A Guide to the Engine Camshaft Position Sensor for the 2003-2005 Lincoln Aviator
If your Aviator is stalling or has a check engine light on, a bad camshaft position sensor could be the culprit.
- This guide applies only to the 2003-2005 Lincoln Aviator with the 4.6L V8 engine.
- A failing sensor will typically cause a Check Engine Light with codes P0340 or P0345, along with stalling and poor performance.
- Your Aviator has two sensors; it's a good practice to replace them both at the same time.
- For best results, choose a high-quality aftermarket brand like Motorcraft, Delphi, or Standard Motor Products.
About This Guide
This article is for owners of the first-generation Lincoln Aviator, which was produced for the 2003, 2004, and 2005 model years. These vehicles are equipped with a 4.6L 32-valve DOHC V8 engine. If you own a 2020 or newer Aviator, this information does not apply to your vehicle.
Symptoms of a Failing Camshaft Position Sensor
When a camshaft position sensor starts to fail, it can cause noticeable problems with how your Aviator runs. The sensor sends critical data to the engine computer, and when that data is wrong or missing, the engine's timing for fuel and spark gets thrown off. You may experience one or more of the following symptoms.
Choosing the Right Aftermarket Sensor
When replacing a sensor on your Aviator, you have a choice between Original Equipment (OEM) and aftermarket parts. For a critical component like the camshaft position sensor, the quality of the replacement part matters.
- Premium Aftermarket (OEM-Equivalent): Brands like Motorcraft (which is the original Ford part), Delphi, and Standard Motor Products (SMP) are known for making high-quality sensors that meet or exceed the original specifications. These are often manufactured with better materials and undergo more rigorous testing to ensure they provide an accurate and reliable signal to the engine computer. For maximum reliability and to avoid replacing the part again soon, these brands are a strong choice.
- Mid-Grade Aftermarket: Brands such as Dorman and Spectra offer a good balance of quality and value. They are reputable manufacturers that produce reliable parts, though they may not always have the same level of engineering or testing as the premium brands. They are a solid option for a daily-driven vehicle.
- Economy Brands: Brands like Walker Products, Global Parts, and True Tech provide a budget-friendly option. While they meet the basic requirements to function, their long-term durability and signal accuracy may not be as consistent as higher-priced alternatives. These can be a viable choice if the budget is the primary concern, but be aware of the potential for a shorter service life.
Known Issues, Recalls, and Technical Service Bulletins (TSBs)
As of late 2023, there are no specific recalls or widespread Technical Service Bulletins (TSBs) from the National Highway Traffic Safety Administration (NHTSA) for the camshaft position sensors on the 2003-2005 Lincoln Aviator. However, the diagnostic trouble code P0340 (Camshaft Position Sensor 'A' Circuit Malfunction) is a common issue. While this often points to a failed sensor, it can also be caused by wiring problems or, in some cases, a stretched timing chain affecting the cam/crank correlation.
| Part Type | Price Range |
|---|---|
| New Aftermarket | $16.56 - $46.43 |
| New OEM (Motorcraft) | $30 - $55 |
| Shop Labor | $75 - $150 |
Frequently Asked Questions
Can I replace the camshaft position sensor myself?
Yes, this is a very DIY-friendly repair. The sensors are located on the front of the cylinder heads and are typically held in by a single bolt. The job requires basic hand tools and can usually be completed in under 30 minutes.
How many camshaft position sensors does my Aviator have?
Your 2003-2005 Lincoln Aviator's 4.6L V8 engine has two camshaft position sensors. One is located on the front of the driver's side cylinder head (Bank 2), and the other is on the front of the passenger's side cylinder head (Bank 1).
What happens if I don't replace a bad sensor?
Ignoring a failing camshaft position sensor can lead to more significant problems. You will likely experience worsening symptoms like stalling, poor acceleration, and very poor fuel economy. Eventually, the engine may refuse to start at all, leaving you stranded.
Is an aftermarket sensor good enough for my Aviator?
Yes, a quality aftermarket sensor can be a reliable and cost-effective choice. Brands like Delphi, Standard Motor Products, and Dorman have a strong reputation. While the OEM Motorcraft part is the benchmark, these premium aftermarket options offer comparable performance for many owners.
Technical Specifications
OEM Part Numbers: 1W7Z6B288AB F1AZ6B288A XC3Z6B288AA
The 2003-2005 Lincoln Aviator uses two identical camshaft position sensors, one for each cylinder head (Bank 1 and Bank 2) of the 4.6L V8 engine.
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.
- Lincoln Aviator: