The only time the fan goes to 3rd speed is by last resort to save the engine
from atomic melt down if speeds 1 & 2 are dead. The 3rd speed may come on if
you are driving through "Death Valley" but I wouldn't know because it's one
place on earth I don't want be be in.


"News" > wrote in message
. ..
> Well, jumpered the connector on the BROWN sensor at the thermostat and
> definately got the highest speed fan. And I did notice that the fan was
> switching on but not superspeed and the relay seemed to be clicking - so
> I'm assuming that the BROWN sensor is most likely shot. Whats a little
> strange is that the afterrun fan doesn't appear to be working either - so
> maybe the control unit is gone as well.
> "Woodchuck" > wrote in message
> ...
>> That's a multi speed fan and you need to check the speeds first. With the
>> AC on the fan should run at low speed. as temps go up it will jump to the
>> 2nd speed. If it sounds like a jet engine, then it's on the 3rd speed.
>>
>>
>> "S Timinski" > wrote in message
>> m...
>>> 95 GTI VR6 with 140K miles and "running" strong except - yesterday temps
>>> were in the 90's and in traffic my AC started making a growling noise
>>> then shut down and then turned on after a few seconds then off. After
>>> car started moving turned system back on - quickly cooled no problems.
>>> During idle high speed fan will turn on for a few seconds then switch
>>> off and then cycle again. Took the car to an AC specialist - but not VW
>>> specialist and said pressures were fine but he did notice the fan
>>> switching on and off which could if the outside temps were high enough
>>> could cause the system to get too high of pressure and shut down the
>>> system since the fan isn't really cooling down the coil. Ok, but what
>>> would fix the problem - radiator switch, switch located on the
>>> thermostat housing or is it the Fan Control Module?
>>> Is there a way to test the Fan Control Module?
>>>
>>>
>>>
>>
>>
>
>