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How to Determine if a Car Has a Misfiring Cylinder?

1 Answers

VanCarson

07/30/25 5:30am

Methods to determine if a car has a misfiring cylinder: 1. At idle, if the car body shakes noticeably, observe the exhaust pipe outlet. If the exhaust gas flow shows obvious intermittency and the exhaust pipe shakes violently, accompanied by a clear "popping" sound, it indicates a misfiring cylinder; 2. At low RPM, if the car body shakes and acceleration feels weak, but the shaking reduces at high RPM, it signifies a misfiring cylinder; 3. Touch the insulator of the spark plug with your hand—if it feels cooler, it indicates the engine has a misfiring cylinder. The car engine is the device that provides power to the car, determining its power, fuel efficiency, stability, and environmental performance.

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