Nissan Pathfinder radiator fan remains on constantly, making noise during acceleration on Nissan Pathfinder

Some Nissan Pathfinder owners report experiencing issues with the radiator fan remaining on constantly and making noise during acceleration. This may indicate a malfunction with the fan itself, as a loud noise during acceleration can suggest problems that need attention. Additionally, some owners have noted that continuous operation of both fans, regardless of the A/C status, points to potential issues with the fan or relay assembly, especially if aftermarket parts have been used. The arrangement of fans in the R52 model may also lead to premature failure, causing common noises like "freight train" or "clacking" sounds. Furthermore, in belt-driven fan systems, a malfunctioning clutch could result in the fan running continuously, contributing to the noise. If the fan controller, IPDM, or ECT sensor is defective, it may cause the fans to run at partial speed, leading to overheating and noise during acceleration. It is recommended that owners have their fan system inspected by a qualified mechanic to diagnose and resolve these issues.