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Any help guys, my radiator fans stay on high full blast as soon as i turn the truck on and even after i shut it off. Temperature gauge stays at 160 and doesnt move at all during a 40 minute drive. A/c doesnt blow cold air either. Any suggestions? 2016 5.3 6-speed with 52k miles. This is the first mechanical issue ive had with this truck ...The most common symptoms of a bad coolant temperature sensor include poor mileage, cooling fans not coming on, engine performance issues, an overheating engine, and a check engine light on your dashboard. Here is a more detailed list of the signs of a bad or failing coolant temperature sensor to look for: 1. Check Engine Light.Radiator fans run on high, i replaced the cooling sensor, and thermostat, and it still runs on high. ... my coolant fans stay on after i turn off the engine of my 2014 ... 2015 chevy silverado 1500 runs 210-215 fans come on thermostat and engine temperature sensor was just replaced but it starts to over heat at 80mph if I let off the throttle ...I had this same problem. The Radiator would turn on first thing in the morning and stay on. I looked it up and its a fail safe when the Radiator Fan Control Module is ready to be replaced. The module is no longer telling when the fan to turn off/on anymore so it just bypasses the module and the fans stay on.The sensor had failed, making the gauge read "0". As a failsafe since it has no idea what the actual coolant temp is, the PCM commands both fans on high speed and keeps the A/C off to prevent extra heat from the condenser. It also runs the fans for about five minutes after the key is turned off. Watch the first eight minutes of this veideo:Reasons for fan activation. Conditions for turning on. Failure of the coolant temperature sensor or damage of its wiring. Engine running in emergency mode. Defective relay of fan switching. Short circuit of wires to “ground”. Engine running, the fan may turn off if contact is made/missed. ECU malfunction.RADIATOR FAN STAYS ON ALL THE TIME CHEVY, CHEVROLET, GMC, BUICK, CADILLAC Car Scanner: https://amzn.to/2G5lxTi Check out our Amazon Store for the tools …Service Engine Soon – Other than the heater not working, the only other symptom of P0128 is typically the service engine soon light itself. Slight Decrease in fuel economy – The P0128 code may also lead to a slight decrease in fuel economy. This is because your Suburban’s engine is running at a cooler temperature than it should be.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 ...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 I also noticed the temp gauge stayed at 160 the whole drive (basically didn't move). The fan noise is coming form the front end of the truck.May 8, 2014 · Radiator fan won't turn off. So I start my '14 Sierra this morning and it sounds louder than usual. The fan seems like it's loud and doesn't shut off. Last night I had to take out and unclip my air filter in order to get to my headlight assembly. I put everything back as I did the previous night when I did the same thing. Some of the most common symptoms of a bad thermostat are no heat, a spiked temp gauge, a blown head gasket, and more. A thermostat failure can only happen in two ways. The thermostat stays in the closed position and won’t let coolant through when the engine reaches operating temperature. Or, the thermostat will stay open, and the coolant will ...TV show fans have all sorts of theories about their favorite shows. See 10 creepy TV show fan theories to what wild tales are out there. Advertisement Most TV shows are chock-full ...

231 posts · Joined 2015. #1 · Oct 3, 2015. I know of 2.0 tunes that cause this after searching here for this issue but I didn't tune this 3.8 and the issue just now started. The running engine temp is normal at 1 bar below half yet when the engine is off the fan stays on even after the engine temp is down to 1 bar on the temp gauge an hour later.Sep 13, 2019 · Once the temp gets so hot, the ECU commands the radiator fan to come on. If your Suburban has a bad engine temp sensor the radiator fan won’t know to come on, because the ECU won’t know how hot the engine is. You’ll need to locate and test the engine temp sensor. Depending on the model year and engine, the location varies. 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 …Old problem and requires a 6 our coldsoak to turn the fan off when you start. Block heater is not supposed to be used above -18c but you are well below that. Look up "3.0 fan runs" on GMTechlink.com for info- you will probably have to tell your dealer how to fix it. 1957 GMC 1 ton flatbed with 22K original miles.

Oct 25, 2019 · In the absence of a scanner anytime component that is connected to a control module is not operating properly, a hard reset is always worth a shot. Hard Reset – Disconnect both battery cables. Touch the cable ends. together (away from the battery) for 15 seconds. Nov 6, 2022 · 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. Day later I started the car, 85° outside, noticed the cooling fan started running, once I got into yukon I tried the a/c and the light blinked 3 times and shut off, same happened with the recirc. I tried the other controls and the only selection that works is Auto. The defrosters work fine but can select anything besides Auto.…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. The Furnace Is Making Noise. Suburban furnaces w. Possible cause: Are you a sports enthusiast who wants to keep up with the latest live sports .