I have a 92 Sentra SE-R. When my AC is on, my fans do not stay on all the time. They keep cutting on and off. Because of this, my car overheats (especially on the highway) when it is 90+ degrees outside. Can anyone tell me how I can fix this problem? Is there a sensor or a wire that I need to look for? Please help!

thanks in advance

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http://www.sr20deforum.com/showthread.php?threadid=24311