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Home › Subaru › 2023 › Outback Base › Repair and Diagnosis › Engine Mechanical › Cooling Fan › Engine Cooling System (2.5L) › Thermo Control Valve Assembly › Installation

Thermo Control Valve Assembly: Installation

  1. When thermo control valve assembly is replaced
    1. Install a new gasket to the thermo control valve assembly.
    2. Connect the thermo control valve assembly to the water hose (A), water hose (B) and water hose (C), and install the bolts that hold the thermo control valve assembly.

      Tightening torque: 

      16 N.m (1.6 kgf-m, 11.8 ft-lb)

    3. Connect the preheater hose (D).
      G13619237Courtesy of SUBARU OF AMERICA, INC.
  2. When thermo control valve assembly is not replaced
    1. Connect each new hose to the thermo control valve assembly.
      G13224675Courtesy of SUBARU OF AMERICA, INC.
      (A) Water hose
      (B) Water hose
      (C) Water hose
      (D) Preheater hose
    2. Install a new gasket to the thermo control valve assembly.
    3. Connect the water hose (A), water hose (B) and water hose (C), and install the bolts that hold the thermo control valve assembly.

    Tightening torque: 

    16 N.m (1.6 kgf-m, 11.8 ft-lb)

    G13619238Courtesy of SUBARU OF AMERICA, INC.
  3. Install the engine wiring harness stay.
    NOTE: Use the following formula to calculate the reading of a torque wrench when tightening with a crowfoot wrench.

    Calculation formula

    T = 19 N.m (1.9 kgf-m, 14.0 ft-lb) x L1/(L1 + L2)

    T: Reading of the torque wrench

    L1: Effective length of the torque wrench

    L2: Effective length of the crowfoot wrench

    NOTE: If the effective length of the tool used is unknown, consult the manufacturer of the tool.
    G11253181Courtesy of SUBARU OF AMERICA, INC.
    (a) Effective length of the crowfoot wrench (L2)
    (b) Effective length of the torque wrench (L1)
    (c) Center of the open end of crowfoot wrench
    (d) Center of drive square of the torque wrench
    (e) Center of the position where a force is applied by hand

    Tightening torque: 

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

    G13224672Courtesy of SUBARU OF AMERICA, INC.
  4. Connect the connector (A) and connector (B).
    G13619235Courtesy of SUBARU OF AMERICA, INC.
  5. Install the clip (A), clip (B) and clip (C) and install the bolt securing the engine ground and the harness case.

    Tightening torque: 

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

    G13619234Courtesy of SUBARU OF AMERICA, INC.
  6. Install the high-pressure fuel delivery pipe assembly. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>HIGH PRESSURE FUEL DELIVERY PIPE>INSTALLATION>HIGH-PRESSURE FUEL DELIVERY PIPE ASSEMBLY .
  7. Connect the ground terminal to battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
  8. Install the fuel filler cap, and close the fuel filler lid.
  9. Fill engine coolant. Ref. to COOLING (H4DO)>ENGINE COOLANT>REPLACEMENT>FILLING OF ENGINE COOLANT .
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