What Are the Most Common Causes of Ignition Coil Failure in the Toyota Hilux?

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What Are the Most Common Causes of Ignition Coil Failure in the Toyota Hilux?

Overheating, moisture damage, and electrical issues can all lead to premature ignition coil failure. What was the root cause in your case?

Sandeep asked on 11 Feb 2025 12:10:37 pm

1 Answer

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Car Mechanic Expert - on 11 Feb 2025 12:17:58 pm

Ignition coil failure in the Hilux is commonly caused by overheating, moisture intrusion, and electrical issues. Excessive engine heat can break down insulation, leading to shorts. Moisture and oil leaks can also contaminate the coils, causing corrosion. Additionally, poor-quality spark plugs and ignition system wear can stress the coils, accelerating failure. Regular maintenance and using high-quality components help prevent premature coil failure.