5 Explanations Behind Car Engine Vibration

While it may be expected for a car engine to vibrate when in good working condition, this vibration may go beyond what is normal, and you may experience clanking sounds from under your hood. Normal engine vibrations come from the movement of the transmission, crankshaft, or other engine parts.

Any engine parts may be at fault if you are getting above-normal vibrations. Therefore, it is crucial to identify the cause of those vibrations or take your vehicle to an auto repair shop so that they can assist.

Some of the most frequent causes of engine vibration are explained here to help you identify what may be happening to your vehicle.

The Spark Plugs May Be Worn or Damaged

Old, worn spark plugs commonly cause a car engine shaking. When a spark plug is not working correctly, the gas-air mixture cannot be appropriately combusted in the engine’s cylinders. When this happens, it is called misfiring. When the cylinders misfire, the engine vibrates when the car is both idling and running. The easiest fix to this problem is replacing the spark plugs. The shaking of the engine should stop immediately after replacement.

The Timing Belt

The timing belt is essential in the, well, timing of the engine. If the timing belt does not function properly, the components of the engine malfunction and cause vibration. Any belt-driven part of the engine, like fans, will not work correctly if the timing belt has come loose or has received damage. As a result, you will feel shakes and hear rattling sounds in the engine. You can look at the belts to ensure they are the proper tightness and that there is no visible damage. Timing belts may be appropriately fitted or replaced to resolve this issue.

Hoses are Not on Properly

A third reason the engine may vibrate is a loose hose or one that has become detached. Engine hoses carry the gas and air mixture, fluids, or vacuum around the engine. When this system is open, and items are not sufficiently provided where needed, it may cause vibrations. You will experience these vibrations both while driving or idling. The issue may be resolved by reattaching the hoses or replacing damaged ones.

The Fuel Intake System

The fuel intake system needs to be calibrated so that the correct ratio of gas and air is taken into the combustion chambers. If the engine is receiving improper amounts, the engine may produce vibrations. Sometimes the idle speed on the carburetor needs to be adjusted. Sometimes cleaning the fuel intake system is what can remedy this issue.

Motor Mounts

Finally, the motor mounts may become damaged and cause the engine to shake while idle. The motor mounts support the engine, hold it in place, and absorb natural engine vibrations and shock from the uneven road. A professional auto repair mechanic can replace the motor mounts if that is the cause of the vibrations.