2020 Subaru Ascent TouringFACTORY OEM SERVICE PROCEDURE

Intake Manifold Assembly: Assembly

  1. Connect the fuel delivery pipe to the fuel pipe. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>FUEL DELIVERY AND EVAPORATION LINES>INSTALLATION>QUICK CONNECTOR CONNECTION (TYPE B) .
  2. Install the fuel pipe and fuel delivery pipe.

    Tightening torque: 

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

    G13198207Courtesy of SUBARU OF AMERICA, INC.
  3. Install the vacuum pipe assembly. Ref. to EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (H4DOTC)>VACUUM PIPE ASSEMBLY>INSTALLATION .
  4. Install the check valve. Ref. to EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (H4DOTC)>CHECK VALVE>INSTALLATION .
  5. Install the manifold absolute pressure and intake air temperature sensor. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>MANIFOLD ABSOLUTE PRESSURE AND INTAKE AIR TEMPERATURE SENSOR>INSTALLATION .
  6. Install the purge control solenoid valve. Ref. to EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (H4DOTC)>PURGE CONTROL SOLENOID VALVE>INSTALLATION .
  7. Set a new gasket, and temporarily install the EGR pipe No. 1.
    G13198208Courtesy of SUBARU OF AMERICA, INC.
  8. When the engine coolant has been drained before removing the intake manifold assembly.
    1. Install the throttle body. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>THROTTLE BODY>INSTALLATION .
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When to See a Mechanic

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

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