Fuel Rail: Description and Operation

3.0L Unleaded Gasoline Shown, 3.0L Flexible Fuel (FF) Similar:

WARNING: FLEX FUEL VEHICLES' FUEL SUPPLY MANIFOLD COMPONENTS ARE STRICTLY METHANOL AND ETHANOL COMPATIBLE. DO NOT REPLACE WITH COMPONENTS NOT DESIGNED FOR METHANOL COMPATIBILITY, OR POSSIBLE DAMAGE OR PERSONAL INJURY MAY OCCUR.

The fuel injection supply manifold delivers high-pressure fuel from the vehicle fuel supply line to the six fuel injectors. The fuel injection supply manifold consists of:
- an integrally molded fuel pressure regulator cup with retaining clip.
- two molded thermoplastic composite tubes with one fuel injector connector for each fuel injector.
- a fuel pressure relief valve for diagnostic testing or field service fuel system pressure bleed-down.
- mounting attachments which locate the fuel injection supply manifold and provide fuel injector retention.