Jeep Liberty wouldn’t start, was shaking and had check engine light and red lightning bolt light on

 If your Jeep Liberty is experiencing these symptoms, it indicates that there may be an issue with the engine or the electrical system. The combination of a shaking engine, a check engine light, and a red lightning bolt light typically points to a problem with the throttle control system.

The red lightning bolt light is associated with the Electronic Throttle Control (ETC) system, which manages the throttle opening in modern vehicles. When a fault is detected in this system, the ETC light illuminates to indicate a problem. The check engine light, on the other hand, can illuminate for a variety of reasons, as it is a general indicator that there is a fault or malfunction in one of the vehicle's systems.


There are several possible causes for these symptoms, including:

  1. Throttle body issues: The throttle body may be dirty or malfunctioning, preventing it from opening and closing properly, which can lead to shaking and loss of power.

  2. Faulty throttle position sensor (TPS): The TPS provides information about the position of the throttle to the engine control module (ECM). If it is sending incorrect signals, the engine may not be receiving the appropriate amount of air or fuel, causing the symptoms you described.

  3. Wiring or connection problems: Electrical issues, such as damaged wiring or loose connections, can disrupt the communication between various engine components and sensors, leading to the symptoms you experienced.


To address this issue, it is recommended to take the vehicle to a qualified mechanic or a Jeep dealership. They will be able to diagnose the problem accurately using specialized diagnostic equipment. The diagnostic trouble codes (DTCs) stored in the vehicle's computer will provide valuable information about the specific issue causing the symptoms. Once the problem is identified, the mechanic can perform the necessary repairs or part replacements to resolve the issue and get your Jeep Liberty running smoothly again.

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