Before you begin:
* Safety First: Disconnect the negative battery cable. Work in a well-ventilated area, away from any open flames or sparks. Fuel is highly flammable.
* Gather Tools: You'll need jack stands, jack, socket set (including various sizes), wrenches, fuel line disconnect tools, possibly a fuel pump removal tool, and safety glasses/gloves.
* Obtain a Repair Manual: A Haynes or Chilton manual will provide detailed diagrams and instructions.
General Steps (These are general and may vary slightly):
1. Prepare the Vehicle: Secure the vehicle on jack stands after safely raising it with a jack. Consult your owner's manual for proper jack points.
2. Disconnect the Fuel Lines: Locate the fuel lines connected to the fuel tank. You'll likely need specialized fuel line disconnect tools to avoid damaging the lines. These tools help you separate the quick-connect fittings safely. Be prepared for some fuel spillage; have rags ready.
3. Disconnect the Electrical Connector: Disconnect the electrical connector leading to the fuel pump.
4. Lower the Fuel Tank: There are straps securing the fuel tank. You'll need to locate and carefully remove these straps. This often involves removing some bolts or fasteners. The tank may be heavy, so be prepared to support its weight safely. Lowering straps may be adjustable, allowing for easier tank removal.
5. Access the Fuel Pump: Once the fuel tank is lowered enough, you should gain access to the fuel pump assembly. This assembly is typically located on top of the tank.
6. Remove the Fuel Pump Assembly: This step often involves removing a retaining ring or cover to access the pump itself. You may need a specialized fuel pump removal tool for easier removal.
7. Replace the Fuel Pump (if needed): Carefully install the new fuel pump, ensuring it's properly seated.
8. Reassembly: Reverse the steps above, carefully reinstalling the fuel pump assembly, tank straps, fuel lines, and electrical connector. Be sure to tighten all fasteners to the correct torque specification (found in your repair manual).
9. Reconnect the Battery: After reassembly, reconnect the negative battery cable.
10. Prime the Fuel System (May be needed): Start the vehicle and listen for the fuel pump to prime. You may need to crank the engine for a few seconds before it starts.
Important Considerations:
* Fuel Pressure: There may be residual fuel pressure in the system. Refer to your repair manual for any pressure release procedures.
* Fuel Tank Weight: The fuel tank can be quite heavy when full. Be extremely careful when lowering it.
* Safety: Always prioritize safety. Working with fuel is dangerous; handle it with care.
This is a complex repair. If you're not comfortable performing this procedure, it is strongly recommended to take your Jeep to a qualified mechanic. Incorrectly performing this repair could lead to serious injury or vehicle damage.
