rad fan doesn't stay on when the car is off...

[L DC]

Kurt what do you mean by "back of coolant neck"?

Do you mean the back of the upper radiator hose (short
and curved) aluminum outlet?

Thanks,

LDC


--- Kurt Deschler <desch at alum.wpi.edu> wrote:

> 
> The afterrun is controlled by the thermal switch on
> the back of the 
> coolant neck. If you short the contacts together
> with the car off, it will 
> turn on. It typically only comes on in the summer.
>  	-Kurt
> 
> > Message: 2
> > Date: Fri, 15 Sep 2006 11:14:39 -0400
> > From: Kneale Brownson <kneale at coslink.net>
> > Subject: Re: rad fan doesn't stay on when the car
> is off...
> > To: tmb
> <the_questionist at yahoo.com>,quattro at audifans.com
> > Message-ID:
> <4.1.20060915110739.01144788 at pop.powerc.net>
> > Content-Type: text/plain; charset="us-ascii"
> >
> > Does the turbo cooling pump run when the injector
> cooling fan runs?   I
> > think the radiator fan is supposed to run when the
> auxiliary pump for turbo
> > coolant runs, but only if under-hood temperatures
> are sufficiently high.
> > I don't recall how my former 5ktq ran, but in my
> 200q20v, the radiator
> > fan/turbo coolant pump operation only occurs after
> shut-down if the
> > underhood temperature calls for them to run.  The
> injector cooling fan may
> > be keyed to run regardless of the sensor
> controlling the other two.
> >
> >
> > At 07:43 AM 9/15/2006 -0700, tmb wrote:
> >
> >>
> >> as soon as the car is turned off, the rad fan
> >> stops.  the injector fan will keep cycling as
> >> normal, but no rad fan.
> >>
> >> i'm concerned.  anyone have any suggestions?
> >>
> >> jason
> >> tmb
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