1. Fuel Pump:
* Listen for the pump: Turn the ignition key to the "on" position (without starting the engine). You should hear a brief humming sound from the fuel pump in the fuel tank. If you don't hear it, the pump may be faulty, the fuel pump relay is bad, or there's a power issue to the pump.
* Check the fuel pump relay: Locate the fuel pump relay (your owner's manual or online resources will help you find its location). Swap it with a known good relay of the same amperage rating (be careful to note which relay is which). If the problem goes away, you've likely found the culprit.
* Check the fuel pump fuse: Similarly, inspect the fuse associated with the fuel pump. Replace if necessary.
* Check fuel pressure: This requires a fuel pressure gauge connected to the fuel rail. The pressure should be within the specifications listed in your owner's manual. Low or no pressure indicates a problem with the pump, filter, or pressure regulator.
2. Fuel Filter:
* Inspect the fuel filter: A clogged fuel filter will restrict fuel flow. It's located somewhere along the fuel line; consult your owner's manual for its location. If it's visibly dirty or damaged, replace it.
3. Fuel Rail and Injectors:
* Check the fuel rail pressure (as mentioned above): Low pressure in the fuel rail suggests a problem *before* the rail, such as a pump or filter issue. Pressure in the rail, but no fuel at the injectors points to a problem *at* or *after* the fuel rail.
* Inspect fuel lines: Check all fuel lines for leaks, cracks, or kinks.
* Inspect fuel injectors: Although less common, injectors can become clogged or fail. A professional diagnosis might be necessary to test the injectors to determine if they're the problem.
4. PCM (Powertrain Control Module):
* Possible PCM malfunction: The PCM controls the fuel pump and injectors. A faulty PCM can cut off fuel supply. Diagnosing this usually requires a scan tool capable of reading PCM codes.
5. Other Considerations:
* Fuel tank: Check the fuel level. A completely empty tank is an obvious reason for no fuel at the injectors!
* Security system: Some vehicles have security systems that can shut down fuel delivery if the system detects tampering or a problem.
Recommendations:
* Start with the easiest checks first: Listen for the fuel pump, check the fuses and relays.
* Check fuel pressure: This is crucial for diagnosing the problem.
* Consult a repair manual: A repair manual specific to your 2000 Chrysler Voyager will provide diagrams, specifications, and detailed troubleshooting steps.
* Seek professional help: If you're not comfortable working on your vehicle's fuel system, it's best to take it to a qualified mechanic. Improperly handling fuel systems can be dangerous.
Remember safety first when working with fuel systems. Work in a well-ventilated area and avoid open flames or sparks.
