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

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

4.6/5

Number of Reviews

20

Rating Summary
17
1
1
0
1
17
1
1
0
1

Graham

14 years of experience
24 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

Matthew

9 years of experience
141 reviews
Matthew
9 years of experience
This is my first time using 'Your mechanic' and Matthew arrived on time and even waited on me because I was running late coming back home but he was very patient friendly, and professional. He helped me out with my car and even gave me some extra help at no charge. I will be using this service again because of my experience with Matthew. 
2000 LEXUS RX300 - FUEL PUMP RELAY - INDIANAPOLIS, INDIANA

Danny

8 years of experience
261 reviews
Danny
8 years of experience
Well we did all we could do.. brought juice to area..fuel pump failed to respond.. rescheduled.. appointment with Danny..for Tuesday..to replace fuel pump..
2004 VOLKSWAGEN JETTA - FUEL PUMP RELAY REPLACEMENT - WOODBURY, NEW JERSEY

James

27 years of experience
270 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