Main Relay Replacement at your home or office.

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Average rating from customers who
received a Main Relay (Computer/Fuel System) Replacement.
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$77.01 - $198.97

Price range for all vehicles


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

Average rating from customers who
received a Main Relay (Computer/Fuel System) Replacement.
Learn More


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
2013 Mitsubishi Lancer $112 $42.47 $70.00 25% $149.97
2012 Volkswagen Beetle $95 $25.03 $70.00 28% $132.53
2014 Aston Martin Rapide $109 $38.80 $70.00 25% $146.30
2009 BMW 528i $112 $42.18 $70.00 25% $149.68
2006 Mercedes-Benz ML350 $97 $26.58 $70.00 27% $134.08
2014 Jaguar XF $158 $88.50 $70.00 19% $196.00

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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

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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

4.5/5

Number of Reviews

25

Rating Summary
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Tyrone

8 years of experience
402 reviews
Tyrone
8 years of experience
great service very professional
2006 CHRYSLER 300 - FUEL PUMP RELAY - CLINTON, MARYLAND

David

13 years of experience
339 reviews
David
13 years of experience
Quick repair, convenient service...thanks again
1993 OLDSMOBILE CUTLASS CIERA - FUEL PUMP RELAY - SACRAMENTO, CALIFORNIA

Alex

19 years of experience
94 reviews
Alex
19 years of experience
He wrote notes to communicate me, bec I am deaf. He inspected good and found some to let me know. I appreciated his time without hurry.
1990 HONDA ACCORD - FUEL PUMP RELAY - TEMPE, ARIZONA

Tien

20 years of experience
746 reviews
Tien
20 years of experience
Tien was on time, the only reason I gave 3 stars is because of my unique problem. It was hard to diagnose verbally and I won't know it the work done will fix the problem because of the nature of the problem. In time I will know. Tien did the job well based on the info provided.
1998 SAAB 900 - FUEL PUMP RELAY - HAYWARD, CALIFORNIA

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