Best Prices for Main Relay (Computer/Fuel System) Replacement

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How much does Main Relay (Computer/Fuel System) Replacement cost?

It depends on the type of car you drive and the auto repair shop you go to. Our mechanics are mobile, which means they don't have the overhead that repair shops have. They provide you convenience by coming to your home or office.

Main Relay (Computer/Fuel System) Replacement pricing for various cars

CarsEstimateParts CostLabor CostSavingsAverage Dealer Price
2013 Volkswagen Beetle$171$25.03$145.99-29%$132.53
2015 Ram ProMaster 1500$178$31.89$145.99-27%$139.39
2013 Chevrolet Express 3500$186$39.80$145.99-26%$147.30
2013 BMW X5$199$53.41$145.99-23%$160.91
2009 Mercedes-Benz C300$239$93.15$145.99-19%$200.65
2014 Porsche Boxster$174$27.93$145.99-28%$135.43

Main Relay (Computer/Fuel System) Replacement Service

What is the Main Relay (Computer/Fuel System) all about?

Relays play a significant role in controlling the various electronic components of your vehicle, and there are several that can be termed a “main” relay. However, when you speak of the vehicle’s main relay, you’re referring to the one that controls the computer and the fuel system. It’s the first thing to engage when you turn the ignition switch. Without an operable main relay, your car won’t run. On most makes and models, the main relay will be located in one of the underhood fuse boxes, but this varies from one manufacturer to another.

Keep in mind:

  • The main relay is absolutely essential to vehicle operation.
  • The relay is not inspected during routine maintenance and is designed to last for many years before needing replacement.
  • Many other problems have similar symptoms, so professional diagnosis is important.

How it's done:

  • The vehicle relay main panel is opened
  • The defective main relay is removed
  • The new main relay is installed
  • The vehicle main relay panel is closed
  • The vehicle is started and checked for operation

Our recommendation:

Without an operational main relay, your car will not operate. However, electrical problems can be complex, and the failure of the main relay could possibly be a symptom of an underlying problem. It’s important that our expert mechanics diagnose both the condition of the relay and any inherent causes that contributed to the relay’s premature failure.

What common symptoms indicate you may need to replace the Main Relay (Computer/Fuel System)?

  • Fuel pump does not engage when ignition is turned to “on”
  • Vehicle will not start
  • Vehicle will not start when engine is hot

How important is this service?

There are few components as crucial to vehicle operation as your main relay. It operates both the car’s computer and the fuel system. If you experience any problems similar to the symptoms above, we recommend having your vehicle diagnosed immediately.


Recent Main Relay (Computer/Fuel System) Replacement reviews

Excellent Rating

(49)

Rating Summary
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Rohon

49 years of experience
147 reviews
Rohon
49 years of experience
Ford Mustang V8-4.6L - Fuel Pump Relay - West Palm Beach, Florida
Rohan is fantastic, he fixed my Mustang after months of pulling my hair out trying to fix it myself.

Salim

31 years of experience
168 reviews
Salim
31 years of experience
Ford Expedition V8-5.4L - Fuel Pump Relay - Hayward, California
Salim was great and professional he was on time and he does great work I would recommend him to my friends and family.

Christopher

28 years of experience
364 reviews
Christopher
28 years of experience
Jeep Wrangler V6-3.8L - Fuel Pump Relay - Worcester, Massachusetts
One of the most knowledgeable mechanics out there. Smart and determined. He will find the problem and fix it. Extremely knowledgable amd professional A+++

Theodore

17 years of experience
1794 reviews
Theodore
17 years of experience
Acura Integra L4-1.8L - Fuel Pump Relay - Bothell, Washington
Theodore was customer friendly and efficient in servicing my car. He suggested additional services for future.

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