2004 Toyota RAV4 Base, AWD, AutomaticFACTORY OEM SERVICE PROCEDURE

On-Vehicle Inspection

  1. REMOVE AIR CLEANER ASSEMBLY 
    1. Disconnect the MAF meter connector.
    2. Disconnect the VSV hose for CCV.
    3. Remove the 3 bolts and air cleaner assembly, air cleaner inlet, MAF meter together in one piece.
  2. INSPECT INJECTOR OPERATION 

    Check the each injectors for operation sound.

    1. With the engine running or cranking, use a sound scope to check that there is normal operating noise in proportion to the engine speed.
      2. Fig 1: Using Sound Scope To Check For Normal Operating Noise
      G02639410Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. If you have no sound scope, you can check it by feeling the injector operating vibration with your finger.

    If no sound or unusual sound is heard, check the wiring connector, injector or injection signal from the ECM.

  3. INSPECT INJECTOR RESISTANCE 
    1. Disconnect the injector connector.
    2. Using an ohmmeter, measure the resistance between the terminals.

      Resistance: 11.6 to 12.4 Ω at 20°C (68°F) 

      Fig 2: Measuring Resistance Between Terminals Using Ohmmeter
      G02639411Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the resistance is not as specified, replace the injector.

    3. Reconnect the injector connector.
  4. REINSTALL AIR CLEANER ASSEMBLY 
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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