NHTSA Complaint #11641113 — 2016 KIA SORENTO

The engine failed while driving. The dealer noted in case details they observed excessive scoring on the cylinder wall and damage to the piston ring, as well as a significant reduction in compression. Despite these findings the dealer and manufacturer said the repair "would not be covered under the PI campaign for engine failure" and "was not related to an engine rod bearing failure." Note that the dealer did not inspect the rod bearings. Worn or damaged connecting rod bearings can significantly reduce compression by allowing excessive piston movement and causing a leak in the combustion chamber. Moreover, excessive scoring on the cylinder wall indicates that the metal from failing connecting rod bearings has been scraping against the cylinder wall, leaving deep scratches and grooves, likely due to excessive wear on the bearings, causing significant damage to the piston and cylinder assembly. This model vehicle should have been included in the recall concerning connecting rod bearings that affected other Kia model vehicles.