Throttle Valve Body

2004 Acura 3.5RLSECTION Throttle Valve Body
NOTE: Throttle valve body cannot be disassembled. Only linear solenoid operation may be checked. Throttle valve body and linear solenoid must be replaced as an assembly.
  1. To check linear solenoid operation, connect wiring harness to linear solenoid. Tighten flange nuts to specification. See TORQUE SPECIFICATIONSΒ .
  2. Connect positive battery terminal to Red wire and negative battery terminal to White wire of wiring harness. See Fig 1.
  3. Ensure throttle valve moves downward in throttle valve body by looking through passage on throttle valve body. If throttle valve moves downward with battery connected, linear solenoid is operating.
  4. If throttle valve does not move, disconnect wiring harness at linear solenoid. Connect battery directly to linear solenoid.
  5. If throttle valve now moves, replace wiring harness. If linear solenoid still does not operate, replace linear solenoid and throttle valve body as an assembly.
Fig 1: Checking Linear Solenoid Operation
G93H23900Courtesy of AMERICAN HONDA MOTOR CO., INC.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.