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.
2016 Subaru WRX BaseFACTORY OEM SERVICE PROCEDURE
Throttle Body: Removal
- Remove the collector cover. < Ref. to REMOVAL , Collector Cover. >
- Disconnect the ground terminal from battery sensor. < Ref. to BATTERY , NOTE, Note. >
- Lift up the vehicle.
- Remove the under cover. < Ref. to REMOVAL , Front Under Cover. >
- Drain approximately 3.0 L (3.2 US qt, 2.6 Imp qt) of coolant. < Ref. to DRAINING OF ENGINE COOLANT , REPLACEMENT, Engine Coolant. >
- Remove the intercooler. < Ref. to REMOVAL , Intercooler. >
- Remove the intake duct No. 3. < Ref. to INTAKE DUCT NO. 3 , REMOVAL, Intake Duct. >
- Disconnect the connector (A) from the throttle position sensor, and disconnect the preheater hose (B) from the throttle body.
- Remove the throttle body from the intake manifold.
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.
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