Tune Up And Torque Specifications 1991-1994 3.0L Ford Ranger

Here you'll find the essentials to tune-up your 1991, 1992, 1993, or 1994 3.0L Ford Ranger. You'll also find the cylinder head, intake manifold, and intake plenum manifold torque and tightening sequence specifications.

Contents of this tutorial at a quick glance:

  1. Ignition System Specifications.
  2. Fuel System Specifications.
  3. 1991: Serpentine Belt Diagram.
  4. 1992-4: Serpentine Belt Diagram.
  5. Intake Manifold Torque Specifications.
  6. Intake Manifold Plenum Torque Specifications.
  7. Cylinder Head Torque Specifications.
  8. Where To Buy The Tune Up Parts.

Ignition System Specifications

Firing Order And Cylinder ID: 1991, 1992, 1993, 1994 3.0L Ford Ranger

1994 was the last year model that the 3.0L V6 Ford Ranger used a mechanical distributor.

1991-1994: Spark Plug Cable Resistance
Ranger 7K (7000) Ohms for each 30 cm.
1991-1994: Spark Plug Air Gap
Ranger 0.042-0.046 inches (1.07-1.17 MM).
1991-1994: Base Ignition Timing
Ranger 10° BTDC (before top dead center).
NOTE: The inline SPOUT connector must be disconnected.
1991-1994: Original Equipment Spark Plug
Spark Plug Motorcraft AWSF-32P (OE)
Motorcraft SP413 (supercedes AWSF-32P)

Fuel System Specifications

1991-1994 3.0L V6 Ford Rangers use the EEC-IV electronic fuel injection system. This system uses a fuel injection computer with 60 pins.

Fuel pump is inside the gasoline tank.

1991-1994: Fuel Pressure With Key On Engine Off
Ranger 35-40 PSI (2.5-2.8 Kg/cm²).
Fuel Pressure With Key On Engine Running
Ranger 30-45 PSI (2.1-3.2 Kg/cm²).
1991-1994: Fuel Injector Resistance
Ranger 15-18 Ohms (individual resistance).
Location Of The Fuel Pump Inertia Switch
Ranger Passenger side, beneath glove box.