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Home >> Subaru >> 2021 >> Ascent Base >> Repair and Diagnosis >> Engine Mechanical >> Exhaust System >> Front Exhaust Pipe >> Removal

Front Exhaust Pipe: Removal

CAUTION: Vehicle components are extremely hot immediately after driving. Be wary of receiving burns from heated parts.
  1. Disconnect the ground terminal from battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
  2. Drain engine coolant. Ref. to COOLING (H4DOTC)>Engine Coolant>REPLACEMENT>DRAINING OF ENGINE COOLANT .
  3. Remove the air intake duct. Ref. to INTAKE (INDUCTION) (H4DOTC)>Air Intake Duct>REMOVAL .
  4. Remove the radiator fan and fan motor assembly. Ref. to COOLING (H4DOTC)>Radiator Fan and Fan Motor Assembly>REMOVAL .
  5. Disconnect the water hoses.
    G13199031Courtesy of SUBARU OF AMERICA, INC.
  6. Disconnect the oil pipe.
    G13199032Courtesy of SUBARU OF AMERICA, INC.
  7. Remove the turbocharger stay.
    G13199033Courtesy of SUBARU OF AMERICA, INC.
  8. Remove the bolt securing the intake duct No. 2, and release the spring lock.
    NOTE: Move the both ends of the spring to the cutouts of the intake duct No. 2 using a flat tip screwdriver wrapped with protection tape.
    G13198590Courtesy of SUBARU OF AMERICA, INC.
  9. Remove the center exhaust pipe (rear). Ref. to EXHAUST (H4DOTC)>Center Exhaust Pipe>REMOVAL>CENTER EXHAUST PIPE (REAR) .
  10. Remove the intake duct No. 1. Ref. to INTAKE (INDUCTION) (H4DOTC)>Intake Duct>REMOVAL>INTAKE DUCT NO. 1 .
  11. Disconnect the front oxygen (A/F) sensor connector, and remove the clip.
    G13199035Courtesy of SUBARU OF AMERICA, INC.
  12. Disconnect the rear oxygen sensor connector and ground cord.
    G13199036Courtesy of SUBARU OF AMERICA, INC.
  13. Disconnect the electronic control waste gate valve connector (A) and the electronic control air by-pass valve connector (B).
    G13199037Courtesy of SUBARU OF AMERICA, INC.
  14. Remove the oil catch tank. Ref. to INTAKE (INDUCTION) (H4DOTC)>Oil Catch Tank>REMOVAL .
    CAUTION: This procedure is required to prevent oil from remaining in the compressor and turbine areas if the residual oil inside the oil catch tank back flows.
  15. Remove the bolts securing the exhaust stay.
    G13199038Courtesy of SUBARU OF AMERICA, INC.
  16. Remove the front exhaust pipe, center exhaust pipe (front) and turbo charger as a unit.
    NOTE: Support the front exhaust pipe with the transmission jack.
    G13199039Courtesy of SUBARU OF AMERICA, INC.
  17. Remove the turbocharger stay.
NOTE: Remove if necessary.
G13620453Courtesy of SUBARU OF AMERICA, INC.
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