Ford Taurus Ambient Air Temperature Sensor: A Guide for 1991-2013 Models
Fix your inaccurate temperature display and climate control problems by choosing the right sensor.
- Verify the sensor's location before buying: it's behind the grille on 1991-2009 models and in the passenger mirror on 2010-2013 models.
- A reading of -40° on the display is a sure sign of a failed or disconnected sensor.
- Check for diagnostic codes like P0071-P0073 to confirm the sensor is the issue before replacing parts.
- Motorcraft is the OEM brand for a guaranteed fit, but quality aftermarket brands like Dorman and Standard Ignition are reliable alternatives.
Is Your Ford Taurus Ambient Air Temperature Sensor Failing?
When the ambient air temperature sensor goes bad, it can cause a few noticeable problems. Because this sensor provides key data for the automatic climate control, a failure often leads to issues with the heating and A/C system. You might also see a Check Engine Light on your dashboard.
Key Failure Symptoms:
- Incorrect Outside Temperature Display: The temperature shown on your dash or infotainment screen is obviously wrong, such as showing 35°F on a hot day.
- Automatic Climate Control Malfunctions: If you use the "Auto" setting, the system may not cool or heat the cabin properly. It might blow hot air when you want cold, or vice-versa, because it's getting bad information.
- A/C Compressor Won't Engage: In some cases, a failed sensor can prevent the A/C compressor from turning on, leaving you with no cold air at all. 🎬 See how to test the sensor if your AC fails.
- Check Engine Light: A faulty sensor can trigger the Check Engine Light and store diagnostic trouble codes (DTCs) like P0071, P0072, or P0073. 🎬 Learn more about diagnosing and fixing the P0073 code.
Choosing the Right Aftermarket Sensor: A Critical Difference
Before buying a replacement sensor for your Taurus, you must know its location, which changed depending on the model year.
Generation Matters: Find Your Sensor Location
- For 1991-2009 Ford Taurus: The ambient air temperature sensor is typically located behind the front grille. It is a small, two-wire plastic sensor clipped into the radiator support or a nearby bracket, away from the direct heat of the engine. 🎬 Watch: Locate the sensor on 2008-2009 models.
- For 2010-2013 Ford Taurus: Ford moved the sensor. On these models, it is located on the bottom of the passenger-side (right-hand) exterior mirror housing. The sensor is often sold as part of the mirror assembly by the dealer, but the sensor itself is available as a separate part from both OEM and aftermarket brands.
Ordering the wrong part is the most common mistake. Double-check your vehicle's year and visually confirm the sensor's location before purchasing.
OEM vs. Aftermarket Brands
For a simple sensor like this, both OEM and quality aftermarket options are good choices. The most important factor is getting the correct part for your Taurus's year and location.
| Brand Tier | Brands | Quality & Notes |
|---|---|---|
| OEM / Premium | Motorcraft | As the original equipment supplier for Ford, Motorcraft parts guarantee a perfect fit and function. They are engineered specifically for your vehicle and are recommended by Ford Motor Company. This is a reliable, worry-free choice. |
| Quality Aftermarket | Dorman, Standard Ignition, Holstein | These brands are well-regarded in the aftermarket. Dorman offers direct replacement parts that are often tested on vehicles to ensure performance. Standard Ignition (SMP) is known for making quality electronic components that meet or exceed OEM standards. Holstein claims to use factories that also supply OEMs and offers a strong warranty. |
| Budget / Economy | URO Parts, Skyward, True Tech | These brands provide a low-cost alternative. However, forum discussions often categorize brands like URO Parts as being lower quality, best used for non-critical components. For a sensor that impacts your climate control's daily function, sticking with a mid-tier or premium brand is often worth the small price difference. |
Replacement Cost
Replacing the ambient air temperature sensor is an affordable repair. The part itself is inexpensive, and labor is minimal.
| Part Type | Estimated Cost |
|---|---|
| New OEM (Motorcraft) | $27 - $58 |
| New Aftermarket | $6 - $64 |
| Shop Labor | $50 - $100 |
Pro Tip: Clean First, Replace Second
Since the sensor is exposed to the elements, its electrical connector can get corroded or dirty. Before buying a new part, try unplugging the sensor and cleaning the electrical contacts with a dedicated contact cleaner. Sometimes, a poor connection is the only problem.
Frequently Asked Questions (FAQ)
How do I know if it's the sensor or another climate control problem?
The best way is to use an OBD-II scanner to check for codes. Codes P0070, P0071, P0072, or P0073 specifically point to the ambient air temp sensor or its circuit. If you have issues like air blowing from the wrong vents or strange clicking noises from the dash, the problem is more likely a different part, such as a blend door actuator.
Can I replace the ambient air temperature sensor myself?
Yes, this is a very DIY-friendly job for most owners. For sensors behind the grille, you can typically reach it by removing a few plastic clips or screws. For the mirror-mounted sensor, the sensor itself clips into the bottom of the mirror housing and can be replaced without removing the entire mirror. The electrical connector is a simple plug.
Are there any recalls for the Ford Taurus ambient temp sensor?
Searches of the National Highway Traffic Safety Administration (NHTSA) database did not find any specific recalls or technical service bulletins (TSBs) for the ambient air temperature sensor on the 1991-2013 Ford Taurus.
My dash shows -40°F. Does that mean the sensor is bad?
Yes, a reading of -40° is a default value the computer displays when it receives no signal or a completely invalid signal from the sensor. This almost always means the sensor has failed or its wiring is broken or disconnected.
Helpful Videos
Technical Specifications
OEM Part Numbers: AU5Z-12A647-B DY-1160 AE5Z12A647A DY1137
The sensor is a thermistor, which is a type of resistor whose resistance changes with temperature. It uses a 2-pin connector to relay this information to the vehicle's computer. The physical design varies significantly between the grille-mounted and mirror-mounted versions.
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.
- Ford Taurus:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Ford Taurus Ambient Air Temperature Sensor Failing?
- Key Failure Symptoms:
- Choosing the Right Aftermarket Sensor: A Critical Difference
- Generation Matters: Find Your Sensor Location
- OEM vs. Aftermarket Brands
- Replacement Cost
- Pro Tip: Clean First, Replace Second
- Frequently Asked Questions (FAQ)
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