Ford Ranger Engine Intake Manifold Temperature Sensor Guide (2018-2022)
Experiencing poor fuel economy or a rough idle in your Ranger? A faulty intake temperature sensor could be the culprit.
- A bad IAT sensor on a 2018-2022 Ranger typically causes a Check Engine Light, poor fuel economy, and rough running.
- The sensor is a separate part located on the air filter box, making it an extremely easy and inexpensive DIY replacement.
- Look for trouble codes P0113 or P0112 to help confirm the sensor is the problem.
- A quality aftermarket brand like Standard Ignition provides a reliable repair for less money than an OEM part.
Is Your Ranger's Intake Temperature Sensor Failing?
A failing intake air temperature (IAT) sensor can cause noticeable issues with your truck's performance. Because the engine's computer relies on this sensor for critical fuel calculations, a bad reading can make the engine run too rich (too much fuel) or too lean (not enough fuel). This can lead to a variety of symptoms.
🎬 See this video for more symptoms of a bad sensorCommon Symptoms of a Bad IAT Sensor:
- Check Engine Light: This is often the first and most obvious sign. A code like P0113 (Circuit High) or P0112 (Circuit Low) will be stored in the computer.
- Poor Fuel Economy: If the sensor incorrectly tells the computer the air is cold, the engine will use more fuel than necessary.
- Rough Idle: An incorrect air-fuel mixture can make your engine idle unevenly or shake.
- Engine Hesitation: You might notice a delay or stumble when you press the gas pedal because the engine isn't getting the right fuel mixture for acceleration.
- Hard Starting: Especially in cold weather, a faulty sensor can make it difficult for the engine to start smoothly.
Known Issues & Recalls
As of early 2026, there are no specific recalls or widespread Technical Service Bulletins (TSBs) from Ford or the NHTSA for the intake air temperature sensor on the 2018-2022 Ford Ranger. Problems with this sensor are typically isolated incidents of part failure.
Choosing a New Aftermarket IAT Sensor
When replacing the IAT sensor, you have the choice between an original Ford part (OEM) and an aftermarket one. For a simple sensor like this, a quality aftermarket part offers significant savings without a compromise in performance.
- OEM: The original Ford sensor is a guaranteed fit and quality, but comes at a higher price.
- Aftermarket (Standard Ignition): Brands like Standard Ignition produce reliable, direct-fit replacement parts that meet or exceed original specifications. They are a cost-effective solution and reviews from vehicle owners are generally positive, confirming proper fit and function.
Installation Tip for 2018-2022 Rangers
Replacing this sensor is one of the easiest jobs you can do on your Ranger. It is located directly on top of the air filter box on the passenger side of the engine bay. The process involves unplugging the electrical connector, releasing a small plastic tab, and giving the sensor a quarter-turn to remove it. No special tools are needed, and the job can be done in under 10 minutes.
Cost of Replacing an IAT Sensor
| Part Type | Price Range |
|---|---|
| New OEM (Ford) | $19 - $30 |
| New Aftermarket (Standard Ignition) | $15 - $25 |
| Shop Labor | $30 - $70 |
Frequently Asked Questions
Can I just clean my IAT sensor?
Sometimes, the sensor can be covered in dirt or oil, which can affect its reading. You can try cleaning it carefully with a dedicated mass airflow sensor cleaner. However, if the sensor has failed electronically, which is common, cleaning will not fix the problem and replacement is necessary.
Is the IAT sensor the same as the MAF sensor?
No. On many vehicles, the IAT sensor is built into the Mass Airflow (MAF) sensor. However, on the 2018-2022 Ford Ranger 2.3L, the IAT is a separate, standalone sensor located on the airbox, making it much cheaper and easier to replace.
What is OBD-II code P0113? 🎬 Watch: P0113 code explained and how to fix it fast
P0113 is a very common code for a failed IAT sensor. It means the sensor circuit is sending a high voltage signal to the computer, which the computer interprets as an extremely cold temperature (often around -40°F). This causes the engine to run rich. A user on a forum reported this exact code on their 2020 Ranger after simply changing the air filter, which can sometimes damage the nearby sensor.
Do I need to disconnect the battery to replace the sensor?
While it is a simple, low-voltage sensor, it is always a good practice to disconnect the negative battery terminal before replacing any electronic component on your vehicle to prevent any risk of short circuits.
Helpful Videos
Technical Specifications
OEM Part Numbers: DS7Z-12A697-A
The Intake Air Temperature sensor on the 2018-2022 Ford Ranger is a standalone, 2-pin NTC (Negative Temperature Coefficient) thermistor sensor that twists and locks into the air cleaner assembly.
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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.
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