Chevrolet Express 3500 dashboard covered in white dust, possibly due to bad AC evaporator on Chevrolet Express 3500

Some Chevrolet Express 3500 owners report experiencing issues with a dashboard covered in white dust, which may indicate a bad AC evaporator. This problem can stem from a leaking evaporator core, leading to refrigerant escaping and leaving a powdery residue. To resolve this issue, it is recommended that owners have the AC system inspected by a qualified mechanic to identify the cause and perform necessary repairs or replacements. Additionally, regular maintenance of the AC system is advised to prevent such issues and ensure the efficient operation of the vehicle's cooling system.