#1993 FORD EXPLORER FUEL PUMP REPLACEMENT MANUALS#

Usually, owner's manuals will have numbers listed next to the fuel pump relay for you to find the number on the fuse box.

#1993 FORD EXPLORER FUEL PUMP REPLACEMENT MANUAL#

Play attention to how the relay comes out as the new one needs to go in the same way.Īlso, if your fuse box cover does not have any diagrams on it, you can refer to your owner's manual for the engine compartment fuse box diagram. Step 9: Remove the fuel pump relay from the fuse box. Once you open up the fuse box, you can use the diagram on the fuse box cover to find the fuse to the fuel pump relay. Step 8: Using the diagram on the fuse box cover, locate the fuel pump relay.

Note: Some fuse boxes are held on with hex screws or bolts and require to use a ratchet to remove them.

Step 7: Locate the fuse box in the engine compartment. Ground cable off of the battery’s negative post disabling the power to the fuel pump and Step 6: Open the vehicle’s hood to disconnect your If you do not have a nine volt battery saver, that is okay. Your computer live and keep your setting current in the vehicle.

#1993 FORD EXPLORER FUEL PUMP REPLACEMENT INSTALL#

Step 5: Install a nine volt battery saver into your cigarette lighter. In this case, the wheel chocks will be around the front tires since the rear of the vehicle will be lifted up.Įngage the parking brake to the lock the rear tires from moving. Step 4: Place wheel chocks around the tires. In park (for automatics) or in 1st gear (for manuals). Step 3: Park your vehicle on a flat, hard surface. When the indicator light goes out, then there is oil pressure. On some vehicles, there will only be an oil light indicator. Listen for the fuel pump to actuate.Īlso, listen to the fuel pump relay for any buzzing or clicking noise. Most fuel pump relays are located in the engine compartment inside the fuse box. Ratchet with metric and standard sockets.There are several engine light codes related to the fuel gauge sender: A fuel pressure sensor lets the computer know if the fuel pressure has not created any pressure during cranking operation.

If the fuel pump relay fails, the engine management system records thisĮvent. If you hear no humming from the fuel pump but the car eventually starts and runs fine, then the fuel pump relay has failed. This can make the cranking of the engine last longer than normal. When this relay fails the engine will start after the starter motor has pumped up sufficient oil pressure to send electricity to the fuel pump and run it. If this sound is not audible, it is an indication that the pump relay may not be functioning as it should. As the vehicle’s ignition is turned on, the pump relay produces a humming noise. When the vehicle’s ignition is initiated, a magnetic coil with an open contact is activated the contact then closes an electric circuit in an electronic mechanism and the fuel pump relay is ultimately activated. Until oil pressure is created and in turn generates electricity to run the fuel pump, the pump cannot provide fuel to the car’s engine. This electricity is created by an oil pressure device in the engine. The pump that delivers fuel to the engine while the engine is running requires electricity in order to operate. Without this relay, the engine would not receive fuel while starting.

The location can be different, however, in some other cars. The fuel pump relay is usually located in the vehicle’s long black box with the other relays and fuses.

Mercedes benz ld dtc p0088ff.The fuel pump relay helps your vehicle start the car by pressurizing the fuel system for the first few seconds before the oil pressure’s level takes over.

1993 ford explorer fuel pump replacement