My truck is a 1997 GMC Sierra with a 5.7l Vortec engine and 80,000 miles. The fan only works on high. The blower motor itself is only 2 months old so that shouldn't be the problem. Is it the switch or is there some sort of regulator between the switch and fan that has blown?
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Saturday, November 3rd, 2007 AT 11:00 AM