Jeep Grand Cherokee sudden vibration and power loss due to broken left camshaft bolts and P0306 error on Jeep Grand Cherokee

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Jeep Grand Cherokee owners report experiencing sudden vibrations and power loss, which may be attributed to broken left camshaft bolts and a P0306 error code. These broken bolts can lead to severe vibrations, loss of power, engine light illumination, and unusual noises. Additionally, the P0306 error code indicates a misfire in cylinder 6, resulting in rough idling, decreased fuel efficiency, and poor engine performance. Some owners have noted that these issues can cause the engine to sputter, lack acceleration, or even cut out completely while driving, potentially leaving them stranded. It is crucial for owners to address these problems promptly to prevent further engine damage and ensure the safety and reliability of their vehicle. Consulting a qualified mechanic for inspection and repair is highly recommended.

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