Understanding the Cooling System of the 2017 Dodge Journey
The cooling system in a vehicle is crucial for maintaining optimal engine performance and preventing overheating. In this comprehensive guide, we will delve into the intricacies of the cooling system found in the 2017 Dodge Journey, exploring its components, functions, and maintenance requirements. By the end of this article, you will have a thorough understanding of how this vital system operates and the steps you can take to ensure its longevity.
Components of the Cooling System
The cooling system in the 2017 Dodge Journey consists of several key components that work together to regulate the engine’s temperature. These components include:
- Radiator: The radiator is a vital part of the cooling system, responsible for dissipating heat from the coolant. It consists of a series of tubes and fins that allow air to pass through, cooling the coolant as it flows.
- Water Pump: The water pump circulates coolant throughout the system, ensuring a continuous flow of cooled liquid to the engine. It is driven by a belt connected to the engine’s crankshaft.
- Thermostat: Acting as a temperature regulator, the thermostat controls the flow of coolant to the engine. It opens and closes based on the engine’s temperature, allowing for efficient cooling.
- Coolant Hoses: These flexible hoses connect the various components of the cooling system, allowing coolant to flow freely. They are designed to withstand high temperatures and pressure.
- Radiator Fan: The radiator fan, either electric or belt-driven, assists in cooling the radiator by forcing air through it. It engages when the engine temperature rises, providing additional cooling.
- Heater Core: Located within the dashboard, the heater core is a small radiator that utilizes hot coolant to provide warmth to the vehicle’s interior. It is connected to the cooling system and controlled by the HVAC system.
- Coolant Reservoir: The coolant reservoir, also known as the overflow tank, stores excess coolant and maintains the system’s fluid level. It is connected to the radiator and allows for easy coolant refilling.
How the Cooling System Works
The cooling system in the 2017 Dodge Journey operates through a continuous cycle, ensuring the engine remains within an optimal temperature range. Here’s a step-by-step explanation of the process:
- Coolant Circulation: When the engine is running, the water pump circulates coolant through the system. The coolant, a mixture of water and coolant additives, absorbs heat from the engine as it passes through the engine block and cylinder head.
- Thermostat Regulation: The thermostat plays a crucial role in controlling the coolant flow. When the engine is cold, the thermostat remains closed, preventing coolant from circulating to the radiator. This allows the engine to warm up quickly. As the engine reaches its operating temperature, the thermostat opens, allowing coolant to flow to the radiator for cooling.
- Radiator Cooling: The hot coolant from the engine enters the radiator, where it passes through a series of tubes surrounded by cooling fins. Air flows through the radiator, facilitated by the radiator fan, dissipating heat from the coolant. This cooled coolant then returns to the engine, absorbing heat once again.
- Heater Core Function: When the vehicle’s heating system is activated, hot coolant from the engine is directed through the heater core. Air blown over the heater core is warmed, providing heat to the vehicle’s interior.
- Coolant Reservoir: Excess coolant that expands due to heat is stored in the coolant reservoir. As the engine cools down, the coolant contracts, creating a vacuum that draws coolant back into the system from the reservoir.
Maintenance and Care
Proper maintenance of the cooling system is essential to ensure its longevity and prevent costly repairs. Here are some key maintenance tips for the 2017 Dodge Journey’s cooling system:
- Regular Coolant Checks: Inspect the coolant level regularly, ensuring it is within the “Full” and “Add” marks on the coolant reservoir. Top up with the recommended coolant mixture if needed.
- Coolant Flush and Replacement: Over time, coolant can degrade and lose its effectiveness. It is recommended to flush and replace the coolant every 50,000 miles or as specified in the vehicle’s maintenance schedule.
- Radiator and Hoses Inspection: Visually inspect the radiator and coolant hoses for any signs of damage, leaks, or corrosion. Replace any worn-out or damaged components promptly.
- Water Pump Inspection: The water pump should be inspected for leaks and wear. If any issues are detected, it is advisable to replace the water pump to prevent further damage.
- Thermostat Check: If the engine is not reaching its optimal operating temperature or is overheating, a faulty thermostat may be the cause. Have the thermostat inspected and replaced if necessary.
- Radiator Fan Function: Ensure the radiator fan is functioning properly. If it is electric, test its operation by engaging the air conditioning system. If it is belt-driven, inspect the belt for wear and replace if needed.
- Heater Core Maintenance: The heater core can become clogged with debris over time. If the vehicle’s heating performance decreases, have the heater core flushed or replaced.
Troubleshooting Common Issues
While the cooling system in the 2017 Dodge Journey is designed for reliability, certain issues may arise. Here are some common problems and their potential solutions:
- Overheating: If the engine is overheating, check for a faulty thermostat, a malfunctioning water pump, or a coolant leak. Inspect the cooling system components and replace any damaged parts.
- Coolant Leaks: Visible coolant leaks indicate a problem in the system. Inspect the radiator, hoses, water pump, and other components for leaks. Replace or repair the affected parts.
- Low Coolant Level: A consistently low coolant level may indicate a leak or a faulty thermostat. Have the system inspected and address any issues found.
- No Heat in Cabin: If the vehicle’s heating system is not providing adequate warmth, check the heater core for clogs or restrictions. Flushing the heater core or replacing it may be necessary.
- Noisy Water Pump: A noisy water pump may indicate bearing wear or a worn-out impeller. Replace the water pump to prevent further damage.
Visual Guide: Cooling System Components
| Component | Description |
|---|---|
| Radiator | Dissipates heat from the coolant, allowing it to cool down. |
| Water Pump | Circulates coolant throughout the system, ensuring proper flow. |
| Thermostat | Regulates coolant flow based on engine temperature. |
| Coolant Hoses | Flexible hoses that connect the cooling system components, allowing coolant circulation. |
| Radiator Fan | Assists in cooling the radiator by forcing air through it. |
| Heater Core | Provides heat to the vehicle’s interior by utilizing hot coolant. |
| Coolant Reservoir | Stores excess coolant and maintains the system’s fluid level. |
Conclusion
The cooling system in the 2017 Dodge Journey is a vital component, ensuring the engine operates within its optimal temperature range. By understanding the various components and their functions, you can maintain and troubleshoot the system effectively. Regular maintenance, such as coolant checks and replacements, will help prevent overheating and keep your Dodge Journey running smoothly. Remember to inspect the cooling system components regularly and address any issues promptly to avoid costly repairs.
FAQ
How often should I check the coolant level in my 2017 Dodge Journey?
+It is recommended to check the coolant level regularly, ideally once a month or before long trips. This ensures that the cooling system has the proper fluid level to function effectively.
Can I use any type of coolant in my 2017 Dodge Journey?
+It is crucial to use the recommended coolant specified by Dodge for your 2017 Journey. Using the wrong type of coolant can lead to corrosion and damage to the cooling system components.
What are the signs of a failing water pump in my Dodge Journey?
+A failing water pump may exhibit signs such as a noisy operation, visible leaks, or a decrease in cooling system efficiency. If you notice any of these symptoms, it is important to have the water pump inspected and replaced if necessary.
How often should I flush and replace the coolant in my 2017 Dodge Journey?
+It is generally recommended to flush and replace the coolant every 50,000 miles or as specified in your vehicle’s maintenance schedule. Regular coolant replacement helps maintain its effectiveness and prevents corrosion.
What should I do if my Dodge Journey’s engine is overheating frequently?
+If your Dodge Journey’s engine is overheating, it is essential to identify and address the underlying cause. Common issues include a faulty thermostat, coolant leaks, or a malfunctioning water pump. Have your vehicle inspected by a qualified technician to diagnose and resolve the problem.
