2019-2025 Acura RDX Fuel Pump: Recall, Failure Symptoms, and Replacement Guide
This guide covers the critical fuel pump recall affecting the third-generation Acura RDX, common symptoms of failure, and how to select a reliable used replacement part.
- A major safety recall affects many 2019-2020 RDX models for a fuel pump that can fail and cause the engine to stall while driving.
- Key symptoms of failure include engine stalling, difficulty starting, hesitation under acceleration, and a distinct whining noise from the fuel tank area.
- Replacement is moderately difficult (3 out of 5) and requires accessing the pump through a panel under the rear seat.
- When buying a used part, always verify the part number and inspect the electrical connector for any signs of heat damage or corrosion.
Known Issues: Widespread Fuel Pump Recall
The most significant issue affecting the 2019-2020 Acura RDX is a widespread safety recall concerning the low-pressure fuel pump. The recall, identified by NHTSA Campaign Number 21V215000 🎬 Watch this video for a detailed breakdown of the recall. (an expansion of a previous recall, 20V-314), addresses a defect in the fuel pump motor.
The core problem is that the impeller, a spinning component inside the pump, can absorb too much fuel, causing it to swell and deform over time. This deformation can cause the fuel pump to seize and stop working. If this happens, the engine may not start, or more dangerously, it could stall while driving, which significantly increases the risk of a crash.
Acura dealers will replace the fuel pump motor free of charge on affected vehicles. You can check if a specific vehicle is part of the recall by entering its Vehicle Identification Number (VIN) on Acura's recall website or the NHTSA website.
Symptoms of a Failing Fuel Pump
Beyond the specific recall issue, any fuel pump can wear out over time. Here are the most common signs that your RDX's fuel pump may be failing:
- Engine Stalling: The engine may stall unexpectedly, especially when it's hot or under load. This is a critical safety issue if it happens in traffic.
- Difficulty Starting: The engine may take longer than usual to start, or it may not start at all. This happens because the weak pump can't build enough initial pressure in the fuel lines.
- Sputtering or Hesitation: The vehicle may sputter, hesitate, or surge during acceleration as the pump struggles to deliver a consistent flow of fuel. This is often more noticeable when climbing hills or towing.
- Whining Noise from the Fuel Tank: A loud, high-pitched whining or humming sound coming from the rear seat area is a classic sign of a failing fuel pump motor.
- Check Engine Light: A failing fuel pump can trigger a Check Engine Light. A common trouble code associated with this issue is P0087, which indicates "Fuel Rail Pressure Too Low". 🎬 See a visual guide on common failing fuel pump symptoms.
- Loss of Power: The vehicle may feel sluggish and lack its usual power, especially at higher speeds or under heavy acceleration.
Buying a Used Fuel Pump: What to Check
When purchasing a used OEM fuel pump for your RDX, careful inspection is key. Given the recall, opting for a tested, recycled OEM part can be a reliable and cost-effective alternative to a new part, especially when compared to cheap, unproven aftermarket options.
- Verify Part Numbers: Ensure the part number matches your vehicle's requirements. The primary part numbers for this generation are 17045-TJB-A02, 17045-TJB-A03, and the latest superseding number, 17045-TJB-A04.
- Check the Donor Vehicle's History: If possible, find out the mileage of the vehicle the pump came from. A pump from a lower-mileage vehicle is always preferable. Inquire if the donor vehicle's VIN was part of the fuel pump recall and if the replacement was performed.
- Inspect the Electrical Connector: Look closely at the electrical connector on top of the pump assembly. There should be no signs of melting, charring, or corrosion on the pins. Damaged pins indicate a potential electrical issue that could have stressed the pump.
- Examine the Plastic Housing: Check the entire plastic module for any cracks or damage. The housing can become brittle over time, and any cracks could lead to fuel leaks.
- Look at the Fuel Strainer: The strainer (or 'sock') at the bottom of the pump should be relatively clean. An extremely dirty or dark strainer suggests the pump was operating in a tank with a lot of sediment, which can shorten its life.
Pro Tip: A used OEM pump is almost always a better choice than a new, non-brand aftermarket pump. The original Acura parts are built to a higher quality standard for fitment and longevity, which is especially important for a critical component like a fuel pump.
Replacement Overview
Replacing the fuel pump on a 2019-2025 Acura RDX is a moderately difficult job. The pump is located inside the fuel tank and is accessible by removing the rear seat cushion.
Warning: Working with gasoline is extremely dangerous. This job should only be performed in a well-ventilated area, away from any open flames or sparks. Disconnect the battery before starting and have a fire extinguisher rated for gasoline fires nearby.
The basic steps involve:
- Disconnecting the negative battery terminal.
- Relieving the fuel system pressure.
- Removing the rear seat cushion to access the fuel pump cover panel.
- Removing the cover panel and disconnecting the electrical connector and fuel line.
- Using a special tool (a fuel sender wrench) to unscrew the large lock ring holding the pump in place.
- Carefully lifting the fuel pump assembly out of the tank.
- Installation is the reverse of removal. 🎬 Follow this step-by-step video to replace your RDX fuel pump. Always use a new gasket for the lock ring to ensure a proper seal.
Cost Comparison
Prices can vary based on location and supplier, but here is a general cost breakdown for the fuel pump assembly:
| Part Type | Estimated Cost |
|---|---|
| New OEM | $260 - $380 |
| New Aftermarket | $110 - $250 |
| Used OEM | $100 - $150 |
| Shop Labor | $323 - $841 |
Frequently Asked Questions
How do I know if my RDX is affected by the fuel pump recall?
You can check if a specific vehicle is included in the recall by entering its 17-digit Vehicle Identification Number (VIN) on the official Acura recall website or the National Highway Traffic Safety Administration (NHTSA) website.
Can I just replace the small fuel pump motor instead of the whole assembly?
Yes, the official Acura recall procedure involves replacing only the fuel pump motor kit (part number 06170-TJB-306) within the larger assembly. However, when buying used parts, it is often easier and more reliable to purchase the complete, tested fuel pump module.
Is it safe to drive my RDX if I suspect the fuel pump is failing?
No, it is not recommended. A failing fuel pump can cause the engine to stall at any time, including at high speeds or in heavy traffic, which is a serious safety hazard. If you experience symptoms of fuel pump failure, you should have the vehicle inspected and repaired as soon as possible.
Do I need any special tools for this job?
Yes, the most important special tool is a fuel sender wrench (Acura tool number 070AA-TLA0100) or a universal equivalent. This tool is necessary to safely remove and properly tighten the lock ring that secures the fuel pump to the tank without damaging it.
Helpful Videos
Technical Specifications
OEM Part Numbers: 17045-TJB-A02 17045-TJB-A03 17045-TJB-A04
In-tank low-pressure fuel pump module assembly.
We Have This Part in Stock
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.
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