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HOMESERVICE MANUALSTOYOTA20184RUNNER SR5, 4WDREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSENGINE CONTROL SYSTEM - SERVICE INFORMATIONIGNITION COIL AND SPARK PLUGREMOVAL [08/2015 - ]PROCEDURE
2018 Toyota 4Runner SR5, 4WD

Removal [08/2015 - ]: Procedure

2018 Toyota 4Runner SR5, 4WDSECTION Procedure
  1. REMOVE V-BANK COVER 

    Refer to PROCEDURE - Step 10

  2. REMOVE AIR CLEANER CAP AND HOSE 
    1. Remove the air cleaner cap and hose.
      GTY227258Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Disconnect the mass air flow meter connector, vacuum hose and ventilation hose and detach the 4 clamps.
      2. Loosen the clamp.
      3. Unfasten the 4 hook clamps, and then remove the bolt and air cleaner cap and hose.
  3. REMOVE AIR TUBE 

    Refer to PROCEDURE - Step 3

  4. REMOVE NO. 1 EMISSION CONTROL VALVE SET 

    Refer to PROCEDURE - Step 4

  5. REMOVE NO. 2 AIR TUBE 

    Refer to PROCEDURE - Step 1

  6. REMOVE NO. 2 EMISSION CONTROL VALVE SET 

    Refer to PROCEDURE - Step 2

  7. REMOVE IGNITION COIL ASSEMBLY 
    1. Disconnect the 6 ignition coil assembly connectors.
      GTY235393Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 6 bolts and 6 ignition coil assemblies.
  8. REMOVE SPARK PLUG 
    1. Remove the 6 spark plugs.
RENDER: 1.0x

NO RELATED

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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.