
Reasons and solutions for engine shaking are as follows: 1. Dirty air filter: The air filter is designed to protect the engine and reduce wear, usually requiring replacement around 10,000 kilometers. If not replaced in time, insufficient air intake can cause low idle speed, leading to engine shaking. Simply replacing the filter can solve the problem. 2. High-voltage line break: A high-voltage line break refers to the breakage of the conductor core inside the high-voltage line, causing engine shaking. Use a multimeter to measure the resistance and replace the one with significantly higher resistance. 3. Spark plug lifespan: Spark plugs have a lifespan, and after 30,000-40,000 kilometers, their ignition efficiency significantly decreases, affecting ignition. This is the most common issue, and replacing all spark plugs can resolve it.

I've been driving for many years, and when the engine shakes, I usually start checking from the easiest points. Last time I encountered this issue, I manually inspected the spark plugs. Worn-out spark plugs can cause irregular ignition in a cylinder, leading to noticeable overall shaking. Then, I checked the air filter—if it's too dirty, air can't get in, causing unstable engine operation, so it needs regular replacement. The fuel system is also a key focus. Clogged fuel injectors can lead to deviations in the air-fuel mixture concentration, causing shaking. I tried adding some cleaner to solve minor issues. Additionally, aging engine mounts or loose screws can transmit extra vibrations, which require professional tightening. Don't delay the whole process; address it early to avoid burning oil or affecting other components. Simple tools can handle DIY checks for most situations—it's time-saving and practical.

As a young person driving my first car, engine shaking made me flustered. I learned some knowledge online: spark plug issues are the most common, especially after years of use when the filament burns out—replacing them can make things much smoother. Ignition system failures, like a bad coil, can also cause a cylinder to misfire, directly leading to engine shaking. Fuel problems shouldn’t be ignored either; dirty fuel injectors or poor fuel quality can affect combustion efficiency. I recommend beginners regularly check these components to avoid breakdowns while driving. If you encounter shaking, don’t panic—first pull over and inspect. If the issue is serious, take it to a repair shop for diagnosis. This experience taught me to prioritize routine maintenance, like checking basic parts every 5,000 kilometers.

From an experienced driver's perspective, engine vibration can stem from various causes. Ignition system: Worn spark plug electrodes or aged high-voltage wires may require replacement or testing. Fuel supply: Clogged injectors or insufficient fuel line pressure can be alleviated by cleaning or replacement. Air system issues like malfunctioning mass airflow sensors or blocked air filters should be prioritized. Mechanical factors: Damaged engine mounts can amplify vibrations. Address issues progressively: Start with simple DIY fixes like replacing spark plugs and filters, then use diagnostic tools if problems persist. Quick repairs prevent more severe damage (e.g., catalytic converter failure) and lower costs.

I always try to save money when driving, so I handle engine shaking issues myself. The first step is simple: check if the engine oil is sufficient or dirty, and top it up if needed; if the air filter is clogged, buy a new one online and replace it; if the spark plugs are old, just buy cheap replacements and try them out. If the problem is carbon buildup, use throttle cleaner spray, which solves many minor shaking issues. If the mounts are loose, tighten the screws yourself to save on repair costs. Only when all else fails do I go to the shop, and I always read the fault codes in advance to find the cheapest solution. Regular minor maintenance prevents these issues, and fuel-efficient driving extends part lifespan—killing multiple birds with one stone.


