Regan Brown
Fuel pumps are essential to the functionality of a car, delivering fuel to the engine. While they are designed to be long-lasting, they can sometimes fail. Infiniti cars are no exception to this, with some models such as the Infiniti G37 known to have two fuel pumps. Fuel pump replacement costs can vary depending on the age and model of the vehicle, with prices ranging from $350 to $894. Given the importance of fuel pumps, it is crucial for Infiniti owners to be aware of any warning signs of fuel pump failure and seek timely repairs or replacements to ensure the optimal performance of their vehicles.
| Characteristics | Values |
|---|---|
| Fuel pump replacement cost | $611 to $894 (including parts and labor) |
| Fuel pump replacement cost for 2015 Q40 | $350 (fuel pump) and $110 (sender unit) |
| Fuel pump replacement cost for 2012 Infiniti G37 | Two fuel pumps: a sub-pump assembly and a main pump assembly |
| Fuel pump replacement | Needed when the engine chokes or struggles to maintain speed |
| Fuel pump replacement | Needed when the engine fails to start |
| Fuel pump replacement | Needed when the engine floods with fuel |
| Fuel pump replacement | Needed when there is a substantial loss in performance and fuel economy |
| Fuel pump replacement | Needed when there is a fuel gauge issue |
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What You'll Learn
Fuel pump replacement cost
The fuel pump in a car is a long-lasting piece of equipment that delivers or "pumps" fuel to the engine. However, like any other part, it can sometimes fail. When this happens, the engine won't have enough fuel to keep the vehicle running, leading to severe drivability and performance issues.
The cost of replacing a fuel pump varies depending on several factors, including the make and model of the vehicle, the model year, the number of labor hours required, and whether other parts related to the fuel assembly need to be replaced.
The average cost of replacing a fuel pump is between $220 and $1,062 before taxes and labor costs. The parts cost between $95 and $854, while labor costs range from $124 to $260 per hour, depending on the state and mechanic.
For instance, the average cost of fuel pump replacement for newer models from automakers like BMW, Honda, Chevrolet, and Toyota is between $611 and $894. More expensive vehicles with complex designs can cost up to $2,500 to replace the fuel pump.
If you own an Infiniti G37 model, your car likely has two fuel pumps: a sub-pump assembly and a main pump assembly, both located at the top of the fuel tank. The sub-pump assembly assists in boosting the fuel pressure required by modern vehicle engines.
To get a more accurate estimate of the fuel pump replacement cost for your Infiniti vehicle, it is recommended to consult a local Infiniti mechanic or dealership.
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Fuel pump failure symptoms
Fuel pump failure can be a serious issue and should be addressed as soon as possible. Here are some common symptoms of a failing fuel pump in an Infiniti vehicle:
Difficulty Starting the Engine
A faulty fuel pump may cause difficulty in starting the engine. If your Infiniti car struggles to start, it could be due to the fuel pump not providing enough fuel to the engine. This can lead to a hard start condition, where the engine takes longer to turn over and ignite.
Engine Stalling
A failing fuel pump can cause the engine to stall unexpectedly. This is often due to the pump not being able to provide a consistent supply of fuel to the engine, leading to an insufficient amount of fuel relative to the amount of air. As a result, the engine may shut down while driving or idling.
Check Engine Light
A malfunctioning fuel pump can trigger the "check engine" light on your Infiniti's dashboard. This warning light indicates that there may be an issue with the fuel system or other engine components. It is recommended to have a certified mechanic diagnose the problem to identify the exact cause.
Whining or Whirring Noise from the Fuel Tank
If you hear a loud whining or whirring noise coming from the fuel tank area, it could indicate a failing fuel pump. This noise is typically louder than the usual low humming sound of a functional fuel pump and can be heard from outside the vehicle.
Engine Sputtering
Engine sputtering or surging is another sign of a failing fuel pump. This hesitation in the engine's performance is often more noticeable at high speeds, as the fuel pump struggles to keep up with the fuel demand at higher RPMs.
Engine Overheating
In some cases, a failing fuel pump can lead to engine overheating. This is because the engine has to work harder to maintain its performance when there is an insufficient fuel supply. Prolonged overheating can cause further damage to the engine and other components.
It is important to note that while these symptoms may indicate a fuel pump issue, they could also be caused by other factors. It is always recommended to consult a certified mechanic to accurately diagnose and address any vehicle issues.
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Fuel pump replacement parts
Fuel pumps are designed to be long-lasting, but like any other part, they can fail and will sometimes need to be replaced. The average national cost for a fuel pump replacement across all vehicles is roughly between $611 and $894 (including parts and labour) depending on the age of the vehicle. Your Infiniti car's fuel pump replacement cost might be more or less than that. You can get a free price estimate for an Infiniti fuel pump replacement and schedule an appointment in your area.
Some warning signs that your Infiniti's fuel pump is failing include the engine choking or struggling to maintain speed. If these symptoms are ignored for too long, the engine will eventually fail to start. Other signs include decreasing fuel mileage and unexpected engine overheating. If the pump has completely failed, the engine won't run at all.
When replacing the fuel pump, it is important to get an exact fit for your car. The new pump should have identical connections to the old one and a similar or better fuel flow rate so that the engine gets the fuel it needs.
AutoZone offers Infiniti G37 fuel pump replacement options from top-tier brands at competitive prices. They offer free next-day delivery for eligible orders or same-day pickup for online orders. Infiniti G25, G35, G37, G37X, M35, M45, Q40, and Q60 fuel pump assemblies are also available from the Infiniti Parts & Accessories Online store.
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Fuel pump relay
The fuel pump relay is an essential component of an Infiniti car's fuel system. It is an electromagnetic switch that uses low current to control a higher current circuit, specifically the fuel pump circuit. When the control module determines the appropriate conditions, it activates the relay by supplying ground to the coil inside, causing current to flow and generate a magnetic field. This magnetic field pulls the relay's contacts closed, allowing current to reach the electric fuel pump and causing it to turn on.
In an Infiniti car, the fuel pump plays a crucial role in delivering fuel to the engine. While it is designed to be durable, the fuel pump, like any other component, can malfunction or fail over time. When this happens, the car may exhibit symptoms such as an engine that chokes or struggles to maintain speed. Eventually, if left unaddressed, the engine may fail to start.
The fuel pump relay is no exception to the possibility of failure. Some common signs of a failing fuel pump relay include ignition problems, the fuel pump continuously running even when the key is out of the ignition, and an illuminated check engine light. It's important to note that other issues can present similar symptoms, so a thorough diagnosis of the vehicle is recommended before replacing any parts.
The cost of replacing a fuel pump relay is relatively low, with the part itself priced under $20. However, the labour involved in accessing and replacing the relay may contribute to the overall expense. The fuel pump relay is typically located in the power distribution box in the engine compartment, making it accessible for testing and replacement.
To test the fuel pump relay, a simple method is to temporarily swap it with another similar relay from the power distribution box, such as the air conditioning compressor relay. If the fuel pump operates with the alternate relay, it confirms the need to replace the original fuel pump relay. It is always advisable to consult a qualified mechanic or an Infiniti service centre for accurate diagnosis and repairs.
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Fuel pump issues
Signs of a Failing Fuel Pump
One of the most common signs of a failing fuel pump in an Infiniti car is difficulty starting the engine. The pump might not be providing enough fuel to the engine, causing it to struggle during the startup process. Other signs include the engine "choking" or struggling to maintain speed, and in some cases, the car may stall. If these symptoms are ignored for too long, the engine will eventually fail to start.
Another indication of a fuel pump issue is a significant drop in fuel economy. If you find yourself making more frequent trips to the gas station, it could be a sign that your fuel pump is not functioning optimally.
A malfunctioning fuel pump can also trigger the check engine light in your Infiniti car. If the light comes on, it is important to have your car diagnosed by a certified mechanic as soon as possible.
Diagnosing and Fixing Fuel Pump Issues
To diagnose a fuel pump issue, a fuel pressure test can be performed. A fuel pressure gauge can be attached to the fuel system to check if the pump is delivering fuel correctly. Additionally, the fuel pump relay, which controls the electrical power supply to the pump, can be tested with a multimeter to determine if it is the source of the problem.
If a fuel pump issue is identified, it is essential to replace the pump with a new one. A certified mechanic can help identify the right fuel pump for your Infiniti model and install it correctly. It is also recommended to replace the fuel filter and clean the fuel system to prevent dirt and debris from causing further issues.
The cost of a fuel pump replacement for an Infiniti car can vary depending on the age and model of the vehicle. The national average cost for a fuel pump replacement across all vehicles is between $611 and $894, including parts and labor. However, the cost for an Infiniti car may be higher or lower, depending on the specific model and the labor rates in your area.
While some mechanically-inclined individuals may attempt to fix a bad fuel pump themselves, it is generally recommended to seek professional assistance from a service center that specializes in Infiniti vehicles. By doing so, you can ensure that the problem is accurately diagnosed and that any necessary repairs or replacements are made correctly.
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Frequently asked questions
Yes, the 2012 Infiniti G37 has two fuel pumps. There is a sub-pump assembly and a main pump assembly, both located at the top of the fuel tank.
Some warning signs of a bad fuel pump in an Infiniti car include the engine choking or struggling to maintain speed. If ignored for too long, the engine will eventually fail to start.
If your Infiniti car's fuel pump is faulty, it is best to take it to a service center that works on Infiniti vehicles to have them diagnose and fix the problem.
The cost of replacing the fuel pump in an Infiniti car can vary depending on the age and model of the vehicle. The national average cost of replacing a fuel pump across all vehicles is between $611 and $894, including parts and labor.
