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Old 07-28-2011, 06:26 PM
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Fan noise behind 730 N?

Turned the truck off this evening, and heard what sounded like a fan running behind the radio. Put my ear right up to it, and sure enough, a faint fan-like noise coming from behind the radio with everything off. Is there some kind of "cooling-fan" behind the radio??
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Old 07-28-2011, 06:37 PM
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Re: Fan noise behind 730 N?

Quote:
Originally Posted by Hollywood View Post
Turned the truck off this evening, and heard what sounded like a fan running behind the radio. Put my ear right up to it, and sure enough, a faint fan-like noise coming from behind the radio with everything off. Is there some kind of "cooling-fan" behind the radio??
Yep; it's a cooling fan (two, actually) built into the unit that exhausts into the dash that will stay on until it gets down around 120 degrees internally...
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Old 07-28-2011, 07:01 PM
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Re: Fan noise behind 730 N?

Thanks for the info. Gotta love the forums!!
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and a 1998 Grand Cherokee Limited with 210K that's still goin' Strong!!
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Old 07-30-2011, 07:14 AM
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Re: Fan noise behind 730 N?

Very strange, past couple mornings, first thing in the morning, after the car's been sitting all night, before I even start it, I've put my ear up against the radio and can hear the same thing??
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and a 1998 Grand Cherokee Limited with 210K that's still goin' Strong!!
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