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.
2021 Subaru Outback BaseFACTORY OEM SERVICE PROCEDURE
Control Valve Body: Removal
NOTE:
The control valve body is a non-disassembly part.
- Disconnect the ground terminal from battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
- Remove the clip from the air intake boot, and loosen the clamp.
- Remove the air intake boot, and place it aside so that it does not interfere with the work.CAUTION: Be careful not to pull out the PCV hose.
- Remove the TCM. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>TRANSMISSION CONTROL MODULE (TCM)>REMOVAL .
- Disconnect the transmission harness connector from the engine wiring harness.
- Remove the air breather hose stay.
- Remove the transmission harness clip.
- Clean the valve cover vicinity.CAUTION: Make sure that foreign matter does not get into the throttle body and connector terminals.
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.