Main Relay Replacement at your home or office.

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$87.01 - $210.37

Price range for all vehicles


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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.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2010 Mazda CX-7 $95 $15.21 $79.99 22% $122.71
2005 GMC Envoy XUV $88 $8.17 $79.99 23% $115.67
2015 Hyundai Azera $109 $29.37 $79.99 20% $136.87
2010 Lexus LS460 $116 $36.45 $79.99 19% $143.95
2008 Cadillac XLR $120 $39.80 $79.99 18% $147.30
2009 Porsche Cayenne $111 $31.26 $79.99 19% $138.76

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


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.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Recent Main Relay (Computer/Fuel System) Replacement reviews

Excellent Rating

(36)

Rating Summary
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David

15 years of experience
625 reviews
David
15 years of experience
Oldsmobile Cutlass Ciera - Fuel Pump Relay - Sacramento, California
Quick repair, convenient service...thanks again
Land Rover Range Rover - Fuel Pump Relay - Vallejo, California
David was very patient

Cornelius

17 years of experience
101 reviews
Cornelius
17 years of experience
Lincoln Navigator - Fuel Pump Relay - Jonesboro, Georgia
Cornelius did a great job. show me what the problem was. He was very professional and courteous and gave great customer service. He cleaned up his area very well and left it as he found it.

Khoa

19 years of experience
402 reviews
Khoa
19 years of experience
Ford Ranger - Fuel Pump Relay - Sacramento, California
Excellent job! Top notch very professional really knew what he was doing! Very friendly, on time and did a great job! Thanks again for your excellent customer service!

Matthew

32 years of experience
934 reviews
Matthew
32 years of experience
Acura RL - Fuel Pump Relay Replacement - Hampton, Virginia
Great guy, very knowledgeable, polite, courteous and professional. How do I retrieve the free movie tickets?

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