Saturn Vue rattling, rough running, and excessive smoking issue on Saturn Vue

Some Saturn Vue owners report experiencing rattling sounds from the engine, which could be attributed to exhaust issues, loose accessories, or timing chain problems. Additionally, some owners note that their vehicle runs rough, potentially indicating overheating, burning oil, or a melting wiring harness that causes excessive smoking. They also mention groaning and rattling noises from the front end, which may be linked to upper strut mount bushing problems. Furthermore, excessive smoking from the engine is reported, often resulting from overheating or burning oil, which should not be overlooked. Owners have observed that smoke production after extended driving, coupled with interior heat, may signal serious mechanical issues requiring immediate attention. It is recommended that owners diagnose the specific causes of these problems and seek professional assistance to maintain their Saturn Vue in optimal condition and prevent further damage.