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While driving the cooling fan won't come on which causes the car to run hot
1999 Pontiac Grand Am

While driving the cooling fan won't come on which causes the car to run hot

(1999 Pontiac Grand Am)
While driving , the cooling fan won't come on, which causes the car to run hot.
1 answer & 0 comments
Popular Answer
on October 25, 2010
Running hot and overheating are two different things. How hot is your 1999 Pontiac Grand Am getting? Is the temp gauge going into the red? If not it may be OK. The cooling fan is controlled by the engine computer. If the fan runs with the A/C on chances are it will run when the engine becomes hot enough for the engine computer to turn it on. To properly check the fan operation it will be necessary to run the engine at idle with the a/c off. If the engine temperature reaches about 235 degrees and the fan is not on yet then you have a problem.
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General Diagnosis
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on October 25, 2010
Running hot and overheating are two different things. How hot is your 1999 Pontiac Grand Am getting? Is the temp gauge going into the red? If not it may be OK. The cooling fan is controlled by the engine computer. If the fan runs with the A/C on chances are it will run when the engine becomes hot enough for the engine computer to turn it on. To properly check the fan operation it will be necessary to run the engine at idle with the a/c off. If the engine temperature reaches about 235 degrees and the fan is not on yet then you have a problem.
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