2004-2007 Saturn Vue Fuel Tank: Leaks, Odors, and Replacement Guide
This guide covers the common failure points, symptoms, and replacement procedure for the fuel tank on the 2004-2007 Saturn Vue.
- The most common failure is a fuel leak, often presenting as a strong gas smell before a visible leak appears. This is a major fire hazard.
- Leaks frequently come from the top of the tank, caused by a cracked fuel pump module nipple or a failed O-ring seal.
- Replacement is a difficult (4/5) job, requiring the exhaust and possibly the AWD driveshaft to be removed.
- This tank (OEM #22731231) fits all 2004-2007 Vues but only fits 2005-2006 Equinox/Torrent models with the 3.4L V6 engine.
Symptoms of a Failing Fuel Tank
A problem with the fuel tank on a 2004-2007 Saturn Vue will usually make itself known in a few distinct ways. Ignoring these symptoms can be dangerous, as a fuel leak is a significant fire hazard.
1. Strong Fuel Smell
One of the most common signs of a fuel tank issue is a persistent gasoline odor around the rear of the vehicle, especially after filling up or on hot days. This is often caused by tiny cracks in the tank itself or a failing seal on the fuel pump module. Fuel vapors escape, creating a noticeable smell and a potential safety risk.
2. Visible Fuel Leaks
If you see a puddle or drips of gasoline on the ground under the rear of your Vue, this is a critical symptom that requires immediate attention. Leaks often originate from the top of the tank, where fuel lines connect or where the fuel pump module is seated. The fuel may run down the side of the tank, making the exact source difficult to spot without lowering the tank for inspection.
3. Check Engine Light (EVAP Codes)
The fuel tank is a sealed part of the Evaporative Emission Control (EVAP) system. A crack in the tank or a bad seal will cause a pressure leak in this system, which the vehicle's computer will detect. This will trigger the Check Engine Light and store diagnostic trouble codes such as P0442 (small leak detected) or P0455 (gross leak detected). While a loose gas cap can also cause these codes, they can also point to a compromised fuel tank.
Known Issues, Recalls, and TSBs
While there are no specific recalls for the fuel tank itself on the 2004-2007 Saturn Vue, there are widespread owner reports of issues related to fuel leaks. Many complaints stem from cracks developing in the plastic fuel pump module nipples, which are part of the assembly that sits inside the tank. A crack in this area will cause fuel to leak from the top of the tank. Other reported issues include leaks from a failed fuel pump O-ring seal. There have been recalls on other Saturn models like the Ion for cracked fuel tank inlet valves, but this did not extend to the Vue.
Safety Warning: A leaking fuel tank is a severe fire hazard. If you smell gas or see a leak, do not operate the vehicle. Have it inspected and repaired immediately.
Buying a Used 2004-2007 Saturn Vue Fuel Tank
A used OEM fuel tank can be a smart and economical choice, as it was manufactured to GM's original specifications. However, careful inspection is crucial before purchasing.
What to Inspect
- Check for Cracks: Thoroughly inspect the entire surface of the plastic tank, paying close attention to the seams, corners, and areas where the mounting straps would sit. Stress cracks can be very fine and hard to see.
- Fuel Pump Mounting Surface: The large circular opening where the fuel pump module mounts is a critical sealing area. Ensure this surface is perfectly flat, clean, and free of any warping, deep scratches, or damage. A warped surface will prevent the new O-ring from sealing properly, leading to leaks.
- No Previous Repairs: Look for any signs of epoxy, sealants, or plastic welding. A tank that has been previously repaired is not reliable and should be avoided.
- Included Components: A used fuel tank is typically sold as a bare tank. It will not include the fuel pump, fuel level sending unit, or the large lock ring that holds the pump in place. You will need to transfer these parts from your old tank.
Compatibility
The fuel tank with OEM part number 22731231 fits all models of the 2004-2007 Saturn Vue, including Front-Wheel Drive (FWD) and All-Wheel Drive (AWD), and all available engines (2.2L, 2.4L, 3.5L). This same tank is also used in the 2005-2006 Chevrolet Equinox and Pontiac Torrent, but only for models equipped with the 3.4L V6 engine.
Replacement Overview
Replacing the fuel tank on a Saturn Vue is a difficult and time-consuming job best suited for an experienced DIY mechanic or a professional shop.
- Difficulty: 4 out of 5
- Key Steps: The process involves safely draining the fuel, raising the vehicle, disconnecting the exhaust hangers to let the exhaust drop, and on AWD models, removing the driveshaft (propeller shaft). After that, all fuel lines, vapor lines, and electrical connectors must be disconnected before the tank straps can be removed to lower the tank.
- Special Tools: A special lock ring tool (J-45722) is recommended to safely remove and install the fuel pump module lock ring without damaging it.
Pro Tip: While the tank is out, it is an excellent time to consider replacing the fuel pump module, especially if the vehicle has high mileage. This avoids having to do the same labor-intensive job twice if the pump fails later.
Cost Comparison
Prices can vary based on location and supplier. The following is an estimated breakdown of costs:
| Item | Estimated Cost |
|---|---|
| New OEM (GM Part #22731231) | Discontinued |
| New Aftermarket | $250 - $400+ |
| Used OEM | $100 - $250 |
| Shop Labor Cost | $280 - $540 |
Frequently Asked Questions (FAQ)
Can I repair my cracked plastic fuel tank?
It is strongly recommended not to repair a cracked fuel tank. While plastic welding kits exist, the repair may not be durable, and a failed repair can lead to a dangerous fuel leak. Replacement is the only safe and reliable solution.
Do I need to replace the fuel pump when I replace the tank?
It is not required, but it is highly recommended, especially on a vehicle with over 100,000 miles. The labor to access the fuel pump is the same as replacing the tank, so replacing it at the same time can save you significant money in the future.
Will this fuel tank fit my Chevrolet Equinox or Pontiac Torrent?
Yes, but only if your Equinox or Torrent is a 2005-2006 model year and has the 3.4L V6 engine. It will not fit models with other engines.
Why am I smelling gas but can't see a leak?
The leak is likely on the top of the fuel tank, from a cracked fuel pump nipple or a bad seal. Fuel evaporates quickly, so you may smell the vapors before you see liquid fuel, which often gets trapped on top of the tank before it has a chance to drip to the ground.
Technical Specifications
OEM Part Numbers: 22731231
Capacity: Approx. 16.3 Gallons Material: Molded Plastic
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.
- Saturn Vue:
- Symptoms of a Failing Fuel Tank
- 1. Strong Fuel Smell
- 2. Visible Fuel Leaks
- 3. Check Engine Light (EVAP Codes)
- Known Issues, Recalls, and TSBs
- Buying a Used 2004-2007 Saturn Vue Fuel Tank
- What to Inspect
- Compatibility
- Replacement Overview
- Cost Comparison
- Frequently Asked Questions (FAQ)
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