What causes engine sputtering at idle in the Suzuki Wagon R?

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What causes engine sputtering at idle in the Suzuki Wagon R?

If your Wagon Rs engine sputters o r shakes while idling, it could indicate underlying problems such as a vacuum leak, dirty throttle body, o r faulty idle control valve. What are the common reasons for rough idling and how can they be fixed?

Gari Specialist asked on 24 May 2025 13:30:36 pm

1 Answer

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Gari Master - on 24 May 2025 13:34:02 pm

Sputtering at idle can be caused by:

Vacuum leaks: Small cracks o r loose hoses let extra air into the engine, causing rough idle.

Dirty throttle body: Carbon buildup restricts airflow, disrupting the idle.

Faulty idle air control valve IACV: This valve controls airflow at idle if it’s malfunctioning, the engine may sputter.

Fuel delivery issues: Dirty fuel filter o r weak fuel pump can cause inconsistent fuel supply.

Fix: Clean the throttle body and IAC valve, inspect and replace vacuum hoses, and check the fuel filter and pump condition.