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What are the causes of cylinder scoring in the Kia Sportage engine?

2 Answers

Emilia

09/01/25 6:36am

The causes of cylinder scoring in the Kia Sportage engine are: 1. Insufficient or interrupted supply of cylinder lubrication oil; 2. Inadequate running-in period followed by immediate high-load operation; 3. Excessive piston temperature leading to poor lubrication; 4. Excessive carbon buildup causing piston rings to stick in the grooves, losing elasticity, resulting in breakage or gas leakage; 5. Use of low-quality gasoline. Taking the 2019 Kia Sportage as an example, its body structure is a five-door, five-seat SUV with dimensions of: length 4460mm, width 1850mm, height 1695mm, wheelbase of 2640mm, fuel tank capacity of 58 liters, and curb weight of 1475kg.

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GabrielaLee

09/14/25 2:26am

Engine cylinder scoring is quite common on the Kia Sportage. I've encountered this issue several times myself, and it's mostly related to engine oil problems. It could be that owners neglect regular oil changes or use cheap oil, resulting in poor lubrication that causes excessive friction on the cylinder walls and leads to scoring. Cooling system issues are another critical factor - coolant leaks or fan failures can cause engine overheating. At high temperatures, components expand too quickly, literally scraping out damage. Driving habits also play a role. Consistently driving at low speeds with high loads (like climbing hills or hauling heavy loads) forces the engine to work hard without proper cooling, inviting trouble. Aged or deteriorated coolant should also be checked, and oil passage blockages are potential hazards. For prevention, I recommend checking the oil dipstick and coolant level monthly, using genuine parts, warming up the engine for a few minutes before long trips, and not waiting until you hear that terrible knocking sound to regret your negligence.

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