Fuel Lines
Fuel Lines
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Front Fuel Lines, Aft-of-Axle Fuel Tank
NOTE: Vehicle body removed from art for clarity.
Item Part Number Description
1. W707410 Front fuel supply tube and front fuel vapor tube bracket-to-transmission bolt - 48 Nm (35 lb-ft)
2. - Front fuel supply tube-to-fuel rail quick connect coupling (part of 9B325)
3. - Front fuel vapor tube-to-Evaporative Emission (EVAP) canister purge valve quick connect coupling (part of 9B325)
4. - Center fuel supply tube-to-front fuel supply tube quick connect coupling (part of 9L291)
5. - Front fuel vapor tube-to-center fuel vapor tube quick connect coupling (part of 9B325)
6. 9A317 Front fuel supply tube and fuel vapor tube position retainer (2 required)
7. 9B325 Front fuel supply tube and fuel vapor tube assembly
Center Fuel Lines, Aft-of-Axle Fuel Tank
NOTE: Vehicle body removed from art for clarity.
Item Part Number Description
1. W520102 Center fuel supply tube, fuel vapor tube and brake fluid tube assembly position retainer nut - 9 Nm (80 lb-in) (number required varies with vehicle wheelbase)
2. - Center fuel supply tube, fuel vapor tube and brake fluid tube assembly pushpin type position retainer (part of 9L291)
3. 9L291 Center fuel supply tube, fuel vapor tube and brake fluid tube assembly
4. - Center brake tube-to-rear brake hose fitting - 18 Nm (159 lb-in) (part of 9L291)
5. - Rear fuel vapor hose-to-center fuel vapor tube quick connect coupling (part of 9S296)
6. - Rear fuel supply hose-to-center fuel supply tube quick connect fitting (part of 9S296)
7. - Center brake tube-to-front brake tube fitting - 18 Nm (159 lb-in) (part of 9L291)
8. - Center fuel supply tube-to-front fuel supply tube quick connect coupling (part of 9L291)
9. - Front fuel vapor tube-to-center fuel vapor tube quick connect coupling (part of 9B325)
Rear Fuel Lines, Aft-of-Axle Fuel Tank
NOTE: Vehicle body removed from art for clarity.
Item Part Number Description
1. 9A317 Rear fuel supply and fuel vapor hose assembly position retainers (2 required)
2. 9S296 Rear fuel supply and fuel vapor hose assembly
3. - Rear fuel vapor hose-to-center fuel vapor tube quick connect coupling
4. - Rear fuel supply hose-to-center fuel supply tube quick connect coupling
Fuel Lines, Midship Fuel Tank
NOTE: Vehicle body removed from art for clarity.
Item Part Number Description
1. 9B325 Front fuel supply and front fuel vapor tube assembly
2. 9L291 Rear fuel supply tube, rear fuel vapor tube and brake tube assembly
3. W520102 Rear fuel supply tube, rear fuel vapor tube and brake tube assembly position retainer nuts
4. - Fuel vapor tube-to-EVAP canister purge valve quick connect coupling (part of 9B325)
5. - Fuel supply tube-to-fuel rail quick connect coupling (part of 9B325)
6. W707410 Fuel supply tube and fuel vapor tube bracket-to-transmission bolt
7. - Rear brake tube fitting-to-front brake tube fitting (part of 9L291)
8. - Rear brake tube fitting-to-front brake tube fitting (part of 9L291)
9. - Rear brake tube fitting-to-rear brake hose (part of 9L291)
10. - Rear brake tube fitting-to-rear brake hose (part of 9L291)
Removal and Installation
All fuel lines
1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to vehicle jacking and lifting.
2. Release the fuel system pressure. For additional information, refer to fuel delivery and air induction.
Front fuel lines
3. Disconnect the front fuel supply tube-to-fuel rail quick connect coupling. For additional information, refer to fuel delivery and air induction.
4. Disconnect the front fuel vapor tube-to-Evaporative Emission (EVAP) canister purge valve quick connect coupling. For additional information, refer to fuel delivery and air induction.
5. Detach the Heated Oxygen Sensor (HO2S) electrical connector retainer and the wiring harness retainer from the fuel supply tube and fuel vapor tube bracket.
6. Remove the front fuel supply tube and front fuel vapor tube bracket bolt from the transmission bellhousing.
-To install, tighten to 48 Nm (35 lb-ft).
7. Remove the 3 LH catalytic converter heat shield bolts and position the heat shield aside.
8. Detach the 2 front fuel supply tube and front fuel vapor tube position retainers from the frame.
9. Remove the front fuel supply tube and front fuel vapor tube assembly.
Midship fuel tank, rear fuel lines
10. Remove the fuel tank. For additional information, refer to Fuel Tank � Midship in this section.
11. Disconnect the 2 rear brake tube fitting-to-rear brake hose connections.
-Calculate the correct torque wrench setting for the following torque. Refer to the Torque Wrench Adapter Formulas in the Appendix.
-To install, tighten to 18 Nm (159 lb-in).
12. Detach the 3 brake tube position retainers from the frame rail.
13. Disconnect the 2 rear brake tube fitting-to-front brake tube fitting connections.
-Calculate the correct torque wrench setting for the following torque. Refer to the Torque Wrench Adapter Formulas in the Appendix.
-To install, tighten to 18 Nm (159 lb-in).
14. Disconnect the rear fuel supply tube-to-front fuel supply tube quick connect coupling. For additional information, refer to fuel delivery and air induction.
15. Disconnect the rear fuel vapor tube-to-front fuel vapor tube quick connect coupling. For additional information, refer to fuel delivery and air induction.
16. Remove the 2 position retainer nuts and the rear fuel supply tube, rear vapor tube and brake tube assembly from the vehicle.
-To install, tighten to 9 Nm (80 lb-in).
Aft of axle tank, center fuel lines
17. Disconnect the center brake tube fitting-to-front brake tube fitting connection.
-Calculate the correct torque wrench setting for the following torque. Refer to the Torque Wrench Adapter Formulas in the Appendix.
-To install, tighten to 18 Nm (159 lb-in).
18. Disconnect the center fuel supply tube-to-front fuel supply tube quick connect coupling. For additional information, refer to fuel delivery and air induction.
19. Disconnect the front fuel vapor tube-to-center fuel vapor tube quick connect coupling. For additional information, refer to fuel delivery and air induction.
20. Disconnect the center brake tube fitting-to-rear brake hose connection.
-Calculate the correct torque wrench setting for the following torque. Refer to the Torque Wrench Adapter Formulas in the Appendix.
-To install, tighten to 18 Nm (159 lb-in).
21. Disconnect the rear fuel vapor hose-to-center fuel vapor tube quick connect coupling.
22. Disconnect the rear fuel supply hose-to-center fuel supply tube quick connect coupling.
23. NOTE: Position retainer quantities will vary by wheelbase.
-Remove the center fuel supply tube, fuel vapor tube and brake fluid tube assembly position retainer nuts.
-To install, tighten to 9 Nm (80 lb-in).
24. Detach the pushpin type position retainer and remove the center fuel supply tube, fuel vapor tube and brake fluid tube assembly.
Aft of axle tank, rear fuel lines
25. Remove the fuel tank. For additional information, refer to Fuel Tank � Aft-of-Axle in this section.
26. Disconnect the center brake tube fitting-to-rear brake hose connection.
-To install, tighten to 18 Nm (159 lb-in).
27. Disconnect the rear fuel vapor hose-to-center fuel vapor tube quick connect coupling.
28. Disconnect the rear fuel supply hose-to-center fuel supply tube quick connect coupling.
29. Detach the 2 position retainers and remove the rear fuel supply and fuel vapor hose assembly.
All fuel lines
30. To install, reverse the removal procedure.
31. If necessary, bleed the brake system. For additional information, refer to brakes and traction control.