1997 grand am cooling fan

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  #1  
Old 03-20-08, 03:32 PM
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1997 grand am cooling fan

anyone know what turns cooling fan on in 1997grand am 2.4l engine?after idling @20 minutes fan would not come on until i turned defrost on(started a/c compressor)........so i know fan motor is ok.....radiator fins got so hot i couldn't keep my hand on it....temp gauge showing mid range....what tells fan to turn on?...thanks!
 
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Old 03-20-08, 05:05 PM
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the computer turns the fan on and off based on the reading it receives from the coolant temp sensor it doesnt usually come on till around 230 degrees so you may of not of let it run long enough if it was from a cold start up if your not having overheating issues you may not have a problem.
 
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Old 03-21-08, 03:35 PM
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And probably a fan relay also.
 
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