Tools Required

J 45878 Combustible Gas Detector

1. Remove the fuel tank cover. Refer to Fuel Tank Cover Replacement .
2. Relieve the CNG fuel system pressure. Refer to Fuel Pressure Relief .

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

3. Disconnect the negative battery cable.
4. Remove the tank valve boot cover nuts and the tank boot cover.
5. Disconnect the 3 electrical connectors.
6. Lower the rear seat.
7. Loosen the vent hose clamps at the tank and the HPR.



8. Pull the vent hose from the HPR.
9. Disconnect the HPL to HPR fuel line at the HPR.



10. Disconnect the HPL to HPR fuel line at the HPL.
11. Disconnect the HPL to the HPR fuel line.
12. Disconnect the PRD line from the HPL.
13. Remove the fuel lines and the vent hose as an assembly.

1. Install the PRD and the HPL to the HPR lines and the vent hose as an assembly.

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.

2. Connect the PRD and the HPL to HPR lines using new O-ring face seals. Lubricate the O-rings with petroleum jelly or the equivalent.

Tighten

•	Tighten the PRD line fitting to 37 N·m (27 lb ft).

•	Tighten the HPL to the HPR fuel line fittings to 24 N·m (18 lb ft).




3. Connect the 3 electrical connectors.
4. Connect the negative battery cable.

Tighten
Tighten the bolt to 15 N·m (11 lb in).

5. Start the engine. Inspect for CNG fuel leaks at each serviced fitting using the J 45878 .
6. Position the vent hose clamps.

Tighten
Tighten the vent hose clamps to 2 N·m (18 lb in).




7. Install the valve boot cover and the cover nuts.

Tighten
Tighten the valve boot cover nuts to 6 N·m (54 lb in).

8. Raise the rear seat.
9. Install the spare tire bracket and the spare tire bracket bolts.

Tighten
Tighten the spare tire bracket bolts to 27 N·m (20 lb ft).

10. Install the fuel tank cover. Refer to Fuel Tank Cover Replacement .