Main Relay Replacement at your home or office.

Our certified mechanics come to you · Backed by our 12-month, 12,000-mile warranty · Get a fair and transparent estimate upfront

GET A QUOTE Backed by 12-month, 12,000-mile guarantee
Red-stars EXCELLENT RATING ON

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
2004 GMC Savana 2500 $79 $8.75 $70.00 32% $116.25
2014 Honda CR-Z $147 $76.86 $70.00 20% $184.36
2007 Ford Freestyle $97 $26.58 $70.00 27% $134.08
2006 Mercedes-Benz C280 $131 $60.94 $70.00 22% $168.44
2012 BMW 535i GT xDrive $111 $40.65 $70.00 25% $148.15
2011 Porsche Panamera $85 $15.28 $70.00 30% $122.78
GET A QUOTE FOR YOUR CAR

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 Main Relay (Computer/Fuel System) Replacement service at your home or office.

GET A QUOTE FOR YOUR CAR
Backed by 12-month, 12,000-mile guarantee

Recent Main Relay (Computer/Fuel System) Replacement reviews

Excellent Rating


YourMechanic Main Relay (Computer/Fuel System) Replacement Service

Average Rating

4.4/5

Number of Reviews

23

Rating Summary
20
1
1
0
1
20
1
1
0
1

Kenneth

17 years of experience
374 reviews
Kenneth
17 years of experience
Amazing jo b and honest. Worked super clean and very professional. Will definitely use him again.
2009 VOLKSWAGEN CC - FUEL PUMP RELAY - WHITTIER, CALIFORNIA

Graham

14 years of experience
56 reviews
Graham
14 years of experience
It was actually a delightful experience with Graham. He was very prompt, polite and knew exactly how to fix the fuel pump relay. He's an industrious young man who we highly recommend!
1993 ACURA INTEGRA - FUEL PUMP RELAY - GRAYSLAKE, ILLINOIS

Steven

18 years of experience
198 reviews
Steven
18 years of experience
Showed up early. Quickly found the problem and got it solved. Great experience all the way around!
2002 FORD F-150 - FUEL PUMP RELAY - GRAPEVINE, TEXAS

James

27 years of experience
331 reviews
James
27 years of experience
Arrived on time, worked fast, even taught me a few tricks about the car, showed me what other future problems might be.
1999 HONDA ACCORD - FUEL PUMP RELAY - OVIEDO, FLORIDA

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.

1-800-701-6230 · hi@yourmechanic.com