2009 Subaru Outback XT Limited, StandardFACTORY OEM SERVICE PROCEDURE

Knock Sensor: Installation

  1. Install the knock sensor to the cylinder block.
    NOTE: The portion of the knock sensor cord that is pulled out must be positioned at a 60Β° angle relative to the engine rear.

    Tightening torque:Β 

    24 N.m (2.4 kgf-m, 17.7 ft-lb)Β 

    Fig 1: [Identifying Knock Sensor Angle Position]
    G06335087Courtesy of SUBARU OF AMERICA, INC.
  2. Connect the knock sensor connector.
    Fig 2: Locating Knock Sensor Connector
    G05660397Courtesy of SUBARU OF AMERICA, INC.
  3. Install the intercooler. Refer to INSTALLATION , Intercooler.
  4. Connect the ground cable to battery.
    Fig 3: Disconnecting Ground Cable From Battery
    G05019586Courtesy of SUBARU OF AMERICA, INC.
  5. Install the collector cover.
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:

  • 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.

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