Subaru Legacy BN/BS (2015-2019) Service Manual: Front catalytic converter

Installation

1. EGR PIPE A1. Temporarily attach the EGR pipe A to the cylinder head and the EGR control valve.NOTE:Use a new gasket.2. Tighten the bolts securing the EGR pipe A to the EGR control valve.Tightening ...

Removal

The front and rear catalytic converters are integrated into the front exhaust pipe; therefore, refer to “Front Exhaust Pipe” for the removal procedure. Front Exhaust Pipe > REMOVAL ...

Other materials:

General diagnostic table inspection
Symptom or troublePossible causeRemedy1. Oil leakage(1) Worn, scratched, or incorrectly seated front or side oil seal. Scored, battered or excessively worn sliding surface of companion flange.Repair or replace.(2) Clogged or damaged air breather cap.Clean, repair or replace.(3) Loose bolts on the si ...