Infiniti M45 Fuel Pump Relay Replacement at your home or office.

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Fuel Pump Relay Replacement Service

How much does a Fuel Pump Relay Replacement cost?

On average, the cost for a Infiniti M45 Fuel Pump Relay Replacement is $108 with $13 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2004 Infiniti M45V8-4.5LService typeFuel Pump Relay ReplacementEstimate$141.55Shop/Dealer Price$165.69 - $198.74
2009 Infiniti M45V8-4.5LService typeFuel Pump Relay ReplacementEstimate$128.59Shop/Dealer Price$154.52 - $192.87
2006 Infiniti M45V8-4.5LService typeFuel Pump Relay ReplacementEstimate$128.59Shop/Dealer Price$154.52 - $192.87
2008 Infiniti M45V8-4.5LService typeFuel Pump Relay ReplacementEstimate$128.59Shop/Dealer Price$154.48 - $192.80
2010 Infiniti M45V8-4.5LService typeFuel Pump Relay ReplacementEstimate$128.59Shop/Dealer Price$154.55 - $192.92
2007 Infiniti M45V8-4.5LService typeFuel Pump Relay ReplacementEstimate$128.59Shop/Dealer Price$154.52 - $192.87
2003 Infiniti M45V8-4.5LService typeFuel Pump Relay ReplacementEstimate$147.95Shop/Dealer Price$177.23 - $226.17
Show example Infiniti M45 Fuel Pump Relay Replacement prices

What is the Fuel Pump Relay all about?

Every time you turn on the ignition of your car, you activate the fuel pump relay. This device sends an electric current to the fuel pump. Upon receiving this current, the fuel pump sends gasoline to the engine and the car starts running. While the fuel pump is active as long as the car engine is running, the fuel pump relay works only at startup and when you turn off the ignition. As long as the car is running, the fuel pump runs on the power it receives from the oil pressure sending unit or any other such power source.

The fuel pump relay is also called the relay switch and its functions are similar to those of the automotive fuse. Controlled by the engine control module, the fuel pump relay controls the current sent to the fuel pump. This device is a black plastic component, set in a small box with a wiring harness attached to its underside. Its sprockets attach to the engine assembly. Depending on the make of the car, you will find the fuel pump relay under the hood or under the dashboard, near the steering wheel of the car.

Keep in mind:

  • Fuel relay pumps can oxidize or rust and need to be changed more frequently that the fuel pump.
  • Typically, the coil and contact points of the fuel pump relay show damage.

How it's done:

  • The vehicle hood is raised and supported
  • The defective fuel pump relay is removed
  • The new fuel pump relay is installed
  • The fuel pressure is tested and codes cleared with a scanner or gauge
  • The vehicle hood is closed and road tested for proper operation

Our recommendation:

The fuel pump of the car is an expensive device that functions well with the optimal amount of current. If it receives excessive power, the wiring system around the pump overheats, and the fuel pump could get damaged or fail completely. The fuel pump relay has a limited lifetime so you should have our expert mechanics check it every time your brakes are changed.

What common symptoms indicate you may need to replace the Fuel Pump Relay?

  • Engine cranks but does not start at all.
  • Engine functions irregularly and does not start right away
  • Car slows down without your braking
  • Car comes to a halt after running only for a short distance

How important is this service?

If the fuel pump relay does not work properly, it will not activate the fuel pump and you car will not start. Further, a malfunctioning fuel pump relay could conduct too much power to the fuel pump and cause damage to or ruin it completely. This is why we recommend that you keep the fuel pump relay in perfect working order at all times.

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Meet some of our expert Infiniti mechanics

Real customer reviews from Infiniti owners like you.

Excellent Rating

(67)

Rating Summary
63
2
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2
63
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James

15 years of experience
46 reviews
James
15 years of experience
Infiniti M45 V8-4.5L - Oil Change - Hawthorne, California
James's was a very good guy... Got to my location on time., knew what he was doing also he answered all my questions and want above and beyond to make sure everything with my car was fixed and ready to go! thank you so much James's.

Timothy

48 years of experience
201 reviews
Timothy
48 years of experience
Infiniti M45 V8-4.5L - Brakes, Steering and Suspension Inspection - Dallas, Texas
He was very sweet Seems like he was honest and showed me where it needed repair

Charles

34 years of experience
342 reviews
Charles
34 years of experience
Infiniti M45 V8-4.5L - Camshaft Position Sensor - Austin, Texas
As someone who normally works on their own vehicles, I can say Charles knew his stuff. He was great all around.

Keith

27 years of experience
11 reviews
Keith
27 years of experience
Infiniti M45 V8-4.5L - Oil Pressure Light is on - Palmdale, California
Keith was great told me everything I needed to know to get my car running right

Excellent Rating

(67)

Rating Summary
63
2
0
0
2
63
2
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2
Number of Infiniti M45 services completed
737+
services done by our mechanics
TOTAL NUMBER OF EXPERT Infiniti MECHANICS
900+
experts on our platform

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