Fuel System Identification
WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2001 Mercury Sable, 2001 Mercury Mountaineer, 2001 Mercury Grand Marquis, 2001 Mercury Cougar, and 2001 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
- Electronic Returnless Fuel System
Electronic Returnless Fuel System (ERFS) does not return fuel to fuel tank by means of a fuel return line. Vehicle does not incorporate a fuel pressure regulator. Fuel pressure is controlled by varying fuel pump speed through Fuel Pump Driver Module (FPDM). - Mechanical Returnless Fuel System
Mechanical Returnless Fuel System (MRFS) does not return fuel to fuel tank by means of a fuel return line. Excess fuel is returned by fuel pressure regulator mounted on fuel pump module located in fuel tank. - Returnable System
Fuel is returned to fuel tank by means of return line from fuel rail.
FUEL SYSTEM IDENTIFICATION
| Application | Fuel System |
|---|---|
| Continental, Cougar, Escape 2.0L, Escort, Focus, LS & Mustang | Electronic Returnless |
| Econoline 5.4L (Gasoline), Escape 3.0L, Excursion 5.4L, Expedition 5.4L, Explorer, Explorer Sport, Explorer Sport Trac, Mountaineer, Navigator 5.4L, Pickup 5.4L (Gasoline), Ranger, Sable & Taurus | Mechanical Returnless |
| All Others | Returnable |