Output Shaft Speed (OSS) Sensor: Installation

2010 Mercury Mariner Hybrid, AWDSECTION Installation
WARNING: This page is about a different variant/trim than selected.
  1. Install the OSSΒ  sensor and the bolt.
    • Tighten to 10 Nm (89 lb-in).
      Fig 1: Locating OSS Sensor Bolt
      G06376855Courtesy of FORD MOTOR CO.
  2. NOTE: If cleaning the main control assembly or inspecting the valves, refer to MAIN CONTROL VALVE BODYΒ . If installing a new main control assembly, continue with this procedure.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.