Hyundai Tucson engine knocking issue possibly related to faulty lifter after engine replacement on Hyundai Tucson

Some Hyundai Tucson owners report experiencing engine knocking, which could be linked to a faulty lifter after an engine replacement. This knocking can stem from various factors, including the use of low-quality fuel or an incorrect octane rating. Notably, the 2017 Tucson faced a significant recall affecting 95,515 vehicles due to faulty connecting rod bearings, which contributed to engine knocking issues. Other common causes include low oil levels, ignition problems, timing issues, and worn engine components. Owners should be aware that engine knocking may indicate serious engine problems that require immediate attention to avoid further damage. Accurate diagnosis is essential, starting with checking the check engine light and using an OBD-II scanner to retrieve diagnostic trouble codes. If a faulty lifter is suspected, it is vital to have the vehicle inspected by a qualified mechanic to identify the source of the knocking and ensure the Tucson's optimal performance.