2012 Toyota Sienna SEFACTORY OEM SERVICE PROCEDURE

Active Control Engine Mount: Removal: Removal

  1. REMOVE RADIATOR ASSEMBLY AND FAN ASSEMBLY WITH MOTOR 

    Refer to REMOVAL

  2. REMOVE TRANSVERSE ENGINE MOUNTING BRACKET 

    HINT: 

    Securely support the automatic transaxle using a jack.

    1. Remove the 3 bolts, nut and the transverse engine mounting bracket.
      Fig 1: Identifying Transverse Engine Mounting Bracket & Fasteners
      GTY294976Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. REMOVE FRONT ENGINE MOUNTING INSULATOR ASSEMBLY 
    1. Disconnect the duty vacuum switching valve connector.
      Fig 2: Identifying Duty Vacuum Switching Valve Connector & Clamp
      GTY295911Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the wire harness clamp.
    3. Remove the 3 nuts and the front engine mounting insulator assembly.
      Fig 3: Identifying Front Engine Mounting Insulator Assembly & Fasteners
      GTY298026Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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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