C 2500 Truck 2WD V8-5.7L VIN R (1997)
the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.
3.
Disconnect the negative battery cable.
4.
Disconnect the following electrical connectors:
^
High pressure lock-off (HPL) (1)
^
Fuel sending unit (FSU) (2)
Notice:
The manual valve opening tool may damage the main seat of the high pressure lock-off (HPL) if used improperly. Use this tool only when the HPL is
not in operation.
Important:
Venting of natural gas to the atmosphere may be prohibited in some areas. Before venting the CNG fuel tank, contact the local gas company to assure
that all local, state and federal regulations are observed.
5.
In order to prevent freeze damage to the fill line and the FSU, the tank fittings must be capped by performing the following steps:
5.1.
Remove the fuel sending unit (FSU).
5.2.
Install a fitting and cap (4) supplied from the J 42435 CNG Tank Venting Kit into the FSU port (3).
5.3.
Disconnect the fill line.
5.4.
Install a cap (1) supplied from the J 42435 onto the fill line port fitting (2).
