Can Faulty Spark Plugs Cause Poor Fuel Economy in My Suzuki Khyber?

Home > Gari Forums > Suzuki Forums > Suzuki Khyber Forums > Suzuki Khyber Spark Plug Problems Forums

Can Faulty Spark Plugs Cause Poor Fuel Economy in My Suzuki Khyber?

My Khybers fuel efficiency has ped recently, and I’m consuming more petrol than usual. Could worn-out spark plugs be causing this issue? What are the signs that my spark plugs are affecting my fuel economy?

Gari Specialist asked on 12 Apr 2025 18:06:28 pm

1 Answer

19 views |

Gari Master - on 12 Apr 2025 18:08:45 pm

Yes, faulty spark plugs can significantly reduce your Khyber’s fuel economy. When the spark plugs are worn o r dirty, they may not ignite the air-fuel mixture properly, causing the engine to burn more fuel to compensate for incomplete combustion.

Signs Spark Plugs Are Causing Poor Fuel Economy:

Increased fuel consumption despite not changing your driving habits

Rough idling o r noticeable hesitation during acceleration

Decreased engine performance o r sluggishness

What You Should Do:

If you notice any of the above symptoms, it’s time to inspect your spark plugs.

Replace any spark plugs that appear worn o r dirty. If they have heavy carbon buildup, they might be preventing efficient combustion.

A spark plug replacement may improve your fuel economy by 10-20%.