1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
2. Disconnect the chassis evaporative emission (EVAP), fuel feed, and return pipes (1) at the engine compartment EVAP, fuel feed, and return pipes.
3. Remove the transmission. Refer to Transmission Replacement in Manual Transmission - NV 3500.
4. Remove the EVAP/fuel pipe retainer clip (2) from the left cylinder head.



5. Disconnect the EVAP pipe (1).
6. Remove the EVAP pipe from the retainers.

Caution: In order to reduce the risk of fire and personal injury, before connecting fuel pipe fittings, always apply a few drops of clean engine oil to the male pipe ends.

1. Install the new O-ring seals on the engine compartment EVAP, fuel feed, and the return pipes.
2. Connect the chassis EVAP, fuel feed, and return pipes (1) to the engine compartment fuel feed and return pipes.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

3. Install the EVAP and fuel pipes into the retainer clip (2).
4. Install the retainer clip bolt.

Tighten
Tighten the fuel pipe retainer clip bolt to 30 N·m (22 lb ft).




5. Connect the EVAP pipe (1).
6. Install the transmission. Refer to Transmission Replacement in Manual Transmission - NV 3500.
7. Tighten the fuel filler cap.
8. Connect the negative battery cable.
9. Inspect for leaks.

9.1.	Turn ON the ignition for 2 seconds.

9.2.	Turn OFF the ignition for 10 seconds.

9.3.	Turn ON the ignition.

9.4.	Inspect for fuel leaks.