Fuel Pressure

WARNING: This page does not describe the selected car, but rather 24 other vehicles, including the 1998 Mercury Villager, 1998 Mercury Tracer, 1998 Mercury Sable, 1998 Mercury Mystique, and 1998 Mercury Mountaineer. However, it is still accessible from the selected car via links, so may be relevant.

FUEL PRESSURE SPECIFICATIONS

Engine

psi (kg/cm² )

Natural Gas Vehicle

⁽¹⁾ 80-120 (5.6-8.4)

Diesel

Diesel Models - Except 1998 1/2 Econoline

⁽²⁾ 30-80 (2.1-5.6)

1998 1/2 Econoline

⁽³⁾

Gasoline

Continental, Escort & Tracer

⁽⁴⁾ 35-55 (2.5-3.9)

Contour (2.5L), Cougar (2.5L) & Mystique (2.5L)

⁽⁴⁾ 45-60 (3.2-4.2)

Ranger

Gasoline

⁽⁴⁾ 56-72 (3.9-5.1)

Flex Fuel

⁽⁴⁾ 47-63 (3.3-4.4)

Villager

⁽⁵⁾ 34 (2.4)

All Others

⁽⁴⁾ 30-45 (2.1-3.2)

⁽¹⁾	With engine speed at 2500 RPM.

⁽²⁾	Measure at regulator block, at wide open throttle and under full load.

⁽³⁾	Vehicle is equipped with an electric fuel pump. With ignition on, measure fuel pressure at cylinder head. Fuel pressure should be 30 psi (2.1 kg/cm² ). Measure at outlet side of fuel pump, at wide open throttle and under full load. Fuel pressure should be 30-80 psi (2.1-5.6 kg/cm² ).

⁽⁴⁾	With key on and engine off.

⁽⁵⁾	With engine running.