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.

2013 Subaru BRZ Premium, Automatic TransFACTORY OEM SERVICE PROCEDURE

Throttle body assembly (FA20): Removal

Disconnection of battery ground terminal (Refer to WORKING PRECAUTIONS AND NOTES )
Draining of coolant (SUBARU Super Coolant) (Refer to COOLANT (FA20) )
Removal of air cleaner case sub-assembly (Refer to V-BELT (FA20) )
Removal of throttle body assembly (with motor)
1. Disconnect the connector for the throttle body assembly (with motor).
  
  Fig 1: Locating Throttle Body Assembly Connector
  Courtesy of SUBARU OF AMERICA, INC.
2. Slide 2 clamps, and disconnect the water bypass hose No. 2 and water bypass hose No. 3 from the throttle body assembly (with motor).
  
  Fig 2: Locating Water Bypass Hose Clamps
  Courtesy of SUBARU OF AMERICA, INC.
3. Remove 4 bolts, and remove the throttle body assembly (with motor) from the intake manifold.
4. Remove the throttle body gasket from the intake manifold.
  
  Fig 3: Locating Throttle Body Assembly Mounting Bolts
  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.