Questions and Answers

Voyager Fuel Pump Q. I have a 1991 Plymouth Voyager with a 3.3 litre engine that will not start due to no fuel at the injectors. The pump appears to be non-functional. I have checked the wires running to the pump and I am puzzled. There is no current in the main line. I checked the wire from the computer to the auto shut down relay switch and have 11.58 volts.

I am getting continuity touching the fuel pump wire (no power to it) and any ground on the vehicle. Is this normal? Also, is there a fuel pump shut off switch anywhere on the vehicle. I am told there is a fusible link on the driver's fender which may be the culprit. This happened suddenly without prior warning.

Shelley and Jay

A. I would check for power at the dark green/black wire at the four pin fuel pump connector at the fuel tank. If there is power there when you crank the engine. You should have power there. If you do, check the black ground wire for continuity. If both check out, you have a bad fuel pump.

If you don't have power to the dg/bk wire, check the large 16 pin connector under the left side dash. It is a black connector. Check for power at the dg/bk wire there. If you have power, you have a broken wire between there and the fuel pump.

If you have power there, go to the Auto Shutdown Relay (ASD) and check the dg/bk wire there for power while cranking. If you have power, then the wiring between the fuel pump and the ASD is open.

If you don't, you probably have a bad ASD relay. If the new relay doesn't work, then you have a problem with the computer.

Additional Information provided courtesy of ALLDATA