The coolant temperature sensor in a 2009 Dodge Ram 1500 4.7 is located on the lower left side of the engine block, just behind the oil filter housing. It is typically held in place with one 10mm bolt and has two electrical connections attached to it. The first connection goes directly into the wiring harness and supplies power to the sensor while the second connection runs to an instrument cluster or other gauge for monitoring purposes.

When replacing this sensor, make sure that you use only OEM approved parts as after-market sensors may not be compatible with your vehicle’s electronics system and could cause damage if used incorrectly.

The 2009 Dodge Ram 1500 4.7 V8 engine is equipped with a coolant temperature sensor that monitors the temperature of the engine’s coolant and sends data to the vehicle’s computer system. This sensor can be found in the thermostat housing, which is located at the front-right corner of the cylinder head near where it meets with the intake manifold. If your vehicle is running too hot or not performing as expected, this could indicate an issue with your coolant temp sensor and should be checked out as soon as possible.

Engine Coolant Temperature Sensor replacement on 2009 Ram 1500

Where is the Cooling Temperature Sensor Located?

The cooling temperature sensor is located in the evaporator section of the air conditioning system. This sensor monitors and reports changes in refrigerant temperatures to the HVAC control unit, which regulates compressor speed and other components to maintain a desired temperature throughout your vehicle. It helps ensure that your car’s climate stays comfortable for you and your passengers no matter what kind of weather you are driving through outside.

The location of this particular component can vary depending on make, model, and year; however it is typically found somewhere near or around the evaporator coil itself. If you have any questions about where exactly your cooling temperature sensor may be located in your specific vehicle, consult an automotive technician who will be able to help you locate it quickly.

What Happens When Coolant Temperature Sensor Goes Bad?

When the coolant temperature sensor goes bad, it can cause a variety of issues with your vehicle. The most common symptom is that the engine will run too hot or overheat. This is because the computer does not know how hot the coolant is and therefore cannot regulate it correctly.

Other symptoms include poor fuel economy, reduced power and performance, rough idle, failure to start and misfiring. Additionally, if left unchecked for an extended period of time, this issue could lead to more serious problems such as cylinder head or gasket damage due to excessive heat buildup in the engine block and heads. To avoid these costly repairs, it is important to have your coolant temperature sensor checked regularly by a certified mechanic who can identify any potential issues before they become major problems.

How Do I Know If My Coolant Temp Sensor is Bad?

If you suspect that your coolant temperature sensor might be bad, there are a few ways to test it. First, check the wiring harness and make sure that it is properly connected to the coolant temperature sensor. If it appears loose or disconnected, reconnect it firmly before proceeding with any other tests.

Next, use a multimeter to measure the resistance of the coolant temperature sensor when cold and hot. The resistance should decrease as the engine temperature increases. If this isn’t happening, then replace your coolant temp sensor as soon as possible.

Additionally, you can also look for signs of corrosion on both connectors at either end of the wiring harness; if there is corrosion present then chances are your coolant temp sensor has failed too! Lastly, if all else fails you can always opt for an OBD II scan tool – these will provide more accurate readings than a multimeter so they’re well worth investing in if you think something is wrong with your vehicle’s cooling system!

Where is the Coolant Temperature Sensor Located on a 2007 Dodge Ram 1500 5.7 Hemi?

The coolant temperature sensor on a 2007 Dodge Ram 1500 5.7 Hemi is located near the bottom of the radiator, just above where it connects to the engine block. The sensor reads the temperature of your engine’s coolant and sends that information to your vehicle’s computer. This allows the computer to adjust things like spark timing, fuel injection, and even transmission shifting speeds in order to keep everything running smoothly and efficiently.

To access it you will need to remove some of plastic trim pieces as well as several bolts from underneath your hood before being able to take out and replace the old one with a new one.

2009 Dodge Ram 1500 4.7 Coolant Temp Sensor Location


2009 Dodge Ram 1500 Coolant Temp Sensor

The 2009 Dodge Ram 1500 is equipped with a coolant temperature sensor, located on the passenger side of the engine block. This sensor monitors the coolant temperature and sends that information to the vehicle’s computer in order to adjust fuel mixture, idle speed and other parameters as needed. Replacing this sensor when it starts to fail is important for keeping your truck running smoothly and efficiently.

2014 Ram 1500 Coolant Temperature Sensor Location

The coolant temperature sensor on the 2014 Ram 1500 is located in the front of the engine block, just below the intake manifold. This sensor monitors and sends a signal to your vehicle’s computer so it can adjust fuel flow and ignition timing as needed for optimal engine performance. If you’re having issues with your truck running rough or not starting up properly, checking this component might be a good place to start!

Dodge Ram Temp Gauge Not Working

If you own a Dodge Ram and have noticed that the temperature gauge is not working, it could be due to one of several possible causes. Common issues include an electrical wiring or connector problem, a faulty temperature sensor or sending unit, or even a bad thermostat. If this issue is not addressed in a timely manner, your engine can overheat which can result in significant damage to your vehicle.

It’s important to diagnose and address any issues with your Dodge Ram’s temp gauge as soon as possible – consider taking it into a certified mechanic for further inspection and repair if necessary.


The 2009 Dodge Ram 1500 4.7 has a coolant temperature sensor located on the thermostat housing. This is an important part of any cooling system, as it helps to regulate the flow of coolant and ensure that the engine remains at its optimal operating temperature. By properly maintaining this piece, you can help ensure your truck’s performance and longevity.

With this information in hand, you should be able to easily locate and replace your 4.7’s coolant temp sensor if needed.

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