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.

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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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Real customer reviews from owners like you.

10 reviews
Albert
17 years of experience
Very thorough! Called to confirm, kept me informed of his progress and detailed his work and findings. Perfect customer service from beginning to end.
2007 HYUNDAI SONATA - OIL CHANGE
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6 reviews
Jack
10 years of experience
Jack was right on time, and was very courteous and knowledgeable. I'm an old car guy, and he does know cars.
2007 FORD F-150 - ENGINE IS MISFIRING INSPECTION
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3 reviews
Tung
11 years of experience
He was very informative and professional
2006 KIA SORENTO - ADJUST IGNITION TIMING
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3 reviews
Dave
11 years of experience
Dave was great, he diagnosed the electrical issues and found 2 blown fuses that were causing a "no-start". It might sound silly to some, but if you have not checked electrical systems before, they can be a bear! Good work Dave!
1999 TOYOTA SIENNA - CAR IS NOT STARTING INSPECTION
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