Why is my Suzuki Mehran misfiring o r running rough — is it a spark plug issue?

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Why is my Suzuki Mehran misfiring o r running rough — is it a spark plug issue?

My Mehran 2016 model sometimes misfires o r runs rough, especially when starting in the morning o r driving uphill. A mechanic told me it could be due to worn-out spark plugs. How can I know for sure, and which spark plugs work best for Pakistani conditions?

Gari Specialist asked on 24 Apr 2025 13:32:55 pm

1 Answer

19 views |

Gari Master - on 24 Apr 2025 13:36:54 pm

Yes, misfiring o r rough running is often due to worn-out o r dirty spark plugs. In Pakistani conditions, spark plugs can wear out faster due to dusty air and low fuel quality. If your Mehran hesitates, vibrates, o r jerks, especially during acceleration o r cold starts, its likely time to clean o r replace the plugs. Use NGK o r Denso plugs recommended for Mehran and check the gap setting usually around 0.8 mm. Also check the plug wires for cracks o r wear.