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Is there a set rpm the stock fan clutch is supposed to disengage? I've been noticing that it'll stay locked all through the power band, at idle, almost constantly... then randomly it'll release.

I just got a new muffler that made my car really quiet... you can't hear the muffler if the fan is locked, just the fan. its fucking annoying and I hate it.


Is itj ust supposed to be like this? I never remember that happening on any of my friends supras or anything like that....
 

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the fan clutch is a viscous coupling. there is a bimetal strip that reactes to heat. that will engage or disengage the fan clutch.
 

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got any more info on this? like how it works or how hot it needs to get?
 
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