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Where is the temperature sensor on a 2009 Ford Transit?

The temperature sensor on a 2009 Ford Transit is typically located in the engine coolant system, near the thermostat housing or the radiator. This sensor monitors the temperature of the engine coolant and relays this information to the vehicle's computer, which uses it to control the engine's cooling system and other temperature-dependent functions.


Understanding the Location of the Temperature Sensor


The temperature sensor on a 2009 Ford Transit is an important component of the vehicle's engine management system. It is responsible for providing the engine control module (ECM) with real-time information about the engine's operating temperature. This data is then used by the ECM to optimize engine performance, fuel efficiency, and emissions control.


The temperature sensor is usually located in a position where it can accurately measure the temperature of the engine coolant as it circulates through the cooling system. This is typically near the thermostat housing or the radiator, as these are key points in the coolant flow path.


Accessing the Temperature Sensor



  • The temperature sensor is usually accessible from the top or front of the engine, making it relatively easy to access for inspection or replacement.

  • To access the sensor, you may need to remove some engine components, such as the air intake system or the engine cover, depending on the specific location.

  • Once the sensor is accessible, you can use a multimeter to test its resistance and ensure it is functioning correctly.


If the temperature sensor is faulty or not providing accurate readings, it can lead to various issues, such as poor engine performance, increased fuel consumption, or even engine overheating. In such cases, the sensor should be replaced to restore proper engine management and cooling system operation.

Are coolant sensor and temperature sensor the same?


A coolant temperature sensor (CTS) (also known as an ECT sensor or ECTS (engine coolant temperature sensor) is used to measure the temperature of the coolant/antifreeze mix in the cooling system, giving an indication of how much heat the engine is giving off.



Where is the outside temperature sensor on a Ford Transit Custom?


The ambient temp sensor is behind the front bumper on the left side. You may need to remove the bumper to be able to access it as it is usually mounted on the core support running across in front of the radiator.



What are the symptoms of a bad intake air temperature sensor?


This can result in poor engine performance such as rough idle, hesitation, reduced power, or sluggish acceleration. If the IAT sensor provides inaccurate readings, the engine may have difficulty starting, especially in cold weather. It may also cause the engine to stall or die shortly after starting.



Is it hard to replace a temperature sensor?


If it's easy to get to, “Replacing a coolant temperature sensor is generally considered a relatively straightforward job for someone with basic mechanical skills and the right tools,” says Knoll.



Where is the temperature sensor on a Ford Transit?


Yes, the coolant temperature sensor in a 2017 Ford Transit with the 3.7L engine is located under the intake manifold. It's mounted directly on the cylinder head. Therefore, using the AC in most situations won't harm your engine.



How do I know if my AC temperature sensor is bad?


If your AC shows irregular temperatures, where sometimes it's much cooler than other times, this can indicate AC sensor malfunction. This, in turn, will lead to AC sensors needing replacement.



What happens when the coolant temperature sensor goes bad on a Ford?


The faulty sensor might send a wrong signal to the computer, leading to a miscalculation in the engine timing and fuel calculation. If the computer keeps receiving a cold signal from the faulty sensor, it will interpret this as if the engine is cold and continue to inject more fuel.



Where are temperature sensors placed?


So where should you place temperature sensors in order to accurately report room temperature and properly control Heating and Cooling equipment? About 5 feet high on a column or interior wall in a central location with good circulation (though not too close to supply ductwork), with no hot or cold equipment nearby.



What are the symptoms of a faulty temperature sensor?


What Are The Symptoms of a Faulty Temperature Sensor?

  • The equipment is experiencing intermittent thermocouple failure.
  • Instruments are showing “Open Circuit”.
  • The temperature gauge on your equipment isn't reading accurately.
  • The equipment stops heating or cooling properly.
  • The equipment is overheating.



Where is the temperature control sensor located?


The coolant temperature sensor will be located directly behind the coolant pipe. In most modern cars and vehicles, this is present behind the right cylinder head that is located right underneath the air intake pipe.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.