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Home >> Subaru >> 2018 >> Forester 2.5i, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control/Fuel Injection System (H4DO) >> Knock Sensor >> Installation
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Knock Sensor: Installation

  1. Install the knock sensor to the cylinder block by routing it under the water pipe assembly, and connect the connector to the knock sensor.
    NOTE:
    • The knock sensor should be installed so that the center of the knock sensor is positioned at a 105° - 120° angle from the cylinder block rib (a) relative to the front of engine.
    • Make sure that the knock sensor and its connector do not touch the adjacent parts.

    Tightening torque: 

    24 N.m (2.4 kgf-m, 17.7 ft-lb)

    G12505379Courtesy of SUBARU OF AMERICA, INC.
  2. Install the air intake boot. Ref. to INTAKE (INDUCTION) (H4DO)>Air Intake Boot>INSTALLATION .
  3. Connect the ground terminal to battery sensor. Ref. to NOTE>NOTE>BATTERY .