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?
>>
>>
>>
>
>