Chevrolet Silverado 3500 HD Cooling Fan Relay Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(12)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(12)

Cooling Fan Relay Replacement Service

How much does a Cooling Fan Relay Replacement cost?

On average, the cost for a Chevrolet Silverado 3500 HD Cooling Fan Relay Replacement is $114 with $9 for parts and $105 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2012 Chevrolet Silverado 3500 HDV8-6.0LService typeCooling Fan Relay ReplacementEstimate$142.95Shop/Dealer Price$155.84 - $175.61
2009 Chevrolet Silverado 3500 HDV8-6.6L Turbo DieselService typeCooling Fan Relay ReplacementEstimate$122.95Shop/Dealer Price$135.86 - $155.64
2014 Chevrolet Silverado 3500 HDV8-6.6L Turbo DieselService typeCooling Fan Relay ReplacementEstimate$148.15Shop/Dealer Price$167.36 - $206.04
2007 Chevrolet Silverado 3500 HDV8-6.0LService typeCooling Fan Relay ReplacementEstimate$122.95Shop/Dealer Price$135.84 - $155.60
2010 Chevrolet Silverado 3500 HDV8-6.0LService typeCooling Fan Relay ReplacementEstimate$122.95Shop/Dealer Price$135.87 - $155.67
2013 Chevrolet Silverado 3500 HDV8-6.0LService typeCooling Fan Relay ReplacementEstimate$148.15Shop/Dealer Price$167.36 - $206.04
2018 Chevrolet Silverado 3500 HDV8-6.6L Turbo DieselService typeCooling Fan Relay ReplacementEstimate$165.75Shop/Dealer Price$181.82 - $216.80
2015 Chevrolet Silverado 3500 HDV8-6.0LService typeCooling Fan Relay ReplacementEstimate$168.15Shop/Dealer Price$185.19 - $222.26
Show example Chevrolet Silverado 3500 HD Cooling Fan Relay Replacement prices

What is the Cooling Fan Relay all about?

Modern vehicles employ electric cooling fans to draw air into the engine compartment, through the radiator, and into the air conditioning condenser. This action removes heat from the coolant in the radiator and pulls heat from the refrigerant in the air conditioning condenser. The electric cooling fan is an electric motor with fan blades attached to it. It turns on when the powertrain control module receives a signal that the temperature of the engine or air conditioning warrants the extra flow of air.

The powertrain control module then sends a signal for the cooling fan relay to supply power to the cooling fan. The fan motor relay performs the action of a switch, sending 12-volt power to the cooling fan and initiating its operation. Once the engine temperature drops below the threshold programmed into the powertrain control module, the cooling fan turns off. In some makes and models, the cooling fan can continue running after the engine has been shut off, or it can turn on while the ignition is off. If the cooling fan relay is faulty, the cooling fan can continue to run unnecessarily, even when the ignition is off and the engine is cold. Conversely, the cooling fan may not run at all causing the engine to overheat. Since the cooling fan plays a factor in air conditioning performance, your air conditioning may not blow cold air.

Keep in mind:

  • The cooling fan can run even with the ignition off. Use caution when working in and around the cooling fan to prevent personal injury.
  • Some vehicles are equipped with two cooling fans, with separate cooling fan relays controlling each one.

How it's done:

  • The Cooling Fan Relay is verified that it needs to be replaced. The main access relay panel is open to access the cooling fan relay.

  • The defective Cooling Fan Relay is removed from the relay box by pulling straight up and out of the connection.

  • The connection is checked for any damage or overheating. The new Cooling Fan Relay is installed by lining up the pins and pressing it into the connection.

  • The Cooling Fan Relay is tested for operation by running the engine or turning on the A/C.

  • The vehicle is tested for proper operation of the Cooling Fan during a road test.

Our recommendation:

The cooling fan relay is meant to last indefinitely, but as with all electrical components, it can fail prematurely. There are no preventative measures you can take against its failure. If your engine temperature rises into the red zone, or if the cooling fan won’t quit operating, have one of our expert technicians diagnose the problem and replace the cooling fan relay if required.

What common symptoms indicate you may need to replace the Cooling Fan Relay?

  • Engine temperature runs higher than normal or overheats
  • Air-conditioning does not function
  • Cooling fan continues to run indefinitely

How important is this service?

The electric cooling fan plays an important role to control engine temperature. In a situation where the cooling fan will not turn on, overheating and engine damage can occur. If the cooling fan runs continuously, the fan motor can burn out or electrical drain can deplete your battery. If the cooling fan relay is faulty, have it replaced as soon as possible to prevent additional, expensive repairs.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Chevrolet mechanics

Real customer reviews from Chevrolet owners like you.

Excellent Rating

(12)

Rating Summary
11
0
0
0
1
11
0
0
0
1

Christopher

21 years of experience
52 reviews
Christopher
21 years of experience
Chevrolet Silverado 3500 HD V8-6.6L Turbo Diesel - Car is not starting - Dallas, Georgia
Great!

Braxton

11 years of experience
205 reviews
Braxton
11 years of experience
Chevrolet Silverado 3500 HD V8-6.6L Turbo Diesel - Oil Change - Clermont, Florida
Job well done. Because of living in my RV and not allowed to work on your vehicle, the work was very much appreciated. Very knowledgeable and did not waste any time. Thank You 

Lucas

21 years of experience
893 reviews
Lucas
21 years of experience
Chevrolet Silverado 3500 HD V8-6.0L - Grinding noise when braking - Simi Valley, California
Extremely knowledgeable, smart, and an enjoyment to be around.

Jeremy

20 years of experience
642 reviews
Jeremy
20 years of experience
Chevrolet Silverado 3500 HD V8-6.0L - Parking / Emergency Brake does not work - Boynton Beach, Florida
Had out of town guests leaving early AM, parking brake stuck. Wow, what an awesome experience with Jeremy. I would request and wait for him if possible. Knew his stuff, great personality, professional but personable. He was even earlier than quoted.

Excellent Rating

(12)

Rating Summary
11
0
0
0
1
11
0
0
0
1
Number of Chevrolet Silverado 3500 HD services completed
132+
services done by our mechanics
TOTAL NUMBER OF EXPERT Chevrolet MECHANICS
1600+
experts on our platform

Recent articles & questions

How Long Does an Accelerator Pump Last?
If If you drive a newer vehicle, you may not be familiar with accelerator pumps. New vehicles almost invariably operate on a system of fuel injection, and the accelerator pump is a component of carbureted cars. In a carbureted vehicle,...
How Long Does a Fog/Driving Light Bulb Last?
Fog Fog lights are a wonderful thing and are often underestimated. They can make driving in poor nighttime conditions much easier and safer thanks to the wide, flat beam of light they give off. They are located near the bottom...
What Does it Mean for a Car to be Reliable?
We We live in really stressful times. Domestically, there is uncertainty about our political future, and overseas can be a dangerous place to travel. In times like these, it’s natural for people to gravitate toward things that are reliable and...

Engine stalls and now won’t start up

Unfortunately an engine can really fail at any time for any number of reasons regardless of what year or how many miles it has on it, but it for sure isn’t normal. Toyota has a number of things that can...

Check Engine light came on

An illuminated Check Engine Light can be caused by many different issues on a vehicle that is 15 years old; it could be anything from a gas cap, to a bad sensor. I recommend hiring a mechanic, such as one...

Power steering warninglight on off

Hi there. Most of the time, the power steering warning light is illuminated when there is a mechanical or electrical issue that triggers an error code and then illuminates the light on the dash. In other cases, it can illuminate...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com