Can bad spark plugs lead to rough idling and poor acceleration in my Suzuki Alto?

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Can bad spark plugs lead to rough idling and poor acceleration in my Suzuki Alto?

I’ve noticed that my Suzuki Alto idles roughly, and the acceleration has become sluggish. Could bad spark plugs be the cause of these issues, and what are the other symptoms that suggest spark plugs need to be replaced?

Gari Specialist asked on 19 Feb 2025 16:50:56 pm

1 Answer

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Gari Master - on 19 Feb 2025 16:53:33 pm

Yes, bad o r worn spark plugs can definitely cause rough idling and poor acceleration in your Suzuki Alto. Spark plugs are crucial for proper engine combustion, and when they start to fail, the engine has trouble maintaining smooth operation.

How Bad Spark Plugs Affect Idling and Acceleration:

Rough Idling: When the spark plugs are dirty o r worn, the engine may misfire at low speeds o r idle, causing it to vibrate o r run unevenly. This results in a rough idle.
Poor Acceleration: Spark plugs that are not firing properly will not provide the necessary power to the engine, leading to sluggish acceleration and poor performance.
Unstable Engine: The engine may hesitate o r stutter when trying to accelerate, making it feel as though there is a delay in response.
Solution:

Replace the Spark Plugs: If youre experiencing rough idling o r poor acceleration, its a good idea to replace the spark plugs. If they are covered in carbon o r oil deposits, cleaning o r replacing them should resolve the issue.
Check the Ignition System: Along with replacing the spark plugs, it’s a good idea to have the ignition system checked for any other issues that could be causing these performance problems.