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Topic: Radio noise

in Forum: C3 Electrical

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Radio noise (1/6)
7/12/14 1:16am

2tonevette1981
Former Member
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Hillsboro, TX - USA

Vette(s):
1981 beige/bronze

Joined: 3/2/2008
Posts: 148

I don't listen to the radio much, but I turned it on today and there is a lot of motor noise. Sounds great as long as the motor is off. Start the car and I cannot understand a word. I tried a CD and same noise. Is there something I missed when I put new motor in.

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Re: Radio noise (2/6)
7/12/14 10:30am

Gunslinger
Former Member
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Frederick, MD - USA

Vette(s):
1969 convertible L71 427/435 4-speed black interior

Joined: 9/8/2003
Posts: 3398

Is the noise constant or does it rise and lower with engine rpm's? If it's constant, it's ignition interference...if it rises and lowers then it's alternator noise.

Did you replace the shielding around your distributor, coil and plug wires? If not, do so. If it's alternator noise a filter on that can solve the problem.

Poor grounds on the radio and speakers can add to the problem as well.

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Re: Radio noise (3/6)
7/12/14 1:26pm

2tonevette1981
Former Member
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Hillsboro, TX - USA

Vette(s):
1981 beige/bronze

Joined: 3/2/2008
Posts: 148

it is constant no whining noises. Sounds like it would if the station was fading in and out very fast.

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Re: Radio noise (4/6)
8/17/14 12:04am

lakeside49
Limited Member
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CANTON, MI - USA

Vette(s):
`82 Shark

Joined: 10/13/2013
Posts: 21

Btw, that is just a good looking, seldom seen color combo on your car.

Dave

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Lakeside 49

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Re: Radio noise (5/6)
8/22/14 4:12pm

spinalman
Standard Member
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Lancaster, PA - USA

Vette(s):
1970 Green Convertible

Joined: 8/24/2008
Posts: 21

Check you antenna connections. However, I believe you radio is dying.

Jan

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Re: Radio noise (6/6)
9/5/14 11:53am

dapperdan
Former Member
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COLUMBUS, NC - USA

Vette(s):
2011 Grand Sport Coupe, 6-speed 1977 Coupe L82, 4-speed

Joined: 8/19/2012
Posts: 42

That sounds a lot like you have a bad antenna or antenna wire. Check the connections ( not easy, I know), but I'd bet that the problem is in the antenna system.

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