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

Inspection

Check that the resonator chamber has no deformation, cracks or other damages. ...

Intake (induction)(h6do)

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Other materials:

Engine cooling system trouble in general inspection
TroublePossible causeCorrective actionOver-heatinga. Insufficient engine coolantReplenish engine coolant, inspect for leakage, and repair it if necessary.b. Defective thermostatReplace.c. Malfunction of water pumpReplace.d. Clogged engine coolant passageClean.e. Improper ignition timingInspect and r ...