[s-cars] cooling fan kept running w/engine off and cold

[Pram]

> From: Pram <pramtt at sbcglobal.net>
> Date: Mon Aug 4, 2003  10:04:33 PM US/Pacific
> To: "Paul  Gailus" <gailus at mindspring.com>
> Subject: Re: [s-cars] cooling fan kept running w/engine off and cold
>
> Paul:
>
> That's what I thought in the first place but when I swapped the relay
> with another relay, the fan would be on also, so it doesn't look like
> the relay.  I'll have to see if the pump is on or not
>
> Thanks,
> Pram
>
>
> On Monday, August 4, 2003, at 09:47 PM, Paul Gailus wrote:
>
>> Pram,
>>
>> I would think that the delayed cooling fan relay itself is
>> most likely at fault.
>> Apparently SJM has seen them fail before:
>> http://www.sjmautotechnik.com/cooling.html#after
>> (see his comments on this page that are below his picture
>> of this "after-run relay.")
>>
>> If the fan came on only intermittently, then it might
>> be possible that the thermal switch on the coolant
>> manifold might be intermittently closing. However,
>> it's my understanding that the after-run delay relay
>> is supposed to time-out after a while to shut off the
>> fan & pump, even if the thermal switch stays closed.
>> So since the fan is staying on, it's probably a bum relay.
>> I'm assuming that the afterrun pump is also running
>> when the fan is running. It's easy feel the pump vibrating
>> when it's running. Of course, be very careful around this
>> pump if it's hot.
>>
>> Paul
>>
>>
>> ----- Original Message -----
>> From: Pram <pramtt at sbcglobal.net>
>> To: S-car list <s-car-list at audifans.com>
>> Sent: Monday, August 04, 2003 6:18 PM
>> Subject: [s-cars] cooling fan kept running w/engine off and cold
>>
>>
>>> Guys:
>>>
>>> My 1992 S4 is currently acting up.  The electric fan will start
>>> turning
>>> on and off even with the engine off and cold.  Usually it will run
>>> for
>>> 30sec to a minute but starting yesterday evening it has been running
>>> all the time (at the slowest fan speed).  The only way to turn off
>>> the
>>> fan was for me to pull the "delayed cooling fan relay" to prevent
>>> draining the battery.
>>>
>>> Anybody have any idea which sensor/controller I need to check and
>>> possibly replace?
>>>
>>>
>>> TIA,
>>>
>>> Pram
>>> 92S4
>>>
>>> _______________________________________________
>>> S-CAR-List mailing list
>>> S-CAR-List at audifans.com
>>> http://www.audifans.com/mailman/listinfo/s-car-list
>>
>