Can a Misfiring Cylinder at Idle Still Run?
2 Answers
If the engine shakes at idle but runs fine when driving, then it is not a misfiring cylinder. If the engine shakes at idle, it may be due to a damaged throttle body or some sensors. If the engine has a misfiring cylinder, then one cylinder is not working whether at idle or while driving. Misfiring cylinders are mostly caused by faults in the ignition system. Introduction to the automotive engine ignition system: 1. The automotive engine ignition system mainly consists of an ignition coil and spark plugs. 2. Spark plugs are wearable parts that require regular replacement. If spark plugs are used for a long time, the electrode gap will widen, which can affect the spark plug's ignition. 3. Prolonged use of spark plugs can lead to carbon buildup on the electrodes, which also affects the spark plug's ignition.
I've repaired many cars before. Idle misfire means the engine shakes severely when stationary, with some cylinders not working. In this case, the car can still move, but the power will be greatly reduced, acceleration will be as slow as a snail, and highway driving will be more difficult. Never force it to drive, otherwise it may damage the engine, burn out the catalytic converter, or even cause an accident by stalling midway. It's recommended to immediately check the spark plugs or ignition coils and spend a few hundred dollars to replace them, saving unnecessary expenses later. Always pay attention to abnormal idle conditions when driving, and timely maintenance is the best strategy.
