Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2002 Lexus LS 430FACTORY OEM SERVICE PROCEDURE
Ignition Coil: Replacement
- Remove V-Bank cover and engine room side covers.
- Remove intake air connector pipe.
- Remove engine oil level gauge and guide.
- Remove ignition coils.
- Disconnect the 8 ignition coil connectors.
- Remove the bolt, and pull out the ignition coil. Remove the 8 ignition coils.
- Reinstall new ignition coils.
- 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 8 ignition coils.
Torque : 7.5 N.m (80 kgf.cm, 66 in.lbf)
- Connect the 8 ignition coil connectors.
- 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 8 ignition coils.
- Install engine oil level gauge and guide.
- Reinstall intake air connector pipe.
- Reinstall V-Bank cover and engine room side covers.
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.