2004 Toyota RAV4 L, FWD, AutomaticFACTORY OEM SERVICE PROCEDURE

Knock Sensor: Inspection

  1. REMOVE ENGINE FROM VEHICLE (See  REMOVAL  ) 
  2. REMOVE INTAKE MANIFOLD AND THROTTLE BODY ASSEMBLY (See  REMOVAL  ) 
  3. REMOVE KNOCK SENSOR 
    1. Disconnect the knock sensor connector.
    2. Remove the nut and knock sensor.
      Fig 1: Removing Knock Sensor & Nut
      G02639485Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSPECT KNOCK SENSOR 

    Using an ohmmeter, make sure there is continuity between the terminals.

    Fig 2: Inspecting Knock Sensor
    G02639486Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    If there is no continuity, replace the sensor.

  5. REINSTALL KNOCK SENSOR 
    1. Install the knock sensor with the nut.

      Torque: 20 N.m (204 kgf.cm, 15 ft.lbf) 

      HINT:

      Angling the knock sensor below the horizontal (below 0°) is recommended.

      2. Fig 3: Installing Knock Sensor To Proper Angle
      G02639487Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the knock sensor connector.
  6. REINSTALL INTAKE MANIFOLD AND THROTTLE BODY ASSEMBLY (See  INSTALLATION  ) 
  7. INSTALL ENGINE TO VEHICLE (See  INSTALLATION  ) 
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

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.