What are the causes of idle vibration in Hyundai Verna?
2 Answers
The causes of idle vibration in Hyundai Verna are: 1. Severe engine carbon deposits; 2. Ignition system malfunction; 3. Unstable oil pressure. Taking the 2020 Hyundai Verna as an example, its body structure is a 4-door, 5-seater sedan with body dimensions of: length 4510mm, width 1765mm, height 1470mm, and a wheelbase of 2650mm. The 2020 Hyundai Verna features a MacPherson strut front suspension and a torsion beam rear suspension. It is equipped with a 1.6L naturally aspirated engine, delivering a maximum horsepower of 123PS, a maximum power of 90.2kW, and a maximum torque of 150.7Nm, paired with a 6-speed automatic transmission.
The Hyundai Accent I drove the other day would suddenly jerk a few times while idling at a red light, quite noticeably. I figured it might be an issue with the ignition system. If the spark plugs are worn out or severely aged, their ignition efficiency drops, causing engine vibration—a common issue in many cars. Additionally, excessive carbon buildup in the throttle body can obstruct airflow, leading to unstable idling. Insufficient fuel pump pressure or clogged fuel injectors could also contribute to the problem. I’ve also heard that if the engine mounts are worn out, their damping effect weakens, making the vibrations more pronounced. For the Accent, especially as it ages, it’s best to regularly inspect these components. Replacing the spark plugs usually alleviates much of the issue, preventing bigger headaches down the road. If DIY fixes don’t work, getting a mechanic to take a look is worth the small cost—better than risking a breakdown midway.