Dorman 600-931 Transfer Case Motor Instruction Manual

Product Overview

This Dorman 600-931 Transfer Case Motor is a direct replacement part designed to restore proper 4WD shifting functionality in compatible Ford models. It is engineered to install and perform like the original equipment, featuring a factory-style electrical connector and a weathertight seal for enhanced protection against corrosion.

Key features include:

• Direct replacement for specific vehicle applications.
• Durable construction with weathertight seal.
• 100% new, not remanufactured.
• Vehicle-specific application validation tested for quality assurance.

Compatibility

This transfer case motor is compatible with select Ford Ranger models from 2006 to 2011. Always verify fitment for your specific vehicle's make, model, and trim level before installation.

What's in the Box

The package includes:

• 1 x Dorman 600-931 Transfer Case Motor Assembly

Installation (Setup)

Installation of the Dorman 600-931 Transfer Case Motor requires basic automotive knowledge and tools. It is recommended to consult a professional mechanic if you are unsure about any steps. Always ensure the vehicle is safely supported and the battery is disconnected before beginning work.

General Installation Steps:

1. Preparation: Turn off the vehicle and ensure it is in Park (automatic) or Neutral (manual) with the parking brake engaged. Disconnect the negative terminal of the vehicle's battery. Safely lift and support the vehicle to access the transfer case.
2. Locate Old Motor: The transfer case motor is typically located on the rear of the transfer case, often on the driver's side.
3. Disconnect Wiring: Carefully disconnect the electrical pigtail from the old transfer case motor.
4. Remove Old Motor: Remove the mounting bolts securing the old motor to the transfer case. Be aware that sealant around the mating surface may make removal difficult; gentle prying may be necessary.
5. Clean Mating Surface: Clean any old sealant or debris from the transfer case mating surface to ensure a proper seal with the new motor.
6. Install New Motor: Position the new Dorman 600-931 Transfer Case Motor onto the transfer case. It is recommended to apply a thin bead of RTV sealant around the edge of the mating surface (not the entire surface) before installation to prevent water and dirt ingress. Secure the motor with the original mounting bolts. Tip: Leave the support bracket at the tail of the motor loose until the main fasteners are tightened, then secure the bracket.
7. Reconnect Wiring: Reconnect the electrical pigtail to the new motor.
8. Reconnect Battery: Reconnect the negative terminal of the vehicle's battery.
9. Test Functionality: Proceed to the "Operating" section for initial testing.

Operating the 4WD System

After installation, verify the proper operation of your vehicle's 4WD system. The exact procedure may vary slightly by vehicle model, but the general steps are as follows:

1. Initial Test (Vehicle Off):
   • With the vehicle off, turn the ignition key to the "ON" position (do not start the engine).
   • Ensure the transmission is in Park (automatic) or Neutral (manual).
   • Rotate the 4WD selector knob on your dashboard to "4WD HIGH". After a few seconds, you should hear the transfer case motor engage, and the "4WD" indicator light on your dashboard should illuminate.
   • Press the brake pedal and shift the transmission to Neutral.
   • Rotate the 4WD selector knob to "4WD LOW". After 2-5 seconds, the "4WD LOW" indicator light should illuminate on your instrument panel.
   • Rotate back to "4WD HIGH" (wait approximately 5 seconds).
   • Then rotate back to "2WD" (wait approximately 5 seconds).
   • Shift the transmission back to Park and turn the ignition key off.
2. Road Test (Safe Environment):
   • Once the initial test is successful, start the vehicle and drive in a safe, open area (e.g., a dirt road or empty parking lot) to confirm proper engagement and disengagement of 4WD High and Low ranges.
   • Listen for any unusual noises or grinding during shifts.

If the system does not engage or disengage correctly, refer to the Troubleshooting section.

Maintenance

The Dorman 600-931 Transfer Case Motor is designed for long-term reliability and typically requires no routine maintenance. However, regular inspection of the surrounding components can help ensure its longevity:

• Check for Leaks: Periodically inspect the area around the transfer case motor for any signs of fluid leaks, which could indicate issues with the transfer case itself or the motor's seal.
• Inspect Wiring: Ensure the electrical connector and wiring harness remain securely connected and free from damage, corrosion, or fraying.
• Transfer Case Fluid: Adhere to your vehicle manufacturer's recommended schedule for checking and changing transfer case fluid. Proper fluid levels and condition are crucial for the overall health of the transfer case and its components, including the motor.
• Battery Health: Ensure your vehicle's battery is in good condition and provides adequate voltage. A weak battery can sometimes cause intermittent 4WD engagement issues, as the transfer case motor requires sufficient power to operate.

Troubleshooting

If you experience issues with your 4WD system after installing the Dorman 600-931 Transfer Case Motor, consider the following common problems and solutions:

For complex issues or if troubleshooting steps do not resolve the problem, it is advisable to seek assistance from a certified automotive technician.

Specifications

Warranty and Support

Dorman products are known for their quality and reliability. For specific warranty information regarding the Dorman 600-931 Transfer Case Motor, please refer to the official Dorman website or contact Dorman customer support directly. Keep your purchase receipt as proof of purchase for any warranty claims.

For further assistance or technical support, you can visit the Dorman Store on Amazon or their official corporate website.