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

[Kurt Deschler]

Yes the one that bolts to the head.

On Fri, 15 Sep 2006, L DC wrote:

> 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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>>
>
>
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