Join Date: Apr 2009
Location: Vancouver, WA, USA
Re: cooling system question - 01 K12LTC
On mine, and I think this is the way the system is designed to work, the cooling fans come on at the little white mark just below the red line on the temp guage.
It is disconcerting to say the least but that's the way it was designed.
Mine runs down the road at just under half scale but if you whoa up at a light the engine will rapidly heat up. Summer, winter, fall, spring she will heat up. As soon as the needle hits the little magic white line the fans come on and she cools down quickly.
Sound like yours?
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