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Why does the new Jetta idle with intermittent shaking?

2 Answers

StPeter

07/24/25 4:39am

The most common causes of car shaking are a dirty throttle body or excessive carbon buildup in the fuel injectors. Below is an introduction to the new Jetta: Exterior Design: The headlights feature currently popular black backing frames, a refined and elegant chrome grille, and front and rear bumper designs that blend seamlessly with the Jetta's clean and robust body, making the integration of the front end, fenders, and side profile even more perfect. For the interior design, avant-garde, fashionable, and innovative elements are incorporated, creating a unified interior style with other in-car configurations that is both comfortable and aesthetically pleasing. In terms of vehicle dimensions, the interior space is more spacious, providing greater comfort and better meeting the needs of Chinese consumers for a dual-purpose family and business sedan. 1.4L EA211 Engine: The new Jetta 1.4L model is equipped with a 1.4L EA211 engine, which reaches its maximum power output of 66kW at 5500 rpm and its peak torque of 132N.m at 3800 rpm. This small-displacement engine not only offers users lower vehicle operating costs but also achieves energy efficiency and environmental protection.

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AaliyahRose

08/11/25 12:13am

My new Jetta keeps shaking at idle from time to time, which is quite annoying. It feels like sitting on a massage chair especially when waiting at red lights. The most common causes are aging spark plugs or faulty ignition coils leading to cylinder misfires, making the engine unstable. It could also be due to excessive carbon buildup in the throttle body affecting air intake; or clogged fuel lines causing dirty fuel injectors and unstable fuel pressure, resulting in shaking. When mine shook badly before, replacing the spark plugs helped a lot. I suggest first checking if the fuses aren’t blown, then try cleaning the throttle body or replacing the air filter—these are low-cost fixes you can do yourself. If it still shakes, head to the 4S shop immediately to avoid excessive engine wear, which affects longevity and fuel efficiency. Regular maintenance every 5,000 km can greatly reduce such issues.

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