Why This EcoBoost Engine Lost Compression on Cylinder 3: A Borescope Log
It was supposed to be a spark plug. The owner of this 2017 Ford F-150 2.7L EcoBoost had already replaced the cylinder 3 plug twice in eight months. Both times, the P0303 cleared, the rough idle smoothed out, and the truck drove normally for a few weeks before the misfire came back. The third time […]