Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD1985RANGER 4WD L4-140 2.3L DSL TURBOREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSELECTRICAL/ELECTRONIC/FUEL INDUCTION - GLOSSARYF
1985 Ford Ranger 4WD L4-140 2.3L DSL Turbo
F
1985 Ford Ranger 4WD L4-140 2.3L DSL TurboSECTION F
FAILURE MODE EFFECTS MANAGEMENT (FMEM) STRATEGY - EEC IV strategy designed to reduce the adverse effects that may be caused by an EEC system sensor failure. Should a sensor fail, the ECA substitutes a good sensor signal in its place. This allows the engine to keep running so that the vehicle can be driven to the dealer for service.
FIELD (A/C) - A coil with many turns of wire located behind the clutch rotor. Current passing through this coil sets up a magnetic field and causes the clutch to engage.
FIELD - Magnetic lines of force orientated from north to south as in a magnetic field. A magnetic field may be natural as with a permanent magnet or created when electricity flows in a wire.
FIELD COIL - A coil of insulated wire usually wound around an iron core. Current flowing in the coil produces a magnetic field. Also called "field winding." FILAMENT - A resistance in a light bulb which glows and produces light when a current is forced through it.
FIRING LINE - The total amount of voltage being expended through the secondary circuit.
FLUX - Electric or magnetic lines of force passing or flowing in a magnetic field. Also, material used to cause joining metal to adhere to both parts to be joined.
FOUR-WAY FLASHERS - See "hazard warning system."
FREE ELECTRON - Electrons that are not bound to a certain atom but are free to move around from atom to atom.
FREQUENCY - Refers to the number of times something repeats itself (such as a signal from a sensor) in one second.
FUEL PUMP MONITOR (FPM) - Input used to monitor the fuel pump secondary circuit.
FUEL PUMP RELAY (FP) - Relay or its control line. Relay is controlled by ECA processor. Supplies power to electric fuel pump of EFI/CFI system.
FUSE - A metal link in a circuit that melts when the current flow is excessive, thereby breaking the circuit.
FUSE BLOCK - An assembly concentrating most or all of a car's fuses at one point.
FUSIBLE LINK - A wire or bar designed to melt if more than a certain amount of electrical current is transmitted through it. Often used as a main fuse or backup fuse for large sectional portions of a car's electrical system.
FIELD (A/C) - A coil with many turns of wire located behind the clutch rotor. Current passing through this coil sets up a magnetic field and causes the clutch to engage.
FIELD - Magnetic lines of force orientated from north to south as in a magnetic field. A magnetic field may be natural as with a permanent magnet or created when electricity flows in a wire.
FIELD COIL - A coil of insulated wire usually wound around an iron core. Current flowing in the coil produces a magnetic field. Also called "field winding." FILAMENT - A resistance in a light bulb which glows and produces light when a current is forced through it.
FIRING LINE:
FIRING LINE - The total amount of voltage being expended through the secondary circuit.
FLUX - Electric or magnetic lines of force passing or flowing in a magnetic field. Also, material used to cause joining metal to adhere to both parts to be joined.
FOUR-WAY FLASHERS - See "hazard warning system."
FREE ELECTRON - Electrons that are not bound to a certain atom but are free to move around from atom to atom.
FREQUENCY - Refers to the number of times something repeats itself (such as a signal from a sensor) in one second.
FUEL PUMP MONITOR (FPM) - Input used to monitor the fuel pump secondary circuit.
FUEL PUMP RELAY (FP) - Relay or its control line. Relay is controlled by ECA processor. Supplies power to electric fuel pump of EFI/CFI system.
FUSE - A metal link in a circuit that melts when the current flow is excessive, thereby breaking the circuit.
FUSE BLOCK - An assembly concentrating most or all of a car's fuses at one point.
FUSIBLE LINK - A wire or bar designed to melt if more than a certain amount of electrical current is transmitted through it. Often used as a main fuse or backup fuse for large sectional portions of a car's electrical system.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.