Lincoln MKX rotten egg odor and grinding noise due to faulty PTO unit replacement on Lincoln MKX

Some Lincoln MKX owners report experiencing a rotten egg odor, which can indicate various underlying issues such as a failing catalytic converter, fuel system problems, or electrical issues. This unpleasant smell often arises when the catalytic converter is unable to properly process sulfur compounds in the exhaust, potentially signaling a clogged or overheating component. Additionally, some owners report hearing a grinding noise related to a faulty Power Take-Off (PTO) unit replacement, which may suggest a mechanical problem that requires immediate attention to prevent further damage. It is crucial for owners to address these issues promptly and consult a qualified mechanic for accurate diagnosis and necessary repairs to ensure the vehicle's safety and performance.