A Guide to the 2004-2013 INFINITI QX56 Fuel Pump Module Assembly
Keep your QX56 running strong by understanding the signs of a failing fuel pump and how to choose the right replacement.
- A common failure point is the fuel level sending unit, which causes an inaccurate gas gauge; this was subject to a recall for 2005-2009 models.
- Replacement is easier than on many other SUVs because the pump is accessible under the second-row seats, avoiding the need to drop the fuel tank.
- Choosing a quality aftermarket brand like Delphi can provide OEM-level reliability without the dealership price.
- Due to the integrated nature of the part, it is highly recommended to replace the entire module assembly rather than just the pump motor.
Symptoms of a Failing Fuel Pump in Your QX56
A failing fuel pump doesn't always quit suddenly. It often gives warning signs. If you experience any of these issues with your 2004-2013 QX56, your fuel pump module could be the culprit.
- Engine Sputtering or Hesitation: Especially under acceleration, if the engine feels like it's stumbling or losing power, it may be starved for fuel.
- Difficulty Starting or Long Crank Times: The pump may be weak and take longer than usual to build the necessary fuel pressure to start the engine.
- No-Start Condition: The most severe symptom is when the engine cranks but won't start at all. This can happen if the pump has completely failed.
- Inaccurate or Erratic Fuel Gauge: The fuel level sending unit is part of the module. If your gas gauge jumps around or reads empty on a full tank, the sender has likely failed. This was a very common issue on these vehicles.
- Loud Whining or Humming Noise: A loud whine coming from the rear of the vehicle, near the fuel tank, can be a sign of a struggling fuel pump motor. 🎬 Watch: A visual guide to common bad fuel pump symptoms
Known Issue: Fuel Gauge Inaccuracy Recall
Nissan issued a recall for certain 2005-2009 model year INFINITI QX56 vehicles because the fuel gauge could inaccurately show about a quarter tank of fuel when the tank was actually empty. This was due to a problem with the fuel level sending unit inside the module. Even if your vehicle is outside this range, sender failure is a common problem point for the entire 2004-2013 generation.
Choosing the Right Aftermarket Fuel Pump Module
When replacing the fuel pump module in your QX56, you have several options. The quality of aftermarket parts can vary, but choosing a reputable brand can offer OEM-level performance without the high dealership price tag. Here's a breakdown of the available brands.
Tier 1: OEM Quality
- Delphi: Delphi is a well-regarded brand and was an Original Equipment (OE) supplier for many manufacturers, including General Motors. Choosing a Delphi pump often means you are getting a part built to the same standards as the factory original. They are known for reliable, factory-like performance and precise fitment.
Tier 2: Reputable Aftermarket
- Carter: Carter is a long-standing name in fuel systems, known for producing quality fuel delivery solutions. They offer a good balance of performance and value, with many users reporting quiet operation and reliability.
- GMB: GMB produces parts designed to meet OE form, fit, and function. Their fuel pump assemblies use quality materials like high-grade plastics and aluminum motor casings to ensure durability and proper heat dissipation.
Tier 3: Value-Oriented Options
- AutoBest: Often praised for being a budget-friendly option that is easy to install. They focus on durability and often come with a good warranty, making them a solid choice for those on a tighter budget.
- US Motor Works: This brand offers drop-in replacement modules and focuses on using quality materials like stainless steel components and palladium silver fuel sensors for corrosion resistance. User reviews are mixed, with some reporting early failures, so it's a budget-conscious choice.
A Note on Holley
Holley is a famous brand in the performance automotive world. While they make high-quality fuel pumps, they are typically universal or performance-oriented pumps, not direct, drop-in replacements for a stock QX56. A Holley pump would likely require modifications to your vehicle's wiring and fuel lines and is not recommended unless you are building a high-performance, modified vehicle.
Cost of Replacing an INFINITI QX56 Fuel Pump
The cost can vary significantly based on the parts you choose and whether you do the work yourself or hire a professional mechanic.
| Item | Estimated Cost |
|---|---|
| New OEM Fuel Pump Module | $440 - $700 |
| New Aftermarket Fuel Pump Module | $196 - $835 |
| Shop Labor | $176 - $266 |
| Total Professional Replacement | ~$750 - $1,600+ |
Frequently Asked Questions (FAQ)
Is replacing the fuel pump a DIY job?
For the 2004-2013 QX56, the fuel pump is accessible through a panel under the second-row seats, which makes it much easier than on vehicles where you must drop the entire fuel tank. 🎬 See this easy walkthrough for replacing the pump yourself A skilled DIYer can complete this job in a few hours. However, you are working with gasoline, which is highly flammable. If you are not comfortable with the risks and procedures, it is best to leave this job to a professional.
Is there a recall on the fuel pump for my QX56?
There was a recall for the fuel level sending unit on 2005-2009 models, which caused an inaccurate fuel gauge. There were also recalls for a loosely tightened fuel pressure sensor on some 2011-2013 models, which could cause a fuel leak, but this did not involve the pump module itself. Always check with an INFINITI dealer or the NHTSA website with your VIN to see if any open recalls apply to your specific vehicle.
Can I just replace the pump motor instead of the whole assembly?
While it is sometimes possible to buy just the pump motor, it is not recommended. The fuel level sender and the integrated fuel strainer are common failure points. Replacing the entire module ensures all critical components are new and prevents you from having to do the job again if another part of the old assembly fails.
Why is my new fuel pump so loud?
A new fuel pump should be relatively quiet. A loud whining noise can indicate a defective pump or an installation issue. A clogged fuel filter or strainer can starve the pump, causing it to work harder and become noisy. Always ensure the rest of your fuel system is clean when installing a new pump.
Helpful Videos
Technical Specifications
OEM Part Numbers: 17040-7S000 17040-7S00A 17040-ZE00A 17040-ZE00B 17040-ZQ60C 17040-1LA0A 17040-1LA0B 17040-1LA0D 17040-3ZD0A
This is a complete in-tank fuel pump module assembly, which includes the pump, sending unit, float, and strainer. It is designed for gasoline engines and fits within the stock fuel tank. For the 2011-2013 models, a separate high-pressure fuel pump is also used for the direct injection system, but this module is the primary in-tank lift pump.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- INFINITI QX56:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Symptoms of a Failing Fuel Pump in Your QX56
- Known Issue: Fuel Gauge Inaccuracy Recall
- Choosing the Right Aftermarket Fuel Pump Module
- Tier 1: OEM Quality
- Tier 2: Reputable Aftermarket
- Tier 3: Value-Oriented Options
- A Note on Holley
- Cost of Replacing an INFINITI QX56 Fuel Pump
- Frequently Asked Questions (FAQ)
- 🎟️ Get 5% Off