Dorman 620-365 Dual Fan Assembly Instruction Manual

1. Introduction

This manual provides essential information for the installation, operation, and maintenance of your Dorman 620-365 Dual Fan Assembly. This engine cooling fan assembly is engineered to match the fit and performance of the original radiator fan on specific vehicles, ensuring effective cooling performance.

1.1 Vehicle Compatibility

This part is compatible with the following vehicles:

• Mitsubishi Outlander: 2003, 2004, 2005, 2006

2. Product Overview

2.1 Package Contents

Upon opening the package, verify that all components are present:

• 1 Radiator Fan Assembly

2.2 Key Features

• Ideal Replacement: Precision-engineered to match the fit and performance of the stock radiator fan assembly.
• Complete Package: Designed with the same materials and components as the original part.
• Quality Assured: Motors are tested in laboratory settings to ensure reliable performance.
• Cost-Effective: Provides a reliable solution at a competitive cost compared to dealership parts.

Figure 1: Dorman 620-365 Dual Fan Assembly, front view, showing two fan blades within a black plastic shroud.

3. Specifications

Detailed technical specifications for the Dorman 620-365 Dual Fan Assembly:

4. Installation Instructions

Important Safety Notice: Installation of automotive components, especially those related to engine cooling, can be complex and may require specialized tools and knowledge. It is highly recommended that installation be performed by a qualified automotive technician to ensure proper function and safety.

4.1 General Installation Steps (Professional Installation Recommended)

1. Preparation: Ensure the vehicle's engine is cool and the battery is disconnected to prevent electrical hazards. Drain the coolant if necessary.
2. Access: Remove any components obstructing access to the existing radiator fan assembly (e.g., radiator shroud, hoses, wiring).
3. Removal of Old Assembly: Disconnect the electrical connector from the old fan assembly. Unbolt and carefully remove the old fan assembly from its mounting points.
4. Installation of New Assembly: Position the Dorman 620-365 Dual Fan Assembly into place. Secure it with the appropriate bolts, ensuring it is firmly mounted.
5. Electrical Connection: Connect the 2-pin electrical connector of the new fan assembly to the vehicle's wiring harness. Ensure a secure and proper connection.
6. Reassembly: Reinstall any removed components, refill the coolant system, and reconnect the battery.
7. Testing: Start the engine and allow it to reach operating temperature. Verify that the cooling fans activate and operate correctly, maintaining proper engine temperature. Check for any leaks.

Figure 2: Close-up view of the 2-pin electrical connector on the Dorman 620-365 Dual Fan Assembly.

5. Operating Instructions

The Dorman 620-365 Dual Fan Assembly operates automatically in conjunction with your vehicle's engine cooling system. It is designed to activate when the engine coolant temperature reaches a predetermined level, or when the air conditioning system is engaged, to draw air through the radiator and condenser, thereby dissipating heat.

• No manual operation is required for this component.
• Ensure your vehicle's cooling system (radiator, thermostat, coolant levels) is properly maintained for optimal fan performance.

6. Maintenance

Regular inspection and basic maintenance can help ensure the longevity and efficient operation of your fan assembly.

• Visual Inspection: Periodically inspect the fan blades for any cracks, damage, or debris accumulation. Check the shroud for integrity.
• Electrical Connections: Ensure the electrical connector remains clean, secure, and free from corrosion.
• Cleaning: If accessible, gently clean any accumulated dirt or debris from the fan blades and shroud using a soft brush or compressed air. Avoid using harsh chemicals.
• Noise Check: Listen for any unusual noises (e.g., grinding, squealing) during fan operation, which could indicate a problem.

7. Troubleshooting

If you experience issues with your Dorman 620-365 Dual Fan Assembly, consider the following common scenarios. For complex issues, professional diagnosis is recommended.

• Fan Not Running:
  • Check the electrical connection for looseness or corrosion.
  • Verify the fuse related to the cooling fan in your vehicle's fuse box.
  • Ensure the engine is reaching operating temperature or the A/C is on, as the fan only activates under specific conditions.
  • A faulty fan relay or engine coolant temperature sensor could also prevent fan operation.
• Unusual Noise from Fan:
  • Inspect for debris caught in the fan blades or shroud.
  • Check for loose mounting bolts or a damaged fan motor bearing.
• Engine Overheating:
  • If the fan is not running, refer to 'Fan Not Running' above.
  • Ensure adequate coolant levels and proper function of other cooling system components (radiator, thermostat).

If troubleshooting steps do not resolve the issue, consult a certified automotive technician.

8. Warranty and Support

Dorman is committed to providing high-quality automotive replacement parts. For specific warranty information regarding your Dorman 620-365 Dual Fan Assembly, please refer to the warranty documentation included with your purchase or visit the official Dorman website.

For technical assistance, installation questions, or warranty claims, please contact Dorman customer service through their official channels. When contacting support, please have your product model number (620-365) and purchase details readily available.