2003 Chevrolet Avalanche Electrical Noise Heard Through Radio On Engine

2003 CHEVROLET AVALANCHE
60,000 MILES
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electrical noise is heard through the radio, when on, and engine is running. noise increases with engine r p m. could this be caused by the alternator or something else ?
Oct 27, 2012 at 11:56 PM
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SATURNTECH9
  • ✓ASE Certified Mechanic
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Sounds more like spark plug wire interference do you have a portable am/fm radio?
Oct 28, 2012 at 12:24 AM
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