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Pulsating Radio Static

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Old Dec 12, 2006 | 03:49 PM
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From: Spicewood, TX
Pulsating Radio Static

Early '99 F-250 7.3 PSD.

Ever since I bought this truck (Jan '05), there has been a pulsating static on the AM side. The pulsating is at a rate of about 6 times/second. Only when I am really close to the station's transmitter - say 5 to 7 miles or so - is the static overcome by the signal strength of the station. The pulsating is constant - never changes in rate or pitch. Pulsating static stops when I turn off the engine.

Thought that if there was an external filter I'd check it out but I have no idea where to look.

Ideas?

Thanks in advance.
 
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Old Dec 12, 2006 | 10:35 PM
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Does your truck use an electric fuel pump?
 
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Old Dec 13, 2006 | 06:59 AM
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Yep. And I'll bet that's it. It's the only thing in the truck that makes sense.

Good catch, fl1a! - thanks for the starting place.
 
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Old Dec 13, 2006 | 07:38 PM
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I had seen that problem on a fire truck a few years ago.
 
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