Two problems related to loud engine noise have been reported for the 2015 Nissan Pathfinder. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Nissan Pathfinder based on all problems reported for the 2015 Pathfinder.
Motor & fan assembly with shroud- fan is inoperative since a part on fan has broken. Vehicle is only working on one fan. Vehicle started making a loud noise when fan assembly would come on while driving.
The ac and heat fan makes loud sounds started in summer 2017. It's so loud that I have to turn it completely off now.