Subaru Legacy BN/BS (2015-2019) Service Manual: Knock sensor

Disassembly

1. Remove the throttle body. Throttle Body > REMOVAL2. Remove the EGR pipe. EGR Pipe > REMOVAL3. Remove the EGR control valve. EGR Control Valve > REMOVAL4. Remove the purge control solenoid valve. ...

Removal

1. Disconnect the ground terminal from battery sensor. NOTE2. Remove the bolt securing the connector to the A/C compressor.3. Disconnect the connector (A) from the knock sensor, and remove the knock ...

Other materials:

Inspection
1. Ball bearingReplace the ball bearing in following cases.• In case of broken or rusty ball bearings• In case of worn or damaged ball bearings• When the ball bearings fail to turn smoothly or emit noise in rotation after transmission gear oil has been applied.• When the ball ...