Kia Sedona engine failure after rebuild and computer replacement, with repeated repair attempts by dealership on Kia Sedona

Some Kia Sedona owners report experiencing engine failure issues after a rebuild and computer replacement, often following multiple repair attempts by the dealership. These owners note that engine computer failure is not uncommon in their vehicles, and critical engine failures, such as seizures, have been documented across various mileage ranges. They emphasize the importance of addressing engine issues promptly to maintain safe vehicle operation, especially when warranties cover components like the engine block. Additionally, when considering engine replacement, some owners find it crucial to determine whether the entire engine/transmission assembly needs replacement or if only the engine block can be swapped. Furthermore, resolving engine-related problems may require replacing components like the crankshaft sensor or fixing issues with the catalytic converter, which can lead to jerking problems, though these repairs can be costly. It is recommended that owners work closely with their dealership or a qualified mechanic to accurately diagnose and effectively resolve these complex engine issues.