1998 Buick Century tempurature gauge goes above mid point

1998 BUICK CENTURY
100,100 MILES • 6 CYL • FWD • AUTOMATIC
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BUTTONS2365
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when sitting in traffic my tempuratue gauge goes past the mid point i have no leaks in the cooloing system it has been preasure tested good my electric fans work only when i put the ac on shouldnt they also come on when the temp reaches a certain point?
the thermostat has also been tested good im thinking either a temp sensor or a fan control module
any help would be appriciated
Mar 22, 2009 at 12:08 PM
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