Why Does My Hyundai Tucson’s Engine Stall o r Hesitate and Could Spark Plugs Be the Cause?

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Why Does My Hyundai Tucson’s Engine Stall o r Hesitate and Could Spark Plugs Be the Cause?

Lately, my Tucson’s engine hesitates o r stalls at low speeds o r idle. Could faulty spark plugs be responsible for this behavior? What troubleshooting steps can I take before visiting a mechanic here in Pakistan?

Gari Specialist asked on 14 Jun 2025 12:08:08 pm

1 Answer

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Gari Master - on 14 Jun 2025 12:10:21 pm

Engine stalling o r hesitation in your Hyundai Tucson can indeed be caused by faulty o r worn spark plugs. Spark plugs are critical for igniting the air-fuel mixture in the engine cylinders, so if they are fouled, worn, o r improperly gapped, they may misfire o r fail to ignite consistently. This results in the engine hesitating when you accelerate o r stalling at idle o r low speeds. In Pakistan’s climate and fuel environment, spark plugs can get dirty o r wear faster, leading to such symptoms. Besides spark plugs, other causes like clogged fuel injectors, faulty ignition coils, o r air intake issues could also cause hesitation o r stalling. The best troubleshooting step is to inspect and possibly replace the spark plugs with recommended types. Additionally, a professional diagnostic scan can help rule out other causes. Regular maintenance, good fuel quality, and timely spark plug changes often prevent these issues.