[s-cars] Fan works, just doesn't come on.....(Formerly Electric Fan not working)

[djdawson2 at aol.com]

Here here... agreed.
 

 

 

-----Original Message-----
From: Qshipq <qshipq at aol.com>
To: Jim Fleischer <jim at almgt.com>; s-car-list <s-car-list at audifans.com>
Sent: Fri, May 17, 2013 10:18 pm
Subject: Re: [s-cars] Fan works, just doesn't come on.....(Formerly Electric Fan not working)



Pull the belly pan and look for the temp sender on the DS radiator end cap. 
 Pull the 3wire connector off temp sender.  On the wiring plug side jump 
positions 1-2 med speed fan then 1-3 high speed fan.  If this operates the 
respective fan speeds replace radiator sending unit ---  you describe classic 
radiator fan switch failure. If you have an overheat warning the a/c should shut 
down which means the aux fan is also shut down.  IIRC on the S-cars that 
overheat warning is triggered by the MFTS and/or low coolant level - that 
circuit is T'd together.

Could be the MFTS is bad too...  Or because your rad fans aren't functioning the 
MFTS is actually doing its job?

Bet this car fails the rad temp sender check.

HTH

Scott J



Sent from my Samsung Epic™ 4G TouchJim Fleischer <jim at almgt.com> wrote:Okay 
guys,

Here's the latest....

With the car on, I jumped both fan related relay positions in the fusebox and 
the fan worked at their proper speeds relating to each relay......one slow, one 
fast.  I switched the relays around, even with another of the same type in the 
fuse panel related to the amplifier.....no change.....I still get the temp 
warning light 20-30 seconds on startup and the a/c doesn't make the fan come on 
either.....

So, the fan works, but I couldn't make it go on from either the Thermo switch or 
the Multi-function sensor.  Nor will it come on with the A/C.

Sooooo......thoughts?

Thanks guys......have a great weekend!

Jim Fleischer
'95 urS6 avant......soooo close
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