That may seem true, Mike, but it isn't.
The PS pump is constantly creating pressure that is not used and is bled back into the
low pressure side.
Your PS pump will work no harder with a fan making use of the normally 'wasted'
pressure. Trust me. The engineers have done a really good thing here.
Marty
'00 4.7L cc Dak
Michael Kuriger wrote:
> Remember, you never get anything for free. Although there is PS fluid flowing,
> adding a resistance to it will just add drag from the PS pump itself. Same as an
> electric fan. It just adds drag at the alternator.
>
> I did a test today. I have no direct fan, just the electric AC fan. I also have
> the stock 195 thermostat. With the truck idling, the engine quickly warmed up to
> normal. I turned on the AC and the electric fan kicked on. the temp stayed about
> the same (on the guage) It was reading about half way between 210 and and the next
> line down (the 160 mark?) I turned off the AC and let the truck idle for about 20
> minutes. The temp slowly crept up almost to the 210 mark and the electric fan came
> on. The temp quickly went back down to normal and the electric fan stayed on. I
> turned the AC back on, no change. I turned the AC off, electric fan was still on.
>
> So I'm guessing there is some sort of logic controller for the electric fan. Is it
> possible the computer will adapt to not having a manual fan and start using the
> electric fan more often?
>
> Also - what is the procedure for reesetting the computer? Is is as simple as
> pulling a fuse of negative battery terminal?
>
> Thanks!!!
>
> --
> -=Mike Kuriger
> 1991 Isuzu Impulse RS 1.8
> 2000 Dodge Durango SLT 4x4 4.7
> http://www.isuzu-mods.com
> http://www.twistedbits.net/WWWProfile/dakota/NgFQdD9vkNHNg
>
> Jim Miller wrote:
>
> > Anybody see the fan used on late model Camrays and Lexus models? It is neither
> > electric or driven by the engine belts rather it uses the flow of otherwise
> > wasted power steering fluid already circulating in the power steering system.
> > Now we all have a power steering pump that runs all the time and I don't think
> > any of us would want no power steering on our daks so what does it cost to let
> > it run the fan to cool the radiator. It is silent also. Find one and check it
> > out! I think it is on all late model V6 and maybe V8s also. They have been
> > using this fan for several years. It uses very little underhood space also.
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