Step-by-Step Guide to 2017 Dodge Journey Thermostat Replacement


Welcome to our step-by-step guide to replacing the thermostat in a 2017 Dodge Journey. In this article, we will walk you through the process of removing the old thermostat and installing a new one. Following these instructions will help ensure that your vehicle’s cooling system functions properly, preventing overheating and other potential issues.

What tools and materials do I need for the thermostat replacement?

To replace the thermostat in your 2017 Dodge Journey, you will need a few basic tools and materials. These include a new thermostat, gasket or sealant, a socket wrench set, pliers, a drain pan, coolant, and a funnel. It’s important to have all the necessary items on hand before you begin the replacement process to avoid any delays or complications.

Once you have gathered all the required tools and materials, you can begin the thermostat replacement process. First, make sure the engine is cool before you start working on the cooling system. Then, disconnect the negative battery cable to prevent any electrical accidents. Next, locate the thermostat housing and remove the bolts holding it in place using a socket wrench. Once the housing is removed, you can access the old thermostat and carefully remove it using pliers.

How do I install the new thermostat?

With the old thermostat removed, it’s time to install the new one. Before you do so, make sure to clean the thermostat housing and engine mating surface to ensure a proper seal. Then, insert the new thermostat into the housing, making sure it is positioned correctly. Depending on the specific thermostat you are using, you may need to apply a gasket or sealant to ensure a secure fit.

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Once the new thermostat is in place, reattach the thermostat housing using the bolts and socket wrench. Be sure to tighten the bolts evenly to prevent any leaks or damage. After the housing is secure, you can reconnect the negative battery cable and fill the cooling system with the appropriate coolant using a funnel. It’s important to follow your vehicle’s specific guidelines for coolant type and capacity to avoid any issues.

What precautions should I take during the thermostat replacement?

When replacing the thermostat in your 2017 Dodge Journey, it’s important to take certain precautions to ensure a successful and safe process. Always allow the engine to cool before beginning work on the cooling system to avoid burns or other injuries. Additionally, be sure to disconnect the negative battery cable to prevent any electrical accidents while working on the thermostat housing.

It’s also important to handle the thermostat and housing carefully to avoid any damage or leaks. Follow the specific instructions provided with the new thermostat to ensure a proper fit and seal. Finally, be mindful of the coolant capacity and type recommended for your vehicle, as using the wrong coolant can lead to overheating or other issues.

How do I test the new thermostat?

Once the new thermostat is installed and the cooling system is filled with coolant, you can test the system to ensure everything is functioning properly. Start the engine and allow it to reach normal operating temperature. Then, monitor the temperature gauge to ensure it stays within the appropriate range. If the engine begins to overheat or the temperature gauge shows abnormal readings, there may be an issue with the thermostat or cooling system that requires further inspection and potential repair.

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Do I need to replace the thermostat housing as well?

In most cases, the thermostat housing does not need to be replaced when installing a new thermostat. However, it’s important to inspect the housing for any signs of damage or wear that could affect the thermostat’s performance. If the housing is cracked, warped, or corroded, it may be necessary to replace it to ensure a proper seal and fit for the new thermostat.


Replacing the thermostat in your 2017 Dodge Journey is a straightforward process that can help maintain the proper functioning of your vehicle’s cooling system. By following the steps outlined in this guide and taking the necessary precautions, you can ensure a successful thermostat replacement that keeps your engine running smoothly and prevents overheating.


Can I use any type of coolant for my Dodge Journey?

No, it’s important to use the coolant type recommended for your specific vehicle to avoid potential issues with the cooling system. Using the wrong coolant can lead to overheating and other problems.

Do I need to flush the cooling system before replacing the thermostat?

It’s generally a good idea to flush the cooling system before installing a new thermostat to remove any dirt, debris, or old coolant that could affect the performance of the new thermostat.

How often should the thermostat be replaced?

There is no specific timeframe for thermostat replacement, but it’s a good idea to inspect the thermostat during regular maintenance and replace it if there are any signs of wear or malfunction.

Can I drive my Dodge Journey without a thermostat?

It’s not recommended to drive your vehicle without a thermostat, as it plays a crucial role in regulating the engine’s temperature. Driving without a thermostat can lead to overheating and other issues.

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What are the signs of a faulty thermostat?

Common signs of a faulty thermostat include engine overheating, fluctuating temperature gauge readings, and lack of heat from the vehicle’s heater. If you notice any of these symptoms, it’s important to have the thermostat inspected and potentially replaced.


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