The Nissan Path

When driving my fan doesn't shut off and squeals at high rpms and sounds like a semi coming down the street? Ideas on what needs replaced? #fanclutch?

If you are referring to the mechanical fan (as opposed to the electric fan), it's likely to be a bad fan clutch. There have been a few reported on the forums with similar symptoms. There have also been some problems with the aftermarket versions of them, so stick with the genuine Nissan part.