Will first replace the Fan Control Module which is on order and then the
brown thermalswitch, since the fan does cycle on and off every few seconds
when in idle and AC is on so that I can go back to the A/C place if it cuts
out again so that the electrical possibilities are ruled out. Think the
system is running only in the first fan speed and intermitently will jump
and drop out quickly from the second speed. Whats really bugging me is why
the compressor is making noise after about a year like it struggling and
then when the car is cool from start or if the temps outside are down it
works fine - no noise. I don't want to mess up the compressor since its
basically new as are the expansion valve and dryer.
"Woodchuck" > wrote in message
...
> 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?
>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>
>