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Repair manual

Theory & Operation Ford Explorer II

Step-by-step instructions on "Theory & Operation" for Ford Explorer II (1994–2003). Pick an article — removal, installation, adjustment and diagnostics with illustrations.

Introduction

Powertrain Control Module (PCM)

Fuel Pump Driver Module (Fpdm)

Input Devices

A/c Cycling Switch (Accs)

A/c Pressure Sensor

A/c High Pressure Switch

Brake Pedal Position (Bpp) Switch

Camshaft Position (Cmp) Sensor

Clutch Pedal Position (Cpp) Switch

Coolant Temperature Sensor

Crankshaft Position (Ckp) Sensor

Cylinder Head Temperature (Cht) Sensor

Differential Pressure Feedback EGR (Dpfe) Sensor

Engine Coolant Temperature (ECT) Sensor

Engine Fuel Temperature (Eft) Sensor

Fuel Pump Monitor (Models Without Fuel Pump Driver Module)

Fuel Pump Monitor (Models with Fuel Pump Driver Module)

Fuel Rail Pressure (Frp) Sensor

Heated Oxygen Sensor (HO2S)

Intake Air Temperature (IAT) Sensor

Mass Airflow (MAF) Sensor

Octane Adjust Shorting Bar

Park/neutral Position (Pnp) Switch

Power Steering Pressure (Psp) Sensor

Power Steering Pressure (Psp) Switch

Power Take-Off (Pto) Switch

Throttle Position (Tp) Sensor

Transmission Control Switch (Tcs)

Transmission Fluid Temperature (Tft) Sensor

Vehicle Speed Sensor (Vss)

Output Signals

Canister Purge (Canp) Solenoid Valve

EGR Vacuum Regulator Solenoid

EGR Valve

Fuel Injectors

Fuel Pump (Gasoline Models Only)

Idle Air Control (Iac) Valve

Malfunction Indicator Light (MIL)

Fuel Delivery

Fuel Pump (Returnable Fuel System)

Fuel Pressure Regulator (Returnable Fuel System)

Inertia Fuel Shutoff (Ifs) Switch

Idle Air Control (Iac) Valve Assembly

Electronic Ignition (Ei) System

Models Equipped with Coil Pack(s)

Secondary Air Injection System

Electronic Secondary Air Injection (Air) System

Mechanical Air Injection System

EGR System

System Description

Differential Pressure Feedback Electronic (Dpfe) Sensor

Orifice Tube Assembly

Evap Purge Flow System

Vapor Management Flow System

Evap Running Loss System

On-Board Refueling Vapor Recovery Evap System

Positive Crankcase Ventilation (PCV)

Self-Diagnostic System