned off. Replace any damaged parts such as spark plugs, wires, coils, etc., to restore proper functioning of the engine system.Loud fan noise while truck is running and the noise continues after turning truck off. Started yesterday, anyone have any idea what it is? Truck is off in the video, pug tax at the end. ... 2021 Chevy Silverado 1500 - makes this noise randomly, usually multiple times at once then not again for a while. ...3. 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.If you’re a truck driver or own a trucking company, finding loads to haul is essential for keeping your business running smoothly. In the past, this process may have involved count...The cooling fan relay will be commanded ON when the following conditions are met: - The engine coolant temperature reaches 106°C (223°F) or more. - The A/C clutch requested. - The vehicle speed is less than 38 MPH. The cooling fan relay will be commanded ON regardless of vehicle speed when the following conditions are met: - The engine ...2. Check the coolant temperature sensor. If the sensor is not working correctly, you have to change it, and the problem will most likely be resolved. 3. Check for a bad radiator relay and replace the bad relay with a new one to get the fan to stop running after the engine is shut OFF.Most vehicles need 25 to 35 pounds per square inch of Freon on the low side if the vehicle is running with the air conditioner on its coldest setting and fastest fan speed. The amo...You need to pressure test the system first. Then look at possible bad head gaskets, as that is a number one offender for pushing coolant out of the reservoir. Could be head gaskets but in the shop over heating is the number one offender for boiling over. Due to fans quitting working, or thermostat issues usually.2016 temp gauge not working, radiator fan runs constantly, 3.6L. All of a sudden, the temperature gauge doesn't work (stuck on "L") and the radiator fan runs on high as soon as the car is started. The fan continues to run for a few minutes after shutting off the car. The auto stop/start feature also is disabled.As of 2015, the weight of a Chevrolet Silverado 3500HD with dual rear wheels ranges between roughly 6,000 pounds and 8,000 pounds, depending on its configuration. The most prominen...Though Ive never seen my fan continue running after shut off- here in So cal on a a hot day. Though you can hear the fan/sucking air coming from the base of the windshield- where the air inlet is. 2023 Traverse LT 3.6L 15,000. 2013 Equinox 3.6L 121,000. 2003 Trailblazer 4.2L 188,000.Conditions for Running the DTC. • The ignition voltage is between 8-18 volts. • The engine speed is more than 40 RPM. • The ECM driver transitions from ON to OFF or from OFF to ON. Conditions for Setting the DTC. • P0481--The PCM detects an open circuit on the high speed cooling fan relay control circuit.However, you should be concerned if the cooling fan is still operational and getting close to 10-15 minutes. The cooling fan may keep running long after the car is shut off due to overheating or a fault with the relay, which could be caused by faulty temperature sensors, issues with the cooling fan, or problems with the ECU unit.1 post · Joined 2017. #1 · Dec 28, 2017. I have a 1998 Chevy Silverado 5.7 V8. About a month ago i noticed that my blower wasnt working in my truck. I've had issues with these before in other vehicles and tried tapping on the blower motor itself to get it to work and no such luck. Heat still comes out of the vents but with no force.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 ... coolant temp came up from 160 and the fan did not come on. Im thinking the coolant temp sensor ...If the cooling system is critically low on coolant the engine may be running very hot, that may be the reason the cooling fans operate for an extended period. 1 Like davepsinbox_157004 December 5, 2020, 11:40pmJul 9, 2022 · Have a 2005 Silverado when you turn the key off the radiator hello have a 2005 Silverado when you turn the key off the radiator fans run till batteries are dead also when the truck is running fans do not come on and truck shuts down at 210 and will not restart …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 ...A/C randomly turns off. I live in west Texas and still have need for my A/C this late in the year. It has only happened to me 2-3 times now. When I'm driving my A/C will just turn itself off even though the knob is still set to 3 or 4 blower speed. But if I park the truck, turn it off, then start it back up again it comes back on just fine.Some customers may comment that the blower motor is inoperative or continues to run after the vehicle has been shut off. Cause. These conditions may be caused by a blower motor control module failure. This failure may occur when the vehicle is operated in ambient temperature conditions of-23 °C (-10 °F) or below.Ok. Looked everywhere and can't find anything about this. My radiator fans are all out off whack (simply put). They. run from the time i turn the truck on to the time I shut it off. BUT sometimes they'll shut off for about 30 seconds to 2. minutes and kick back on. Slow then fast then back to.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.You will see two electrical plugs: one to the fan motor itself, nearer the fender, and the other just to the driver side of that plug, which goes to the motor controller. The controller module is screwed to the case with 3 screws, and is just to the passenger side of the A/C evaporator. There is a bulge in the case and the evaporator is ...Jul 2, 2023 · I have an 08 silverado, 5.3. I had to jump the truck after sitting for a while and after running for a while to charge the battery I turned the key off but the engine kept running. The dash power off, the a/c, the radio all shut off but the engine kept running. I let it run with the key off for 30 min hoping the fuel pump was off but it kept ...Ensure all battery connections are secure and clean to prevent power leakage. Examine the starter solenoid, which may be faulty if engine keeps running when ignition is turned off. Replace any damaged parts such as spark plugs, wires, coils, etc., to restore proper functioning of the engine system.Radiator fan keeps running after turning ignition off. I just bought my CRV today. 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 ...Dec 10, 2021 · 2017 2.5 Chevy Colorado was doing the samething I replaced the thermostat is still doing the samething fan stays on when engine is off ans runs full blast when truck is running and temp gauge stays at 160 .no check engine light I disconnected the positive for 30 seconds problem came back could it be the temp sensor?strange "Clicking" from pass side low dash. ok here is a strange one that started mid road trip. vehicle+ 1993 K1500 Suburban with the 350 /auto tranny/4x4 (do not think it is model suspecific) the suburban has 300990.90 miles and running great, but this last weekend we went on a 300 mile B-day road trip. after the 2/3 of the trip was ...3773 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.9 posts · Joined 2013. #29 · Dec 17, 2013. As some have mentioned, cooling fans running after the car has turned off happens when the car was in the middle or just finished a regeneration cycle of the DPF. The regen raises the temperature of the DPF to "coke" the soot in the DPF, and when its hot you can smell the heat.Chevy silverado blower fan controller fixBlower panel Silverado wont start after electric fanChevy silverado fan wont shut off. Check Details. How to fix a noisy blower fan. 2016 chevy silverado fan wont shut offGmc sierra fan keeps running How to remove the fan on a 1999 silverado 2500Chevrolet radiator fans not working.. Check Details. Check ...1995 Chevy 2500 cranks but won't start. I'm trying to help my nephew with his 1995 Chevy 2500. What I know so far: Truck has spark to the spark plugs; pulled the fuel pump relay it has power from 87 to ground. Test light lights up from 87 to 30 but I can't hear the pump running.Hey ladies and gents, I have a 2016 camaro ss1 also. I have been having the same issue to where my fan stays running even after I turn it off. At first I replaced the sensor and was fine for like 4 months then the issue came up again. ... KEEP FUEL TANK HALF OR ABOVE FILLED. 2019 LT Camaro 3.6L V6. Same as ya'll, Engine Temp dashboard gauge ...This can cause the fan to seem like it is running too much as once it turns off, it is only a brief time before the pressure is back up to 300 again, and the fan is once again commanded on. If your fan is kicking in at way less than 300, the pressure switch is faulty. If the pressure rises way too quickly, the condenser may not be cooling properly.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 counting ...Test drive this New Gray 2024 Chevrolet Silverado 1500 3.0L 3GCUDHE8XRG378497 for sale near San Antonio ... Vehicle just arrived off the truck. Hurry while it lasts. ... Separate buttons on the climate control panel allow you to choose from 3 levels of fan circulation Individually controlled Cooling feature includes both seatbacks and cushions ...🔧 Experiencing the frustrating issue of your radiator fan refusing to turn off in your 2014-2019 Chevy Silverado or GMC Sierra? You're not alone! In this de...2017 2.5 Chevy Colorado was doing the samething I replaced the thermostat is still doing the samething fan stays on when engine is off ans runs full blast when truck is running and temp gauge stays at 160 .no check engine light I disconnected the positive for 30 seconds problem came back could it be the temp sensor?Alex S. December 23, 2020. The most common problem with the cooling fan in a 2014 Chevy Silverado is that the fan stops working. When this happens Your radiator may not get adequate airflow and that can lead to higher than expected temperatures in it. That decreases the overall cooling capacity of the system and that can lead to Your engine ...Oct 14, 2020 · 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.Air conditioning intermittently stops working. I have a 2000 GMC Sierra, 5.3L V8 with 200K miles and the air just started to act up. When I start out in the morning it works fine, but once I start and stop at lights, etc it quits working. If I stop and turn off the engine it starts working again. When driving highway speeds it seems to never quit.May have been due to a DPF regeneration in progress when you shut off the truck. SOLD: 2017 Ram 1500 Outdoorsman 4X4 Crew Cab. Delmonico Red Pearl with an Ecodiesel V6, 6'4" box, 3.92 axle and anti-spin. Aftermarket options: Undercover SE tonneau cover, Aries 6" SS steps, Dee Zee rubber bed mat, 3M, WeatherTech all-weather mats.The A/C fan continues to run after the ignition is turned off. This has occurred on at least 10 occasions, the most recent yesterday. This occurs whether the single key only is left in or removed from the ignition. It is a concern because of the drain on the battery.