Engine Compartment Fuel Lines, Connection Diagram

Engine Compartment Fuel Lines, Connection Diagram

CAUTION!
When installing fuel lines and hoses, ensure there is clearance to other components or to body. Contact can cause leaks.





1 Test connection

• For cylinder bank 2.

• Tighten sealing plug to 27 Nm.

• Not available on all vehicles.

2 Fuel supply line

• From connection at fuel filter cover --> [ (Item 18) Fuel supply line ] Service and Repair.

• White or with white markings.

• Ensure seated tightly.

3 Fuel return line

• To connection at fuel filter cover --> [ (Item 17) Fuel return line ] Service and Repair.

• Blue or with blue marking.

• Ensure seated tightly.

4 Fuel pipe

• Secured to intake manifold of cylinder bank 2.

5 Fuel rail

• For cylinder bank 2.

6 Test connection

• For cylinder bank 1.

• Tighten sealing plug to 27 Nm.

7 Fuel rail

• For cylinder bank 1.

8 Tandem pump

• For cylinder bank 1.

• With vacuum pump.

• Tandem and fuel pump checking, refer to --> [ Tandem and Fuel Pump Checking ] Tandem and Fuel Pump Checking.

• Tandem and fuel pump, removing and installing, refer to --> [ Tandem and Fuel Pump ] Tandem and Fuel Pump.

• Must not be disassembled.

9 Fuel temperature sensor (G81)

• For cylinder bank 1 and 2.

10 Fuel Pump (FP)

• For cylinder bank 2.

• Tandem and fuel pump checking, refer to --> [ Tandem and Fuel Pump Checking ] Tandem and Fuel Pump Checking.

• Tandem and fuel pump, removing and installing, refer to --> [ Tandem and Fuel Pump ] Tandem and Fuel Pump.

• Must not be disassembled.