engine noise

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Glenns2500

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2024
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What is that roaring noise sound like the fan has speed up does not do it all the time but is much louder than normal engine noise
 

tron67j

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Electric fan for radiator kicking in?
 
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Glenns2500

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Thats what I originally thought but it has a belt driven fan with wires going to the fan clutch? does it when cold or warmed up with no temp change thought it may be regen but when gauge says its regenerating its not making the noise
 

06 Dodge

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What is that roaring noise sound like the fan has speed up does not do it all the time but is much louder than normal engine noise
Its normal for fan to do this don't recall the reason I was told for it doing so mine has done it since the day I picked it up new in northern ID in 3/22
 

MikeT

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Chino Valley, AZ
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Mine does that on hot days at highway speed with the AC on. I see the temp marker get just a tick over the middle and shortly after there a loud whirring noise from the engine compartment, the temp comes back down to just below the center line and then the noise stops.

Mike
 
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