Valve, Fuel Cylinder Control: Description
WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
THE MANUAL SHUT-OFF VALVES ARE NON SERVICEABLE. DO NOT REMOVE THE MANUAL SHUT-OFF VALVE FROM THE CNG CYLINDER TANKS. REMOVAL OF THE VALVE MAY CAUSE ONE OR MORE OF THE FOLLOWING: THE COMPRESSED GAS IN THE CYLINDER TANK MAY RUSH OUT RAPIDLY ENOUGH TO CAUSE THE VALVE OR THE CYLINDER TANK TO BECOME A PROJECTILE: MAY CAUSE A FLAME AT THE TANK OR A FIRE TO OTHER NEAR BY COMBUSTIBLES; MAY CAUSE AN EXPLOSION OF THE CNG CYLINDER TANK; MAY DISPLACE OR DEPLETE AIR IN A CONFINED WORK SPACE; OR MAY CAUSE LEAKED CNG TO COLLECT IN CEILING LIKE AREAS IN SUFFICIENT QUANTITIES AND MIXTURE TO BECOME COMBUSTIBLE OR EXPLOSIVE.
The shut down solenoids are located in the manual valves on the CNG cylinder tanks.