If your Nissan Pathfinder is overheating, or the temperature gauge reads high and then drops back down intermittently, there may be an issue with the radiator fan. In some cases, the entire fan assembly will need to be replaced. The cost of this repair will vary depending on the year and model of your Pathfinder, as well as the labor costs at your local repair shop. However, you can expect to pay anywhere from $200-$500 for this repair.