What Causes Intermittent Idle Shaking in the New Jetta?
2 Answers
The causes of intermittent idle shaking in the New Jetta include: clogged fuel injectors, severely eroded spark plug electrodes, excessively dirty throttle body, unstable fuel pressure, etc. Additional information about the New Jetta is as follows: Exterior Design: The New Jetta continues Volkswagen's cutting-edge design philosophy while incorporating the latest styling concepts - featuring headlights with trendy black backing frames, refined and bold chrome grille, and seamlessly integrated front/rear bumpers that perfectly blend with the Jetta's clean, muscular body lines for superior integration between front end, fenders and side profile. Interior Design: Incorporates avant-garde, fashionable and innovative elements that harmonize with other cabin features to create a unified, comfortable and aesthetically pleasing interior. The optimized vehicle dimensions provide more spacious cabin room and enhanced riding comfort, better meeting Chinese consumers' demands for family-commercial dual-purpose sedans.
The intermittent idle vibration issue with the new Jetta has happened to me several times. As a Volkswagen owner, I believe the main cause could be carbon buildup in the fuel injection system, especially when doing lots of short urban trips - clogged injectors lead to uneven fuel supply. Dirty throttle bodies or aging spark plugs can also make the engine shudder at red lights. Last time I had severe shaking, I checked the ignition coil and found the insulation was damaged - replacing it fixed the problem. I recommend regular cleaning of the fuel system and air filters, and avoiding low-quality gasoline which tends to form deposits. If left unrepaired, prolonged idle vibration will increase fuel consumption and reduce power, costing more in the long run. Get your intake system or sensors checked promptly to prevent minor issues from escalating.
