I think most thermostatic fans do this. It may be that when engines are cold the fanclutch is stiff and wont disengage for a
few minutes. Then it seems that your engine is reved up more than it really is. After a few minutes the fan clutch will
release and coast which makes the engine seem to slow down. Then if the fanclutch is a good one it will rengage whin the
airflow to it gets pretty hot.
Michael Ging wrote:
> Mike wrote:
>
> > > I notice, only when dead cold, first thing in AM, a LOT of engine
> > > fan noise, and the shift points are way up, even under very light load. After 2-3 min, the fan/air noise settles down.
>
> Jeff Lee wrote:
>
> > I also notice a LOT of fan/air noise after the engine is first started
> > and cold. I agree, it seems as though the thermal clutch works
>
> For what it's worth, my '98 V8 also does the exact same thing.
>
> Mike Ging
> ging@mticentral.com
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