Here's a general outline. This is not a substitute for a proper repair manual specific to your year and engine. Always consult a repair manual for detailed instructions and diagrams specific to your vehicle. Variations exist depending on the engine (4.0L OHV, etc.).
Tools You'll Likely Need:
* Socket set (metric)
* Wrenches (metric)
* Screwdrivers (Phillips and flathead)
* Fuel pump pliers or special tool (to disconnect fuel lines)
* Torque wrench
* Jack and jack stands
* Safety glasses
* Gloves
* Fuel line disconnect tool
* Shop rags
* New fuel pump assembly (ensure it's the correct one for your vehicle)
* Possibly a fuel pressure gauge (to test after installation)
Steps (General Outline):
1. Safety First: Disconnect the negative battery cable.
2. Lower the Fuel Tank: This is usually the most challenging part. You'll need to access the fuel tank from underneath the vehicle. This usually involves:
* Supporting the vehicle securely on jack stands.
* Locating the fuel tank straps and bolts.
* Carefully lowering the fuel tank. You might need to disconnect the fuel filler neck and vent lines. Be prepared for some fuel spillage; use absorbent materials.
3. Disconnect Fuel Lines and Electrical Connector:
* Carefully use fuel line disconnect tools to separate the fuel lines from the fuel pump assembly.
* Disconnect the electrical connector to the fuel pump. You may need to depress a clip or release a lever.
4. Remove the Fuel Pump Assembly: The fuel pump is usually located inside the fuel tank. You may need to remove a retaining ring or access cover to reach it. This often involves removing the fuel sending unit assembly which is usually attached to the fuel pump.
5. Install the New Fuel Pump Assembly:
* Carefully install the new fuel pump assembly, making sure the float and the sending unit are correctly positioned.
* Reinstall the retaining ring or cover.
6. Reconnect Fuel Lines and Electrical Connector: Make sure the fuel lines are securely connected and that the electrical connector is properly seated. Double-check for leaks.
7. Raise the Fuel Tank: Carefully raise the fuel tank back into its position and secure it with the straps and bolts.
8. Reconnect Battery Cable: Reconnect the negative battery cable.
9. Test the System: Crank the engine to ensure the fuel pump is working. Listen for the "whirr" sound of the pump priming. You may need to check for leaks around the fuel lines and connections.
Important Considerations:
* Fuel Pressure: Some mechanics recommend checking the fuel pressure after the replacement to ensure proper function.
* Fuel Tank Pressure: The tank may be under slight pressure. Release it cautiously before disconnecting any lines.
* Repair Manual: A repair manual specific to your 1993 Ford Explorer is *essential*. This outline provides a general overview, but details may vary significantly.
* Professional Help: If you're uncomfortable performing this repair yourself, take it to a qualified mechanic. Improperly handling fuel lines can be dangerous.
This procedure is a general guideline. Always refer to a repair manual specific to your 1993 Ford Explorer for precise instructions and safety precautions. Improper installation can lead to vehicle damage and potential injury.
