2006 Sierra Cooling Fan Operation

By temgrumpy
July 19, 2010 in Ask A GM Technician

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temgrumpy

Posted July 19, 2010

At what temperature should cooling fan(s) come on? I have a 2006 gmc sierra 1500 2/w 4.3 ext cab w/t. Thermostat opens at 205 degrees. Both fans come on at 210 degrees. Is this normal operation?

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