2019 Subaru Ascent BaseFACTORY OEM SERVICE PROCEDURE

Intake Manifold Assembly: Installation

  1. Install the cylinder head plate to the cylinder head.
    G13198186Courtesy of SUBARU OF AMERICA, INC.
  2. Install the fuel pipe protector stay.

    Tightening torque:Ā 

    19 N.m (1.9 kgf-m, 14.0 ft-lb)

    G13198187Courtesy of SUBARU OF AMERICA, INC.
  3. Set a new gasket and install the intake manifold assembly.
    NOTE: Be careful not to let the engine wiring harness be caught by the parts.

    Tightening torque:Ā 

    25 N.m (2.5 kgf-m, 18.4 ft-lb)

    • RH side
      G13198188Courtesy of SUBARU OF AMERICA, INC.
    • LH side
    G13198189Courtesy of SUBARU OF AMERICA, INC.
  4. Set a new gasket, and install the stud bolts using TORXĀ® socket E5.

    Tightening torque:Ā 

    6.4 N.m (0.7 kgf-m, 4.7 ft-lb)

    G13198190Courtesy of SUBARU OF AMERICA, INC.
  5. Temporarily attach the EGR pipe No. 2 and tighten it in order (1) ā†’ (2) ā†’ (3).

    Tightening torque:Ā 

    9 N.m (0.9 kgf-m, 6.6 ft-lb)

    G13198191Courtesy of SUBARU OF AMERICA, INC.
  6. Install the PCV hose. Ref. to EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (H4DOTC)>PCV HOSE>INSTALLATION .
  7. Install the harness stay.

    Tightening torque:Ā 

    6.4 N.m (0.7 kgf-m, 4.7 ft-lb)

  8. Install the harness (B) and clip (C) to the harness stay.
  9. Install the connector (D) and clip (E).
  10. Connect the connector (A).
    G13198192Courtesy of SUBARU OF AMERICA, INC.
  11. Install the clip (C) and clip (D).
  12. Connect the fuel delivery pipe (B). Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>FUEL DELIVERY AND EVAPORATION LINES>INSTALLATION>QUICK CONNECTOR CONNECTION (TYPE B)Ā .
  13. Connect the connector (A).
    G13198193Courtesy of SUBARU OF AMERICA, INC.
  14. Install the fuel pipe protector No. 1.

    Tightening torque:Ā 

    19 N.m (1.9 kgf-m, 14.0 ft-lb)

    G13198194Courtesy of SUBARU OF AMERICA, INC.
  15. Temporarily attach the fuel pipe protector No. 2, and tighten the bolts securing the A/C compressor in numerical order as shown in figure.

    Tightening torque:Ā 

    25 N.m (2.5 kgf-m, 18.4 ft-lb)

    G13198195Courtesy of SUBARU OF AMERICA, INC.
  16. Install the V-belts. Ref. to MECHANICAL (H4DOTC)>V-BELT>INSTALLATION>V-BELT .
  17. Place the engine wiring harness and install the engine wiring harness to the bracket.
    G13198196Courtesy of SUBARU OF AMERICA, INC.
  18. Install the engine wiring harness to the clip (D), and connect the connector (C).
  19. Connect the connector (A) and connector (B) in numerical order shown in figure.
    G13198197Courtesy of SUBARU OF AMERICA, INC.
  20. Connect the clip (A) and clip (B).
    G13198198Courtesy of SUBARU OF AMERICA, INC.
  21. Install the V-belt cover bracket and install the connector (A).

    Tightening torque:Ā 

    6.4 N.m (0.7 kgf-m, 4.7 ft-lb)

    G13198199Courtesy of SUBARU OF AMERICA, INC.
  22. Secure the battery cable with the clip (E) and clip (F) in place.
  23. Connect the connector (A), connector (B), connector (C) and terminal (D).

    Tightening torque:Ā 

    15.5 N.m (1.6 kgf-m, 11.4 ft-lb)

    G13198200Courtesy of SUBARU OF AMERICA, INC.
  24. Connect the purge hose (E).
  25. Install the fuel delivery tube clamp (D).
  26. Connect the fuel delivery tube (C). Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>FUEL DELIVERY AND EVAPORATION LINES>INSTALLATION>QUICK CONNECTOR CONNECTION (TYPE A)Ā .
  27. Connect the connector (A) and connector (B).
    G13198201Courtesy of SUBARU OF AMERICA, INC.
  28. Connect the vacuum hose to check valve.
    G13198202Courtesy of SUBARU OF AMERICA, INC.
  29. Install the PCV pipe to the intake manifold assembly.
  30. Connect the connector (C) and secure it with the clip (D).
  31. Connect the connector (A) and secure it with clip (B).
    G13198203Courtesy of SUBARU OF AMERICA, INC.
  32. Make sure that the engine coolant remains before removing the intake manifold assembly.
    1. Install the throttle body. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>THROTTLE BODY>INSTALLATIONĀ .
  33. When the engine coolant has been drained before removing the intake manifold assembly.
    1. Connect the connector (A) to the throttle body and connect the preheater hoses (B).
    G13198204Courtesy of SUBARU OF AMERICA, INC.
  34. Install the intake duct No. 2. Ref. to INTAKE (INDUCTION) (H4DOTC)>INTAKE DUCT>INSTALLATION>INTAKE DUCT NO. 2 .
  35. Connect the battery ground terminal. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • ā€¢ You smell fuel, burning insulation, or see smoke.
  • ā€¢ Brakes feel soft, pull hard to one side, or make grinding noises.
  • ā€¢ The engine overheats, stalls repeatedly, or misfires under load.
  • ā€¢ You are missing required tools, torque specs, or safe lifting equipment.
  • ā€¢ You are not confident in the next step or safety outcome.

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