What Causes Engine Vibration in the Elantra?

[SanLeonardo]

Reasons for car vibration: 1. Carbon deposits: Excessive carbon buildup inside the engine cylinders can lead to clogged spark plugs and valves, directly causing vibration during idling. If the vehicle's acceleration performance has significantly declined with persistent vibration, an engine cylinder cleaning may be necessary. 2. Fuel supply system: Faults in the fuel supply system causing unstable fuel pressure can result in inconsistent air-fuel mixture concentration, leading not only to vibration but also unstable idling. 3. Engine mount deterioration: Worn engine mounts are a very common cause of vibration. If the engine vibration worsens over time without corresponding loss of power, the engine mounts should be inspected. 4. Misfiring: Misfiring issues stem from problems with the engine ignition coils or spark plugs. If the ignition coils malfunction or spark plugs fail to fire for any reason, the vehicle will exhibit vibration symptoms.