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HOMESERVICE MANUALSSUBARU2014IMPREZA SPORT LIMITEDREPAIR AND DIAGNOSISENGINE PERFORMANCEFUEL DELIVERYFUEL INJECTION FUEL SYSTEMS (EXCEPT HYBRID)KNOCK SENSORREMOVAL
2014 Subaru Impreza Sport Limited

Knock Sensor: Removal

2014 Subaru Impreza Sport LimitedSECTION Removal
  1. Disconnect the ground cable from battery.
    Fig 1: Disconnecting Ground Cable From Battery
    G08317298Courtesy of SUBARU OF AMERICA, INC.
  2. Remove the clip (A) from the air intake boot.
  3. Loosen the clamp (B) connecting the air intake boot and air cleaner case (rear).
  4. Loosen the clamp (C) which connects the air intake boot and throttle body.
    Fig 2: Identifying Air Intake Boot Clamp And Clip
    G09475465Courtesy of SUBARU OF AMERICA, INC.
  5. Remove the air intake boot from the throttle body, and move it to the left side wheel apron.
    Fig 3: Removing Air Intake Boot From Throttle Body
    G09476922Courtesy of SUBARU OF AMERICA, INC.
  6. Disconnect the connector (A) from the knock sensor, and remove the knock sensor from the cylinder block.
    Fig 4: Identifying Knock Sensor Connector
    G08315408Courtesy of SUBARU OF AMERICA, INC.
RENDER: 1.0x

NO RELATED

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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.