Fuel Pump Replacement | Jeep Cherokee XJ 97-01

Introduction

This tutorial provides a comprehensive guide on replacing the fuel pump module in a 1999 Jeep Cherokee XJ. Whether you're experiencing fuel delivery issues or just want to perform preventive maintenance, this step-by-step process will help you successfully complete the replacement.

Step 1: Gather Necessary Tools and Parts

Before starting the replacement, ensure you have all the required tools and parts:

• Parts Needed:
  • New fuel pump module (e.g., Delphi FG1076)
  • Fuel tank straps
  • Fuel filler hose
• Tools Required:
  • Fuel module ring removal tool
  • Socket set
  • Screwdrivers
  • Pliers
  • Safety glasses
  • Gloves

Tip: Purchase parts in advance, and consider checking compatibility with your Jeep's model year.

Step 2: Prepare the Vehicle

1. Safety First:

   • Park the vehicle on a flat surface and engage the parking brake.
   • Disconnect the battery to prevent any electrical shorts.

2. Relieve Fuel Pressure:

   • Locate the fuel pump relay in the fuse box and remove it.
   • Start the engine until it stalls to relieve fuel pressure.

Step 3: Access the Fuel Tank

1. Lift the Vehicle:

   • Use a jack to raise the rear of the Jeep and secure it with jack stands.

2. Remove the Fuel Tank Straps:

   • Use a socket to remove the bolts securing the fuel tank straps.
   • Carefully lower the fuel tank slightly to access the fuel pump module.

Step 4: Remove the Old Fuel Pump Module

1. Disconnect Fuel Lines:

   • Use pliers to carefully disconnect the fuel lines attached to the pump.
   • Be prepared for some fuel spillage; have a cloth on hand to manage this.

2. Remove the Pump Module:

   • Use the fuel module ring removal tool to unscrew the retaining ring.
   • Carefully lift out the old fuel pump module from the tank.

Step 5: Install the New Fuel Pump Module

1. Prepare the New Pump:

   • Compare the new fuel pump module with the old one to ensure compatibility.

2. Install the New Module:

   • Place the new fuel pump module into the tank.
   • Secure it with the retaining ring using the fuel module ring removal tool.

3. Reconnect Fuel Lines:

   • Reattach the fuel lines, ensuring they are secure.

Step 6: Reinstall the Fuel Tank

1. Raise the Fuel Tank:

   • Carefully lift the fuel tank back into place.

2. Secure the Tank:

   • Reattach the fuel tank straps and tighten the bolts.

Step 7: Final Checks and Reconnection

1. Reconnect the Battery:

   • Reconnect the battery terminals.

2. Test the System:

   • Reinstall the fuel pump relay.
   • Turn the ignition to the 'ON' position without starting to prime the fuel system. Check for leaks.

3. Start the Engine:

   • Start the engine and check that it runs smoothly.

Conclusion

You have successfully replaced the fuel pump module in your Jeep Cherokee XJ. Regular maintenance of the fuel system can enhance performance and reliability. If you encounter issues or have further questions, consider consulting a professional or referring to your vehicle’s manual for additional guidance. Happy driving!