Yo, so I have an 03 pathfinder. Upon cold start up my fanclutch is engaged for about a solid minute until it disengaged. It stays disengaged for a while until I hit a highway or try to drive up hill in which it kicks on high, causing me to loose tremendous horsepower to the point I can hardly accelerate. Just tapping the accelerator launches it to 3k rpm but doesn't further accelerate the car. I just replaced the fan clutch too, same exact problem as the old. I'm not running the ac nor is it really hot out. Any ideas?