Tubes-Fuel Drain: Description

Fig 1: FUEL SYSTEM COMPONENTS

Courtesy of DAIMLERCHRYSLER CORP.

1 - FUEL INJECTOR

2 - FUEL PRESSURE SOLENOID

3 - FUEL RETURN TO FILTER

4 - FUEL RETURN TO INJECTION PUMP

5 - FUEL RAIL

6 - HIGH PRESSURE FUEL LINE FROM PUMP TO RAIL

7 - FUEL PRESSURE SENSOR

8 - HIGH PRESSURE LINE FROM RAIL TO INJECTOR

9 - FUEL DRAIN TUBES

The fuel drain tubes (9) connect to the top of all four injectors (1). See Fig 1. These tubes are used to return unused fuel from the fuel injectors (1) to the fuel filter.