One problem related to fuel pump has been reported for the 2004 Lexus LS430. The most recently reported issues are listed below.
The contact owns a 2004 Lexus Ls430. While driving approximately 15 mph, the vehicle began to hesitate while accelerating and suddenly stalled. The vehicle was towed to an independent mechanic. The mechanic stated there was a failure with the fuel pump which would have to be replaced. The vehicle was not repaired. There was a recall under NHTSA campaign id number: 04v295000 (fuel system, gasoline:delivery:fuel pump) that could have been related to the failure. The manufacturer was made aware of the failure and advised that the VIN was not included in the recall. The approximate failure mileage was 100,200.