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

RH Side

Remove the collector cover.
1. Remove the clip (A).
2. Hold the shaded area (B) by hand and carefully pull the RH side (C) upward.
3. Hold the shaded area (D) by hand and carefully pull the LH side (E) upward.
Fig 1: Pulling Collector Cover (RH) And (LH) Side Upward
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the ground cable from battery.
Remove the intake manifold. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>Intake Manifold>REMOVAL .
Remove the fuel pipe insulator No. 3. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>Fuel Insulator>REMOVAL>FUEL PIPE INSULATOR NO. 3 .
Disconnect the connector (A) from the knock sensor, and remove the knock sensor from the cylinder block.

Fig 2: Locating Knock Sensor Bolt

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.