That interesting.Just curious...do new fan clutches (for 01 4.7) need any kind of breaking in period? I replaced my 20-yr-old OEM (even tho it seem to be working) and the new one makes for a bit more of noticeable fan noise, even at highway speeds, whereas the old one made none. Old one never had any temp issues either.
With the engine not running, does the fan spin relatively freely by hand?A few nights of 70's-ish degrees and the fan clutch still sounds like a jet engine. Gonna give it another month then consider replacing it again. Hard to believe it could be bad. Just hate hearing it waste horsepower. Good thing I don't drive it much.