What are the reasons for engine vibration transmitting to the cabin?
3 Answers
The reasons for engine vibration transmitting to the cabin are: 1. Severe engine carbon deposits: The gasoline sprayed by the cold start injector will be largely absorbed by carbon deposits, resulting in an overly lean mixture during cold starts; 2. Ignition system issues: Poor performance of the ignition system or suboptimal spark plug firing conditions; 3. Unstable oil pressure: Abnormal fuel pump supply pressure or incorrect readings from the intake pressure sensor; 4. Aging engine mounts: Engine mounts are responsible for absorbing minor vibrations during engine operation. Solutions for engine vibration transmitting to the cabin: 1. Clean the fuel system and check if the idle speed motor has carbon deposits that need cleaning; 2. Inspect the spark plugs for excessive carbon buildup and replace them if necessary; 3. Check the oil pressure and replace components as needed; 4. Replace the engine mounts.
As a seasoned driver with years of experience, I believe the most common cause of engine vibrations being transmitted to the cabin is the aging of engine mounts. These mounts originally act like cushions to absorb vibrations. Once they become damaged or loose, the engine's movement directly transfers to the chassis and cabin floor, especially noticeable during acceleration or uphill driving. Additionally, uneven spark plug ignition can exacerbate engine shaking, and wear in drivetrain components like bearings is another frequent culprit. These issues not only make driving uncomfortable but may also accelerate the wear of other parts, such as suspension or tire deformation. If ignored long-term, repair costs can escalate. Therefore, when experiencing vibrations, first check the condition of the mounts for cracks or deformations and replace them promptly if necessary to prevent minor issues from becoming major problems.
When I commute to work by car, I often feel that the engine vibration seeping into the car is quite disturbing. The main reason lies in the failure of the engine mounts, which normally isolate vibrations but become less effective when worn out; or due to poor fuel supply in the fuel system, causing unstable engine operation and spreading vibrations. Especially when starting at traffic lights or turning at high speeds, this kind of shaking is distracting. I recommend paying more attention to these components during regular maintenance, such as cleaning the fuel system or adjusting the ignition timing; if not handled properly, the vibrations will become stronger, affecting fuel consumption and driving comfort. By the way, seasonal changes with lower temperatures can thicken the engine oil, increasing resistance, which is also a factor that exacerbates vibrations. Maintaining good vehicle maintenance habits can effectively reduce such problems.
