88 90 - rad fan wont turn off

j fizz iin10ded at hotmail.com
Mon Dec 23 18:54:06 EST 2002

thanks, ti

>No, the radiator fan is not controlled by the multi-function thermo
>sensor.  It has its own thermoswitch located at the radiator.  Also,
>having the A/C compressor on will also run the fan at low speed.

i know the ac will turn the fan on low... but it was staying on full blast.
im beginning to suspect the rain has done a bit of damage.. just now the
rear defroster is inop. i seem to have several gremlins.

>Make sure your A/C is off, then, unplug the electrical connections to
>your radiator thermoswitch, and if the fan turns off, then your
>thermoswitch ist kaput.  If the fan still runs even with the switch
>disconnected, then the radiator fan relay is probably stuck on.

ill try that. i dont know why these problems seem so much harder to break
down at 730 at night on the side of the road, freezing your @ss off
troubleshooting with a keychain light. =)

>Your coolant temp gauge, on the other hand, *does* use the multi-function
>thermo sensor.  So if the gauge is erratic, there's a good chance that
>sensor is also on the blink.

and that's been on the replace roster for too long already.

thanks much for the help.


Add photos to your messages with MSN 8. Get 2 months FREE*.

More information about the quattro mailing list