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Super Moderator
White Diamond '03 DHS (with DTS floor shift)
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86,779 Posts
Why?

Put the system in defrost mode. That should engage the A/C compressor and the fans come on anytime the compressor is engaged.
 

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Administrator
2002.5 F55 CORSA STS, 2014 Explorer XLT FWD
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68,403 Posts
Welcome Aboard !!! :highfive:

Go down to the Engines; Northstar forum and read the sticky posts concerning fan operation, gauge operation and cooling systems.
 

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Master of the Dark Art of Diagnostics
2003 DHS - two-2002 DHS, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
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19,249 Posts
want to know how to tell if the cooling fan is working
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the fans should come on with the AC compressor -

they also come on low when coolant temp reaches 224 -
and high when coolant temp reaches 236 -
 

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Registered
2001 Seville STS, 1990 Seville (RIP), 1972 Sedan Deville
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26,323 Posts
basscatt said:
---------------------------- the fans should come on with the AC compressor - they also come on low when coolant temp reaches 226 - and high when coolant temp reaches 236 -
:yeah: Nitpicking - Low is 224.
 

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Registered
2001 Seville STS, 1990 Seville (RIP), 1972 Sedan Deville
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26,323 Posts
It's been dug out since the day after the largest storm. I love driving in this stuff :yup: It's been fun other than both of my bumpers being destroyed...
 
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