1. Locate the Fuse Box and Relay Center: The 1994 Plymouth Voyager has multiple fuse boxes and relay centers. You'll need to consult your owner's manual for the exact locations. Generally, you'll find one under the hood and possibly one inside the vehicle (often under the dashboard). The owner's manual will show a diagram of the fuse boxes, identifying each fuse and relay by number and function.
2. Identify the Fuel Pump Fuse and Relay: Your owner's manual is crucial here. The fuel pump fuse and relay might be labeled clearly ("Fuel Pump," "EFI," or similar), or you may need to cross-reference the diagram with the description of the fuel pump circuit. The manual will specify the amperage rating of the fuse.
3. Inspect the Fuse:
* Visual Inspection: Carefully remove the fuse using the fuse puller provided in many fuse boxes. Examine the fuse element (the thin wire inside). If the wire is broken or melted, the fuse is blown and needs to be replaced with a new one of the *same amperage rating*. Never replace a fuse with a higher amperage fuse.
4. Inspect the Relay:
* Visual Inspection: Relay's are usually square or rectangular. Look for any obvious physical damage like burn marks or cracks.
* Relay Test (Optional but Recommended): While you can visually inspect, a better method is to test the relay with a multimeter. There are several ways to test a relay depending on your multimeter and understanding of relay function. The simplest method is to check continuity between the terminals when energized and de-energized, and compare it to the specifications on the relay itself. There are many online resources and videos explaining how to properly test a relay with a multimeter. If you're unsure, skip this step and replace the relay if suspect.
5. Replace the Blown Fuse or Faulty Relay:
* Fuse: Replace the blown fuse with a new one of the *same amperage rating*.
* Relay: Replace the faulty relay with a new one of the *same type*. Make sure the new relay's pin configuration matches the old one.
6. Reconnect the Negative Battery Cable: After replacing the fuse or relay, reconnect the negative battery cable.
7. Test the Fuel Pump: Turn the ignition key to the "ON" position (without starting the engine). You should hear a brief humming sound from the fuel pump. This sound indicates that the fuel pump is receiving power. If you don't hear the humming sound, there might be another problem in the circuit (wiring, fuel pump motor itself, etc.). *Be aware, the humming sound may be brief and quiet.*
Important Notes:
* Safety First: Always disconnect the negative battery cable before working on electrical components.
* Owner's Manual: Your owner's manual is your best resource for fuse and relay locations and diagrams.
* Professional Help: If you're uncomfortable working with electrical components, it's best to take your vehicle to a qualified mechanic.
* Fuel Pump Issues: A blown fuse or faulty relay might indicate a larger problem with the fuel pump or its wiring. If you continue to have fuel delivery issues even after replacing the fuse and relay, further diagnosis will be required.
This information is for guidance only. Always refer to your vehicle's owner's manual for specific instructions and safety precautions.
