Ford Expedition Ambient Air Temperature Sensor Guide (2011-2015)
Is your Expedition's temperature display wrong or is the A/C acting up? Here's what you need to know about fixing it.
- A faulty sensor primarily affects the climate control system and dashboard temperature display; it is not a critical safety issue.
- Replacement is very simple and can be done by most owners in under 30 minutes with basic tools.
- The sensor is located behind the front grille, making it easy to access.
- While Motorcraft is the OEM standard, quality aftermarket brands provide a reliable and cost-effective alternative for this repair.
Symptoms of a Failing Sensor
When the ambient air temperature sensor starts to fail on your Expedition, you'll notice a few specific problems. The most obvious is an incorrect temperature reading on your dashboard display. It might read extremely low, like -40°F, or unusually high. This happens because the sensor circuit may be open or shorted. A bad sensor will also cause issues with your automatic climate control. The A/C might not blow cold, or the heat may not work as expected, because the system is getting bad information about the outside temperature. In some cases, a failing sensor can trigger the Check Engine Light.
🎬 Watch this guide on symptoms and testing your temperature sensor.Choosing the Right Aftermarket Part
When replacing the sensor, you have a few options. You don't have to buy the most expensive part to fix the problem.
- OEM (Motorcraft): Motorcraft is Ford's official parts brand. The part number for this sensor is typically AU5Z-12A647-B. This is the benchmark for quality and fit, but it's also the most expensive option. If you want a guaranteed perfect match, this is your choice.
- Premium Aftermarket (Standard Ignition, Holstein): Brands like Standard Ignition and Holstein are well-known in the aftermarket world. They produce quality replacement parts that are designed to meet or exceed original specifications. These are a reliable choice and offer a good balance between cost and quality.
- Value-Priced Aftermarket (Dorman, Skyward, True Tech): Dorman is a very common aftermarket brand that offers direct-fit replacements at a lower price. While many users have success with these parts, some online discussions mention occasional quality differences compared to OEM. Brands like Skyward and True Tech offer the most budget-friendly options. For a simple sensor like this, a value-priced brand is often a perfectly acceptable repair. 🎬 See a comparison between Dorman aftermarket and Motorcraft OEM parts.
Cost Comparison
| Part Type | Estimated Cost |
|---|---|
| New OEM (Motorcraft) | $45 - $70 |
| New Aftermarket | $6.47 - $63.18 |
| Shop Labor | $50 - $100 |
Where is the sensor located?
On the 2011-2015 Ford Expedition, the ambient air temperature sensor is usually located at the front of the vehicle, typically behind the grille and in front of the radiator or A/C condenser. This position allows it to get an accurate reading of the outside air while the vehicle is moving. Sometimes it is found on the passenger side radiator support. On some other Ford models, it can be found on the bottom of the passenger-side mirror 🎬 Watch this video to help locate the sensor on your Ford., so it's worth checking there if you can't find it behind the grille.
Frequently Asked Questions
Can I replace the ambient air temperature sensor myself?
Yes, this is a very easy repair for a DIYer. The sensor is usually held in by a simple clip or a single bolt and has a single electrical connector. You may need to remove a plastic cover panel to access it, but the entire job typically takes less than 30 minutes with basic hand tools.
What happens if I don't replace a bad sensor?
Your Expedition will still run and drive, but you'll have to live with the annoyances. The outside temperature display will be wrong, and the automatic climate control won't be able to maintain a comfortable cabin temperature. Your A/C compressor may not engage properly, meaning you won't get cold air.
Are there any recalls for this part?
No, searches of the National Highway Traffic Safety Administration (NHTSA) database did not show any recalls specifically for the ambient air temperature sensor on the 2011-2015 Ford Expedition.
Why is my new sensor still reading the wrong temperature?
First, make sure the sensor is mounted correctly in the airflow path and not tucked behind the radiator where it can be affected by engine heat. Second, check the wiring and connector for any corrosion or damage, which is common for a part located at the front of the vehicle. Finally, some vehicles require you to drive for a few minutes above a certain speed for the computer to recognize the new sensor and update the reading.
Helpful Videos
Technical Specifications
OEM Part Numbers: AU5Z-12A647-B DY-1160
2-pin connector, typically mounts in a clip or single-bolt bracket behind the front grille.
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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.
- Ford Expedition: