2012 Subaru Outback LimitedFACTORY 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 Cord Angle
    G07909681Courtesy of SUBARU OF AMERICA, INC.
  2. Connect the knock sensor connector.
    Fig 2: Locating Knock Sensor Connector
    G06648302Courtesy of SUBARU OF AMERICA, INC.
  3. Install the air intake boot assembly. Refer to AIR INTAKE BOOT .
  4. Connect the ground cable to battery.
Fig 3: Connecting Ground Cable To Battery
G07909683Courtesy of SUBARU OF AMERICA, INC.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

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.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.