GTV6 overheats - engine/radiator fan won't come on

[Robert Abatecola <robert@domain.elided>]

Hi everyone.

My GTV6 overheated today.  I determined that the right radiator fan 
would not come on.  I could get the left fan to come on by turning on 
the A/C and thus was able to keep it cool enough to get it to a 
reasonable parking place (meaning really HOT but no temperature 
light).

I tried swapping the horn relay with the fan relay but it didn't 
help.  I didn't think it would anyway since the left fan worked with 
A/C (and I could hear the relay click when it did).  I checked the 
voltage at the right fan and got zero, as expected.  That's all I had 
time for given that it's not here at home.

It seems clear that the thermal switch has failed.  The shop manual 
doesn't say how to test it but I imagine that it's a simple 
open/close switch.  Is it worth testing or should I just get one and 
replace it?  Does anyone near San Jose or Monterey/Carmel have one 
they would part with this weekend?

Thanks!
--

 -Robert Abatecola, San Jose, CA
  1985 GTV6
  1987 Spider Quadrifoglio
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