Why are the cooling fans running on my Silverado Sierra?

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 problem. It does not do it all the time but when it does it will stop and not do it for a while.

What happens if you run a Chevy Silverado Hot?

The Chevrolet Silverado is a rugged truck that is made for a tough workload. Coolant system failure can eventually cause major engine damage as running the truck hot can lead to head gasket failure or loss of power eventually causing the motor to stop running.

Where is the coolant cap on a Silverado?

Open the hood to access the engine compartment. Locate the radiator in front of the engine compartment. Twist the radiator cap counterclockwise to remove it from the radiator. Once the cap is off, check the coolant level. The coolant should be visible by looking down in the radiator.

What are the symptoms of a bad coolant temperature sensor?

Hence, it is advised to have your car inspected right away to avoid any serious problems. Here is a more detailed list of the common symptoms of a bad coolant temperature sensor. One of the first symptoms you will notice is that the check engine light will activate.

Why is my engine temp not working on my Silverado?

I have a 2014 Silverado Z-71. One day I noticed the cooling fans staying on longer after engine shut off, thought nothing of it. Then one day the check engine light was on so I had the codes ran and it said it was either the thermostat or the temp sensor, but then the light went off and all was good.

Why is the radiator fan not working on my Chevy Silverado?

If your Silverado 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.

How can I tell if my Silverado is overheating?

Locate the radiator in front of the engine compartment. Twist the radiator cap counterclockwise to remove it from the radiator. Once the cap is off, check the coolant level. The coolant should be visible by looking down in the radiator. If you do not see any coolant, then you will want to test for leaks.

Why is the radiator not working on my Chevy Silverado?

If the radiator fan is not working, it’s a serious problem. Just because the radiator fan is not on does not mean that it is not working. They are designed to only run when needed. If your Silverado is running hot, and the fan is not running we’ve laid out the most common causes of this issue below.

How can I tell if my Chevy Aveo radiator fan is bad?

You can test the voltage going from the fan relay to the fan itself. If it is getting 12+ volts, the fan should be coming on. But if it’s not, which means the fan has gone bad. This video from Ratchets and Wrenches is a phenomenal resource on how to properly diagnose a wiring problem.

Why are my cooling fans running on high?

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.

When does electric radiator fan come on in Silverado?

2007 Silverado LT 4.8L new body style. Electric Radiator fans do not come on when engine is hot nor after turning off, will only come on when AC is turned on. Engine runs correct temp while air flows through radiator at highway speed or when AC is turned on (thus fan is on).

Why is my cooling fan not working on my Silverado?

Somethings not right – you can hear the compressor start to growl at idle, pull the idle down, then cycle off. I guess the pressure’s getting too high for the compressor and they shut down.

When does the radiator fan relay come on?

Cooling fan relay will also be commanded on regardless of vehicle speed when a DTC is set requesting cooling fan to be on, ECT is 304°F (151°C) or greater, or A/C refrigerant pressure is high. Cooling fan may also be commanded on when engine is not running, on certain conditions.

Where is the fuse box on a GMC Sierra?

GMC Sierra (from 2014) – fuse box diagram Posted on 30 December 201624 October 2018by admin GMC Sierra (from 2014) – fuse box diagram Year of production: 2014, 2015, 2016 Engine Compartment Fuse Block The engine compartment fuse block is in the engine compartment, on the driver side of the vehicle. GMC Sierra – fuse box – engine compartment

Why are the fans on my GM Truck always running?

From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. Cooling fans always running? My truck just started this morning. Remote started and the fans came on and wouldn’t stop. 30* outside so it’s not warm here.

What’s the water temp on a Silverado Sierra?

Fans default on and ECT gauge defaults cold. Replaced water pump and coolant. They referenced a code P0128. Bill came to over $700. Seems to have fixed the issue. Previously I noticed temp settled around 190 degrees, and climb to a little over 200 degrees at a long red light on a hot January day. Now temp is a solid 210 degrees, no fluctuations.

When do the Chevy Silverado low speed fans shut off?

• 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.

How do you test a Chevy Silverado cooling fan?

A quick test of the cooling fan system is turn the key to on and pull the connector off the engine coolant temperature senor on the intake, the fans will turn on by default. You can’t post conmments that contain an email address. Can I use the belt for the aveo5 that has no A.C. as a bypass to not have to buy a New A.C.?

When do the Silverado Z71 cooling fans shut off?

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.

Why are the fans not coming on in my truck?

With my scanner hooked to the truck, the engine temperature will go up to 220F and fans will not come on. After reading several forums on the issue, I understand that there are two wires that are “grounded” in the PCM to make the fans cut on. They are a GN wire in Connector 1, Pin 42 AND a Blue wire Connector 2, Pin 33 of the PCM.

Where is the owner manual for a 2011 GMC Sierra?

GMC Sierra Owner Manual – 2011 Black plate (4,1) iv Introduction Using this Manual To quickly locate information about the vehicle, use the Index in the back of the manual. It is an alphabetical list of what is in the manual and the page number where it can be found. Danger, Warnings, and Cautions

Why do the radiator fans on my Chevy truck stay on?

After i parked and turned the truck of the fans still stayed on. So i started it back on for 20 sec. turned it off and the fans turned off. Another thing, i turned my ac to cold, but for some reason it doesn’t get cold while the temp is at 160* and the fans are running non stop.

Why are the cooling fans running on my Silverado Sierra?