Question about 2007 Pontiac Grand Prix GXP Sedan

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Humming noise in speakers

Noise stops for awhile when I touch the drivers seat bottom

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  • Pontiac Master
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Something is shorting some ware in the vehicle its electrical interferance. See if the noise occurse with the engine off in ACC pisiton. If not the problem is likely a problem with the coil or spark plug wires . Look under the hood when its dark take something nonmetal move the wires if you see skarks you need to replace all wires

Posted on Feb 22, 2012

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