Jeep Commander's Cooling System: One Or Two Fans?

does a 2008 jeep commander have 2 cooling fans

The 2008 Jeep Commander has a single cooling fan. However, some Jeep Commanders have both an electric and an engine-mounted fan, while others have only an electric fan. The electric fan is standard, and the engine-driven fan is added with the tow package.

Characteristics Values
Year 2008
Make Jeep
Model Commander
Engine 3.7L, 4.7L, 5.7L
Cooling Fan Single

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The 2008 Jeep Commander's cooling fan may only work when the 50 amp fuse is pulled and replaced

The 2008 Jeep Commander is equipped with a cooling fan that may only work when the 50-amp fuse is pulled and replaced. This issue can occur due to various reasons, and there are several steps that can be taken to troubleshoot and resolve the problem.

Firstly, it is important to understand the cooling system of the Jeep Commander. The cooling fan plays a crucial role in maintaining the engine's temperature by drawing air through the radiator and dissipating heat. The fan is controlled by a series of components, including relays, sensors, and the engine control module.

If the cooling fan is not functioning properly, it can lead to overheating, as mentioned by some owners of the 2008 Jeep Commander. In such cases, it is recommended to check the following:

  • Fuses and relays: Start by checking the 50-amp fuse and the relays located in the fuse box under the hood. Ensure that the fuse is not blown and the relays are functioning properly.
  • Coolant sensor: The coolant sensor plays a vital role in monitoring the engine temperature and activating the cooling fan when needed. Replacing the coolant sensor might be necessary if it is faulty.
  • Fan motor: If the fan motor is defective, it may prevent the fan from operating correctly. In such cases, replacing the fan motor might be the solution.
  • Wiring and connectors: Inspect the wiring and connectors for any signs of damage, corrosion, or loose connections. Ensure that the wires are securely connected to the fan motor and related components.
  • Radiator and shroud: A clogged or damaged radiator can impact the cooling system's performance. Additionally, a faulty radiator fan shroud can affect airflow and cooling efficiency.

In some cases, converting to a mechanical fan clutch system might be an alternative solution. This involves replacing the electric fan with a clutch-style fan, which can provide more reliable cooling. However, it is important to consult a professional mechanic or a Jeep specialist before making any significant modifications to the cooling system.

It is worth noting that the 2008 Jeep Commander has different engine options, and the cooling system may vary slightly between them. Therefore, it is essential to refer to the specific service manual for your vehicle's engine type when performing diagnostics and repairs.

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The 2008 Jeep Commander's cooling fan may not shut off until the vehicle is turned off

Check the relays in the fuse box under the hood:

  • Remove the fuse box cover and locate the relays associated with the cooling fan.
  • Inspect the relays for any signs of damage or corrosion.
  • If the relays appear damaged or corroded, they may need to be replaced.

Try replacing the coolant sensor:

  • The coolant sensor provides temperature information to the vehicle's computer, which controls the operation of the cooling fan.
  • A faulty coolant sensor may send incorrect temperature readings, causing the fan to stay on even when the engine is cool.

Inspect the fan motor:

  • If the relays and coolant sensor appear to be functioning properly, the issue may lie with the fan motor itself.
  • Check the fan motor for any signs of damage or wear, and consider replacing it if necessary.

Look for additional relays or sensors:

  • In some cases, there may be multiple relays or sensors involved in the cooling fan circuit.
  • Refer to the vehicle's service manual or consult a Jeep specialist to identify all the components in the circuit.

Consult a professional:

If the issue persists or you're unsure about any aspect of the diagnosis and repair process, take your vehicle to a trusted mechanic or Jeep dealership for further assistance.

It is important to address issues with the cooling fan promptly, as an overheated engine can lead to serious damage. Regular maintenance and timely repairs can help ensure the optimal performance and longevity of your 2008 Jeep Commander.

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The 2008 Jeep Commander's cooling fan may not turn on when the vehicle overheats

The 2008 Jeep Commander is equipped with an engine cooling fan to prevent overheating. However, there have been reports of issues with the cooling fan not functioning properly, leading to overheating. This can be caused by various factors, including a blown fuse, a faulty relay, a faulty coolant temperature sensor, or wiring issues.

If the cooling fan in your 2008 Jeep Commander is not turning on when the vehicle overheats, there are several potential causes and troubleshooting steps you can take to identify and resolve the issue:

  • Check the fuses: A blown fuse is a common issue that can prevent the cooling fan from functioning properly. Locate the fuse for the cooling fan in the fuse box and check if it is blown. If so, replace it with a new one of the same amperage.
  • Inspect the relays: The cooling fan relies on relays to operate. Check the relays in the fuse box under the hood to ensure they are functioning properly. If they appear to be faulty, consider replacing them.
  • Test the coolant temperature sensor: The coolant temperature sensor plays a crucial role in monitoring the engine temperature and activating the cooling fan when needed. A faulty sensor may not send the correct signal to the fan, preventing it from turning on. Refer to your vehicle's repair manual to test the sensor.
  • Examine the wiring: Wiring issues can also cause the cooling fan to malfunction. Inspect the wiring going to the radiator's control unit or relay for any signs of damage, corrosion, or loose connections. If you suspect a wiring issue, consult a professional mechanic for further diagnosis and repair.
  • Maintain coolant levels: Ensure that your coolant levels are optimal and top them up if necessary. Low coolant levels can affect the temperature sensor's performance and lead to engine overheating.
  • Check the radiator: A dirty or clogged radiator can impact the cooling system's effectiveness. Inspect the radiator for any debris or buildup and clean it if necessary.
  • Consider a mechanical fan: If you continue to experience issues with the electric cooling fan, you may consider converting to a mechanical fan. Consult a professional mechanic or a Jeep specialist forum for guidance on making this conversion.

It is important to address issues with the cooling fan promptly to prevent further damage to your vehicle. Overheating can cause serious engine problems and lead to costly repairs. Regular maintenance and monitoring of your vehicle's cooling system can help prevent such issues. Always refer to your owner's manual or seek professional assistance if you are unsure about any maintenance or repair procedures.

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The 2008 Jeep Commander may have both an electric and engine-mounted fan

The 2008 Jeep Commander may have both an electric and an engine-mounted fan. The electric fan is standard on the 4.7 engine, while the engine-mounted fan is added with the tow package. The electric fan is designed to prevent the engine from overheating, while the engine-mounted fan provides additional cooling when towing.

Some owners of the 2008 Jeep Commander have reported issues with the electric fan not working properly, which can cause the engine to overheat. In some cases, the fan may need to be replaced or repaired. It is also possible to convert the electric fan to a mechanical fan or add additional electric fans to improve cooling performance.

The 2008 Jeep Commander may also have a cooling fan clutch, which is a component that controls the operation of the engine cooling fan. The fan clutch can disengage when the engine reaches the proper operating temperature, saving power for the vehicle. However, if the fan clutch fails, it can cause the engine to overheat.

Overall, the 2008 Jeep Commander's cooling system may vary depending on the specific model and configuration, but it typically includes both an electric fan and an engine-mounted fan to ensure adequate cooling performance.

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The 2008 Jeep Commander's cooling fan may be replaced with an electric fan

The 2008 Jeep Commander is equipped with an electric cooling fan, which is a standard feature in modern vehicles. The fan is located behind the radiator and is made of plastic. It is controlled by the ECU, which determines when the fan should turn on and off to maintain optimal engine temperature.

While the electric cooling fan in the 2008 Jeep Commander is designed to be durable and provide efficient cooling, there may be instances where the fan malfunctions or becomes damaged. In such cases, replacing the fan with a new one is necessary to ensure the engine's proper cooling. Here are some detailed instructions and considerations for replacing the cooling fan in your 2008 Jeep Commander:

Symptoms of a Failing Radiator Fan:

It is important to be aware of the signs that indicate a problem with your radiator fan. Some common symptoms include:

  • The fan not coming on at all.
  • Blown radiator fan fuse due to electrical malfunction.
  • Overheating of the vehicle.
  • Poor air conditioning performance.
  • Unusual whirring noises coming from the radiator fan.

Replacement Procedure:

  • Safety First: Before beginning any work on your vehicle, ensure that the engine is turned off and has had sufficient time to cool down. It is also recommended to wear protective gear, such as gloves and eye protection.
  • Purchase the Correct Replacement Fan: It is crucial to acquire an exact replacement fan for your 2008 Jeep Commander. Consult a professional or refer to the owner's manual to ensure you purchase the correct part.
  • Access the Fan: Refer to the service manual for your vehicle to locate the electric fan and gain access to it. In some cases, you may need to remove certain components, such as the radiator shroud or other surrounding parts, to reach the fan.
  • Disconnect the Old Fan: Carefully disconnect the electrical connectors and any other attachments to the old fan. Take note of the wiring and mounting points for the new fan installation.
  • Install the New Fan: Position the new fan in place, ensuring it is securely mounted and connected to the electrical system. Refer to the installation instructions provided with the replacement fan, if available.
  • Test the New Fan: Once the new fan is installed, start the vehicle and allow it to reach its normal operating temperature. Ensure that the fan turns on and off as expected, and check for any unusual noises or vibrations.

Benefits of Replacing the Cooling Fan:

By replacing the cooling fan in your 2008 Jeep Commander with an electric fan, you can expect the following advantages:

  • Improved Engine Cooling: A new electric fan will provide efficient cooling to your engine, preventing overheating and ensuring optimal performance.
  • Restored Air Conditioning Performance: A properly functioning cooling fan is essential for the air conditioning system to work effectively, especially during lower-speed travels.
  • Enhanced Vehicle Reliability: By addressing the issue of a faulty cooling fan, you reduce the risk of unexpected breakdowns due to overheating and minimize the chances of costly engine repairs.

In conclusion, the 2008 Jeep Commander's cooling fan can be replaced with an electric fan. It is important to follow the correct procedures and consult professionals or the service manual if you are unsure about any steps. By replacing a faulty cooling fan, you can maintain the optimal performance and reliability of your vehicle.

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Frequently asked questions

The 2008 Jeep Commander has both an electric cooling fan and an engine-mounted fan.

Signs of a faulty cooling fan include engine overheating, excessively loud cooling fans, warm air being emitted from the A/C, and oil leaks.

To replace the cooling fan in your 2008 Jeep Commander, you will need to remove the fan cover, disconnect the fan shroud, pull out the nut securing the fan to the pump pulley, and then remove the fan. You can then install a new fan by securing it to the pump pulley and reassembling the fan cover and shroud.

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