Cooling fan cycling every 15 seconds

black2008gt

GT500 NOOB
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Apr 18, 2012
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Cooling fan on the 500 is constantly cycling on and off ever 10 to 15 seconds in 85 degree weather. Is this normal? Everytime it cycles it creats a 100 to 200 rpm dip and change in idle.
 

TxGt1

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Interesting my 2011 does the same when the AC is on. I just picked up a month ago and haven't had a chance to look into it.


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Yagermeister

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Dec 7, 2011
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I had it even with the ac off at first then Lund made a few tweaks and now it is present only when the ac is on. Maybe a tuner can pipe in with if this is normal and fixable
 

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