Main Relay Replacement at your home or office.

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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.

YourMechanic Price
$76 to $182
Labor: $70 - $80
Parts: $6 - $102
Average dealer price
$104 to $297
Average shop price
$90 to $211
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
ServiceYourMechanic PriceShop/Dealer Price
Fuel Pump Relay Replacement for 2006 Volkswagen Beetle L4-1.9L Turbo DieselYourMechanic Price$116.68Shop/Dealer Price$142.87 - $188.77
Fuel Pump Relay Replacement for 1990 Volkswagen Jetta L4-1.8LYourMechanic Price$82.71Shop/Dealer Price$100.48 - $120.95
Fuel Pump Relay Replacement for 1994 Toyota T100 L4-2.7LYourMechanic Price$133.64Shop/Dealer Price$164.09 - $222.73
Fuel Pump Relay Replacement for 2007 Lincoln Mark LT V8-5.4LYourMechanic Price$91.62Shop/Dealer Price$122.52 - $157.85
Fuel Pump Relay Replacement for 2013 Honda Crosstour V6-3.5LYourMechanic Price$105.76Shop/Dealer Price$129.23 - $166.95
Fuel Pump Relay Replacement for 2004 Ford Ranger V6-4.0LYourMechanic Price$92.03Shop/Dealer Price$112.05 - $139.46
Fuel Pump Relay Replacement for 2009 Hyundai Azera V6-3.3LYourMechanic Price$86.92Shop/Dealer Price$105.76 - $129.40
Fuel Pump Relay Replacement for 1999 Mercedes-Benz ML430 V8-4.3LYourMechanic Price$94.17Shop/Dealer Price$125.74 - $163.01
Show example Main Relay (Computer/Fuel System) Replacement prices

Main Relay (Computer/Fuel System) Replacement Service & Cost

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.

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Meet some of our expert mechanics

Real customer reviews from owners like you.

39 reviews
Anthony
20 years of experience
Anthony was on time and was very helpful getting my car back on the road. I'll definitely recommend him.
2014 TOYOTA COROLLA - CAR IS NOT STARTING INSPECTION
Want Anthony's expert advice? Ask your question now. Its free!
12 reviews
Vladimir
5 years of experience
Vlad was amazing. He was very thorough in checking the root cause of my car issue. Very knowledgeable and trustworthy. I am going to have him come back to do his recommended repairs! Definitely recommend him.
1993 HONDA ACCORD - CAR IS NOT STARTING INSPECTION
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4 reviews
Jesus
10 years of experience
Finished previous job early, so showed up early to our house. Had no issues getting the water pump switched out, and even used the battery from his truck to test the jeep since it had been sitting there awhile it needs a charge.
2005 JEEP WRANGLER - WATER PUMP REPLACEMENT
Want Jesus's expert advice? Ask your question now. Its free!
3 reviews
Misael
3 years of experience
Great experience,
1997 CHRYSLER TOWN & COUNTRY - OIL CHANGE
Want Misael's expert advice? Ask your question now. Its free!
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
ServiceYourMechanic PriceShop/Dealer Price
Fuel Pump Relay Replacement for 2006 Volkswagen Beetle L4-1.9L Turbo DieselYourMechanic Price$116.68Shop/Dealer Price$142.87 - $188.77
Fuel Pump Relay Replacement for 1990 Volkswagen Jetta L4-1.8LYourMechanic Price$82.71Shop/Dealer Price$100.48 - $120.95
Fuel Pump Relay Replacement for 1994 Toyota T100 L4-2.7LYourMechanic Price$133.64Shop/Dealer Price$164.09 - $222.73
Fuel Pump Relay Replacement for 2007 Lincoln Mark LT V8-5.4LYourMechanic Price$91.62Shop/Dealer Price$122.52 - $157.85
Fuel Pump Relay Replacement for 2013 Honda Crosstour V6-3.5LYourMechanic Price$105.76Shop/Dealer Price$129.23 - $166.95
Fuel Pump Relay Replacement for 2004 Ford Ranger V6-4.0LYourMechanic Price$92.03Shop/Dealer Price$112.05 - $139.46
Fuel Pump Relay Replacement for 2009 Hyundai Azera V6-3.3LYourMechanic Price$86.92Shop/Dealer Price$105.76 - $129.40
Fuel Pump Relay Replacement for 1999 Mercedes-Benz ML430 V8-4.3LYourMechanic Price$94.17Shop/Dealer Price$125.74 - $163.01
Show example Main Relay (Computer/Fuel System) Replacement prices

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