Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2017 Subaru Forester 2.0XT PremiumFACTORY OEM SERVICE PROCEDURE

Tumble Generator Valve Assembly: Removal

NOTE: The tumble generator valve assembly is tightened together with the intake manifold.

Release the fuel pressure. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>Fuel>PROCEDURE>RELEASING OF FUEL PRESSURE .
Disconnect the ground cable from battery.
Open the fuel filler lid and remove the fuel filler cap.
Remove the intake manifold. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>Intake Manifold>REMOVAL .
Remove the air intake adapter from the cylinder head.
- RH side
  
  Fig 1: Locating Air Intake Adapter (RH Side) Bolts
  Courtesy of SUBARU OF AMERICA, INC.
- LH side
Fig 2: Locating Air Intake Adapter (LH Side) Bolts
Courtesy of SUBARU OF AMERICA, INC.
Remove the cylinder head plate from cylinder head.

Fig 3: Locating Cylinder Head Plate

Courtesy of SUBARU OF AMERICA, INC.

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:

• 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.