SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA2025HIGHLANDER LIMITED, FWDREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSENGINE CONTROL SYSTEM (T24A-FTS) - SERVICE INFORMATIONIGNITION COIL AND SPARK PLUGREMOVAL [10/2022 - ]PROCEDURE
2025 Toyota Highlander Limited, FWD

Removal [10/2022 - ]: Procedure

2025 Toyota Highlander Limited, FWDSECTION Procedure
  1. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 23 [10/2022 - 11/2023] , or refer to PROCEDURE - Step 23 [11/2023 - ]

  2. DISCONNECT ENGINE WIRE 
    1. GTY1108130Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. REMOVE IGNITION COIL ASSEMBLY 
    1. GTY1107099Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using an 8 mm socket wrench, remove the 4 bolts and 4 ignition coil assemblies from the cylinder head cover sub-assembly.
        NOTE:

        If an ignition coil assembly has been struck or dropped, replace it.

  4. REMOVE SPARK PLUG 

    Refer to PROCEDURE - Step 4

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

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

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote 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.