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Home >> Subaru >> 2004 >> Impreza TS, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection (Fuel Systems) (H4SO) >> Knock Sensor >> Removal
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Knock Sensor: Removal

  1. Disconnect the ground cable from battery.
    Fig 1: Disconnecting Ground Cable From Battery
    G00800542Courtesy of SUBARU OF AMERICA, INC.
  2. Remove the air cleaner case. < Ref. to REMOVAL , Air Cleaner Case. >
  3. Disconnect the knock sensor connector.
    Fig 2: Disconnecting Knock Sensor Connector
    G00800543Courtesy of SUBARU OF AMERICA, INC.
  4. Remove the knock sensor from the cylinder block.
    Fig 3: Removing Knock Sensor From Cylinder Block
    G00800544Courtesy of SUBARU OF AMERICA, INC.