2016 Subaru WRX BaseFACTORY OEM SERVICE PROCEDURE

Intake Manifold: Assembly

  1. Connect the PCV hose and vacuum control hose to intake manifold.
    Fig 1: Locating PCV Hose And Vacuum Control Hose Of Intake Manifold
    G09479638Courtesy of SUBARU OF AMERICA, INC.
  2. Connect the vacuum hose to the intake manifold, and install the purge control solenoid valve.

    Tightening torque:Β 

    19 N.m (1.9 kgf-m, 14.0 ft-lb)Β 

    Fig 2: Locating Vacuum Hose And Bolt
    G09479637Courtesy of SUBARU OF AMERICA, INC.
  3. Install the throttle body to the intake manifold.
    NOTE: Use a new gasket.

    Tightening torque:Β 

    8 N.m (0.8 kgf-m, 5.9 ft-lb)Β 

    Fig 3: Locating Throttle Body Bolts
    G09479636Courtesy of SUBARU OF AMERICA, INC.
  4. Temporarily install the EGR pipe to the intake manifold.
    NOTE:
    • Use new O-rings.
    • Tighten the EGR pipe when installing the intake manifold. < Ref. to INSTALLATION , EGR Pipe. >
Factory Service Tools

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When to See a Mechanic

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

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

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