2004 Toyota Avalon XLSFACTORY OEM SERVICE PROCEDURE

Ignition Coil: Replacement

  1. REMOVE V-BANK COVER 
    1. Using a 5 mm hexagon wrench, remove the 3 cap nuts.
    2. Loosen the V-bank cover fastener counterclockwise.
    3. Remove the V-bank cover.
  2. REMOVE IGNITION COILS 
    1. Disconnect the 6 ignition coil connectors.
      Fig 1: Removing V-Bank Cover
      G02879114Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the bolt, and pull out the ignition coil. Remove the 6 ignition coils.
  3. REINSTALL NEW IGNITION COILS 
    1. Connect a new ignition coil to the spark plug, and attach the ignition coil to the cylinder head cover, and install the bolt. Install the 6 ignition coils.

      Torque: 8 N.m (80 kgf.cm, 69 in.lbf) 

    2. Connect the 6 ignition coil connectors.
  4. REINSTALL V-BANK COVER 
    1. Using 5 mm hexagon wrench, install the V-bank cover with the 3 cap nuts.
    2. Press down the V-bank cover fastener.
    Fig 2: Removing Ignition Coil
    G02879115Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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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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