2014 Silverado Fan Keeps Running: Understanding the Solutions

As an owner of a Silverado, you’ve probably noticed that sometimes your 2014 Silverado fan keeps running after you turn off your engine.

It can understandably raise concerns. You may be worried about whether something is wrong with your entire vehicle.

But fear not! In this article, we will explore the possible reasons why your fan may continue running. Later in the post, you will learn how to address the exact issues efficiently.

What Are The Common Reasons Why 2014 Silverado Fan Keeps Running

2014 silverado fan keeps running

This problem can be frustrating for car owners, as it can lead to a drained or dead battery and wear on the fan component.

But don’t worry; there are several common reasons why this might be happening. It can be a bad fan relay or a defective thermostat.

Knowing the core reasons will facilitate the repair process.

Bad Fan Relay

You happen to possess a 2014 Chevy Silverado and observe that the radiator fan persists in running.

The first thing you should check is your fan relay. A defective fan relay may be the culprit.

The role of the fan relay is to function as a switch that activates or deactivates the cooling process. It will depend on the engine temperature.

A malfunction in the relay can result in the fan continuously running without control.

One potential scenario includes a relay short. The relay may be stuck in the closed position. In this case, the relay is unable to regulate the fan’s operation, causing it to run continuously.

It can thereby cause strain on the coolant fan mechanism and the battery drain. Rectifying this problem necessitates the engine cooling fan relay replacement.

One thing to recognize is the light on the check engine. Neglecting this annoying issue may lead to overheating and consequential harm to the engine.

Broken Temperature Sensors 

The faulty temperature sensors might also be the root cause.

The purpose of normal temp sensors is to monitor the operating temperature generated by the thermostat and the coolant.

Then, it will send the necessary signal to the fan. In case these sensors are defective, they will transmit incorrect information to the engine control unit (ECU).

As a consequence, the Silverado fan keeps running when truck is off.

Damaged ECU Unit

Another underlying cause could be a faulty engine control unit (ECU). The ECU is responsible for transmitting signals to the fan.

It will instruct the fan to either stop or continue running. The Silverado cooling fan may continue running uncontrollably in case of a defective ECU.

To rectify the problem, it becomes imperative to replace the damaged ECU. Neglecting these engine issues could lead to overheating and subsequent damage to the engine.

A professional mechanic possesses the expertise to diagnose the problem and propose the necessary repairs.

Low Coolant Level

It’s possible that the cause lies in an inadequate level of coolant. The coolant in the vehicle has the vital function of reducing heat from the radiator.

It will maintain an optimal temperature within the engine. In the event of a low or bad coolant level, there is a reduced capacity for heat dissipation.

Consequently, the temperature sensor indicates the need for the engine control unit (ECU) to activate the fan to cool the engine.

Without proper control, the 2014 chevrolet silverado fan runs after car is off.

You can first check with the coolant sensor. It may be defective and incorrect. Then, have a look at the coolant temperatures and level.

In most cars and trucks, the coolant tank is located near the radiator and has a translucent plastic reservoir.

Defective High-Pressure Switch

You should also take the high-pressure switch into account. This component plays a crucial role in regulating the operation of the fan.

It is based on the needs of the air conditioner system. When the switch is defective, it can cause the fan to run continuously.

Bad Thermostat

In rare cases, you may need to check the thermostat. This part is responsible for regulating the engine temp. It will determine when the fan needs to turn on or off.

If the thermostat is faulty, it may not be able to regulate the engine’s temperature properly. That will cause the fan to run continuously.

How To Fix Your Chevy Silverado Fan That Stays On?

2015 chevy silverado 1500 fan stays on

Fortunately, there are several solutions to this problem. Based on the reason above, we can have specific repairs.

Troubleshooting electric cooling fan problems is important. It can lead to loss of battery power, increased fuel consumption, and potential damage.

Replace The Temperature Sensor

Replacing the temperature sensor is a potential solution to the problem of Chevy Silverado fans running.

If you unplug the sensors and the fan stops, it may indicate that the sensors are faulty. Now, all you need to do is the replacement.

Depending on the type of vehicle, replacing the engine temperature sensor can range from $639 to $1,063.

This price includes the equipment and labor cost. It may be costly to repair. However, replacing the temperature sensor is an effective solution.

Check The ECU Unit 

Another potential solution involves investigating the Electronic Control Unit (ECU).

The ECU assumes the crucial responsibility of establishing the temperature limit and instructions for the fan relay.

It will indicate when it should activate or deactivate. Should the ECU unit prove to be defective, a viable resolution encompasses the replacement of this component.

The average cost ranges from $500 to $2000 for an ECU unit replacement. Factors like the qualified professional involved and the specific model of the vehicle determine the price.

By examining the functionality of the ECU unit, they can rectify the matter and ensure proper component repair.

Add Fresh Coolant 

Consider the straightforward and cost-effective approach of adding new coolant. This simple solution involves evaluating the coolant levels.

Then replenish them to the appropriate level with fresh coolant liquid. It can effectively address the problem at hand.

It is vital to bear in mind that you must refrain from adding coolant while the engine remains hot. This course of action can potentially harm the engine.

Furthermore, it’s worth noting that the cost associated with adding new coolant is relatively low.

Adopting this approach can prove highly efficient in preventing the 2014 Silverado cooling fans stay on. Remember also to check the engine coolant temp sensor.

Replace The High-Pressure Switch

Replacing the high-pressure switch can also be a solution to the problem, just like what we discussed.

This switch controls the high-pressure side of the AC system. When it is faulty, it can cause the fans to keep running.

The cost of replacing the high-pressure switch can vary, but it is generally a relatively inexpensive solution.

The switch is positioned under the air box. Refer to the owner’s manual to find it. Remember to check the other reasons first before the switch.

Replace 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. However, it is generally a relatively inexpensive solution.

It’s important to replace it with a new one and clear the CEL (Check Engine Light) before turning on the engine again.

Again, that fan keeps running can be caused by the thermostat, but in an infrequent situation.


2014 silverado fans stay on

There are several reasons why the 2014 Silverado fan keeps running. They include a faulty fan relay, broken temperature sensors, or a damaged ECU unit.

The continuous electric cooling fan can be resolved by following the above instruction.

It is essential to address these common issues as they can cause wear on the fan component, like the battery cable.

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