Can Faulty Spark Plugs Affect the Fuel Economy of a Toyota Hilux?

Home > Gari Forums > Toyota Forums > Toyota Hilux Forums > Toyota Hilux Spark Plug Problems Forums

Can Faulty Spark Plugs Affect the Fuel Economy of a Toyota Hilux?

Bad spark plugs can lead to inefficient combustion, increasing fuel consumption. Have you noticed a in mileage, and did replacing spark plugs help?

Sirat Ul Jinan asked on 11 Feb 2025 16:59:11 pm

1 Answer

18 views |

Car Mechanic Expert - on 11 Feb 2025 17:04:46 pm

Yes! Bad spark plugs lead to incomplete fuel combustion, causing:

❌ Higher fuel consumption.
❌ Increased carbon buildup.
❌ Poor throttle response.

📌 Solution: If you notice a in mileage, replacing old spark plugs can restore fuel efficiency.