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HOMESERVICE MANUALSMERCURY1991TRACER BASE, 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 166 (FUEL PRESSURE SPECIFICATIONS)FUEL SYSTEMSFUEL PRESSURE
1991 Mercury Tracer Base, 4D Sedan, Automatic

Fuel Pressure

1991 Mercury Tracer Base, 4D Sedan, AutomaticSECTION Fuel Pressure
WARNING: This page does not describe the selected car, but rather 29 other vehicles, including the 1994 Mercury Villager, 1994 Mercury Tracer, 1994 Mercury Topaz, 1994 Mercury Sable, and 1994 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
1994 FUEL PRESSURE SPECIFICATIONS (CARS - EEC- GASOLINE)

Engine (1) KOER psi (kg/cm2 ) KOEO psi (kg/cm2 )
1.3L (2) 30-38 (2.1-2.7) (3)(4)
1.6L (5) 27-34 (1.9-2.4) (6) 64-85 (4.5-6.0)
1.8L (7) 31-38 (2.2-2.7) (4) 64-85 (4.5-6.0)
2.0L (8) 30-38 (2.1-2.7) (4) 64-92 (4.5-6.5)
2.5L (8) 30-35 (2.1-2.5) (4) 72-92 (5.1-6.5)
3.0L 35-38 (2.5-2.7) 40-43 (2.8-3.0)
(1) Specification is with engine running and vacuum hose connected to fuel pressure regulator.
(2) Fuel pressure should be 38-45 psi (2.7-3.2 kg/cm2 ) with engine running and vacuum hose disconnected from fuel pressure regulator.
(3) Fuel pressure should be 50 psi (3.5 kg/cm2 ) or more.
(4) Fuel pressure should be 38-45 psi (2.7-3.2 kg/cm2 ) with ignition switch off, engine not running and a jumper wire is connected between ground and fuel pump terminal at data link connector.
(5) Fuel pressure should be 35-43 psi (2.5-3.0 kg/cm2 ) with engine running and vacuum hose disconnected from fuel pressure regulator.
(6) Fuel pressure should be 38-42 psi (2.7-3.0 kg/cm2 ) with ignition switch off, engine not running and a jumper wire is connected between ground and fuel pump terminal at data link connector.
(7) Fuel pressure should be 40-49 psi (2.8-3.4 kg/cm2 ) with engine running and vacuum hose disconnected from fuel pressure regulator.
(8) Fuel pressure should be 38-45 psi (2.7-3.2 kg/cm2 ) with engine running and vacuum hose disconnected from fuel pressure regulator.
1994 FUEL PRESSURE SPECIFICATIONS (EEC-V)

Engine KOER psi (kg/cm2 ) KOEO psi (kg/cm2 )
3.0L Ranger (1) 35-45 (2.5-3.2)
3.8L Mustang (1) 35-45 (2.5-3.2)
4.6L Thunderbird (1) 35-45 (2.5-3.2)
4.6L Cougar (1) 35-45 (2.5-3.2)
(1) Information is not available from manufacturer.
1994 FUEL PRESSURE SPECIFICATIONS (CARS - EEC-IV - GASOLINE)

Engine KOER psi (kg/cm2 ) KOEO psi (kg/cm2 )
2.3L HSC MFI 45-60 (3.2-4.2) 50-60 (3.5-4.2)
3.0L SHO SFI 28-33 (2.0-2.3) 30-45 (2.1-3.2)
3.8L SC SFI 28-54 (2.0-3.8) 35-45 (2.5-3.2)
All Others 35-45 (2.5-3.2) 35-45 (2.5-3.2)
1994 FUEL PRESSURE SPECIFICATIONS (TRUCKS - EEC-IV - GASOLINE)

Engine KOER psi (kg/cm2 ) KOEO psi (kg/cm2 )
4.9L MFI 45-60 (3.2-4.2) 50-60 (3.5-4.2)
All Others 28-45 (2.0-3.2) 35-45 (2.5-3.2)
1994 FUEL PRESSURE SPECIFICATIONS (TRUCKS - 7.3L DIESEL)

Application psi (kg/cm2 )
VIN K & M
At Fuel Filter Inlet (1) 2 (.14)
At Fuel Filter Outlet (2) 1 (.07)
At Fuel Return Line (2) 2 (.14)
VIN F
Fuel Line Pressure (3) 30-70 (2.1-4.9)
(1) Measured at idle.
(2) Measured at 3300 RPM.
(3) Direct Injection (DI) system. Pressure is measured at regulator block. Specification is with engine at high idle/full load.
1994 FUEL PRESSURE SPECIFICATIONS (LPG)

Engine psi (kg/cm2 )
All Models 1.25-1.5 (.09-.11)
RENDER: 1.0x

NO RELATED

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  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
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