Can bad spark plugs cause my Wagon R engine to sputter o r misfire?

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Can bad spark plugs cause my Wagon R engine to sputter o r misfire?

Spark plugs play a critical role in smooth engine performance. How do worn o r fouled spark plugs contribute to engine sputtering o r misfiring in the Wagon R, and when should they be replaced?

Gari Specialist asked on 24 May 2025 13:31:08 pm

1 Answer

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Gari Master - on 24 May 2025 13:34:30 pm

Yes, spark plugs are vital for engine combustion. Worn o r fouled spark plugs can cause:

Misfires and sputtering: Incomplete combustion leads to rough engine running.

Reduced fuel efficiency: Poor spark causes incomplete fuel burning.

Difficulty starting the engine: Weak sparks affect ignition during start.

Fix: Replace spark plugs every 30,000 to 50,000 km or as recommended. Use the correct spark plug type specified in the owner’s manual.