Fuel Tubes & Fittings
WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, and 1995 Dodge Caravan. However, it is still accessible from the selected car via links, so may be relevant.
Due to the high-pressure requirements of CNG system, special stainless steel, SAE straight-thread "O" ring, double-ferrule, compression-type fuel tube fittings are used. These will connect all fuel tubes and components on high-pressure side of system (inlet side of fuel pressure regulator). High-pressure stainless steel, seamless fuel tubes are also used.
Standard NPT and 45-degree fittings are used on low-pressure side of system (outlet side of fuel pressure regulator).
Fittings with "O" rings are used on the high-pressure side of system at following places.
- Main Fuel Tube-To-Rear Cylinder Fuel Control Valve (90-Degree Fitting)
- Main Fuel Tube-To-Side Cylinder Fuel Control Valve (Straight Fitting
- Connecting Fuel Tube Between Rear Cylinder Control Valves (Straight Fittings)