2002 Mercury Villager BaseFACTORY OEM SERVICE PROCEDURE

Output Shaft Speed (OSS) Sensor: Installation

  1. Install the output shaft sensor.
    1. Install the sensor.
    2. Install the bolt.
      Fig 1: Installing Output Shaft Sensor
      G03412258Courtesy of FORD MOTOR CO.
  2. Install the splash shield.
    1. Install the splash shield.
    2. Install the bolts.
      Fig 2: Installing Bolts
      G03412259Courtesy of FORD MOTOR CO.
  3. Install the splash shield bolt.
    Fig 3: Installing Splash Shield Bolt
    G03412260Courtesy of FORD MOTOR CO.
  4. Install the LH wheel and tire assembly.
    Fig 4: Installing LH Wheel And Tire Assembly
    G03412261Courtesy of FORD MOTOR CO.
  5. Lower the vehicle.
  6. Connect the output shaft speed sensor electrical connector.
    Fig 5: Connecting Output Shaft Speed Sensor Electrical Connector
    G03412262Courtesy of FORD MOTOR CO.
  7. Install the air cleaner assembly.
    8. NOTE: When the battery is disconnected and reconnected, some abnormal drive symptoms may occur while the vehicle relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 miles) or more to relearn the strategy.
  8. Connect the battery ground cable.
Factory Service Tools

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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.