[V8] Radiator Auxiliary Fan Functioning Question

[Jeremy Ward]

This was one of the best posts I have read on this forum.  Thanks KT!

http://www.audifans.com/twiki/bin/view/Audi/HotRunningTempSensors 

Gunter,

Have you also checked the fuse on the heavy gauge wire leading from the
electric fan?  There are 2 Phillips screws holding the fuse in the holder;
if you remove one screw and half of the fuse comes with it, you've found the
culprit...  ;-)

Cheers,

- Jeremy

-----Original Message-----
From: v8-bounces at audifans.com [mailto:v8-bounces at audifans.com] On Behalf Of
Gunter Lorberg
Sent: Sunday, April 02, 2006 12:47 PM
To: V8 at audifans.com
Subject: [V8] Radiator Auxiliary Fan Functioning Question

Spring has only just arrived and already the temp gauge needle has once gone
over the 100 mark on a steady hill climb in moderate, but humid, temperature
conditions.
 
I know that I need a replacement radiator--that project is already in
progress...I had elevated temp gauge needle problems repeatedly last summer
in hot, stop-and-go driving conditions....never overheated, however.
 
I was wondering whether the electric auxiliary cooling fan system was still
functioning properly as I suspected it was malfunctioning late in the fall
last year (but did nothing about it)....I believe that the fan was just not
coming on...can no longer recall 100%, however.
 
I thought that one way of testing the system would be to test the thermostat
switch on the bottom of the radiator by bypassing the switch and bridging
the connector.....doing so I expected the fan to come on but nothering
happened.......the electrical contacts are not corroded and the metal fuse
on the driver's side strut tower is intact (I even checked for conductivity
given that a few years back a previous fuse was broken but this was not
readily apparent until after loosening the fuse fasteners).
 
I guess that my bottom line question for anyone is how should I be going
about checking the operation of the auxiliary cooling fan system?  There has
to be a simple way of approaching this........
 
 
The car is a 1990 with automatic and 190 000 miles.
 
 
Got my first speeding ticket of the year on the I-90 on Friday night east of
Rochester....despite having a new Valentine 1.......I guess that I had
become too complacent in my stealth driving techniques as of lately........I
wasn't tailing anyone else, for example......I will find a way to fight it!
 
 
 
Thanks.
 
Gunter Lorberg
Toronto/Ithaca, NY (I spend my weekends in the USA)
(2) 1990 'Canadian' V8's with automatics
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