C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Radio interference

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Old Jul 31, 2005 | 11:06 PM
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Clemson Vette's Avatar
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From: anderson sc
Default Radio interference

my 95 vette has got some sort of interference in the radio signal. when playing a CD there is no problem, but when using the radio the car picks up some signal that is a popping sound. it increases in frequency with the engine speed. it also gets louder as the volume. what does this mean and how can i fix it? the radio is stock. anyone have an idea where i can go to fix this? what's causing it? pretty annoying. please help thanks in advance.

Stuart
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Old Aug 1, 2005 | 12:53 AM
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vettenut85
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From: machesney park il
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noise from the alternator.my 85 did the same ,replaced the alt.if you remove the engine drive belt you can run the engine just long enough to verify the radio noise is gone.
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Old Aug 1, 2005 | 12:56 AM
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From: Harrisburg, PA 86 Vert w/ 89 wheels
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before you go throwing money into a new alternator, you should know that i have replaced my alternator more than once and i never did get my radio whine to go away.
There is a ground in your electrical system somewhere. Could be the alternator, but it might not be.

since it only happens when the antennae is raised, you might want to check the antennae?
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Old Aug 1, 2005 | 07:11 AM
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From: anderson sc
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no the antenna is up when the whole unit is on. but when playin a CD no problem. just on the radio function. the antenna is up when playin the CD tho. keep em comin guys. thanks
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Old Aug 2, 2005 | 02:29 PM
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From: Plantation Florida USAF(Retired) 1966-1990
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I had the same problem has the rest of you. When I chromed out the engine, and replaced alt. with a chrome one the noise went away.
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