What Causes Severe Engine Shaking in a Car?
2 Answers
Generally, there are four main reasons that cause engine shaking: 1. Ignition system malfunction. Solution: Check if the spark plugs have excessive carbon buildup and clean or replace them immediately if necessary. 2. Worn or loose engine mounts. Solution: Replace the engine mounts. 3. Carbon deposit issues. Solution: It is recommended to have the engine cleaned at an authorized 4S dealership. 4. Poor fuel quality. Solution: Clean the throttle body promptly. If the issue persists, take the vehicle to a 4S dealership for repair. Always refuel at reputable gas stations using the fuel grade specified by the manufacturer and perform regular maintenance.
The other day when I was driving to pick up my child from school, I felt the engine suddenly shaking violently, even the steering wheel was vibrating in my hands. There could be several reasons for this situation: the most common one is aging spark plugs or excessive carbon buildup, causing uneven ignition and missed firing opportunities; it could also be a clogged air filter, leading to insufficient air intake, making the engine struggle to breathe; additionally, a blocked fuel injector can prevent fuel from spraying properly, resulting in uneven combustion. If the ignition coil is faulty or there's poor electrical contact causing unstable voltage, the shaking can become more frequent. Ignoring it could lead to significantly increased fuel consumption in the long run, and the car might start making strange noises. For safety reasons, whenever I encounter this issue, I always check the spark plugs first and, if necessary, have a professional shop conduct a comprehensive inspection.
