2004 GMC Yukon Speaker whistles

2004 GMC YUKON
76,000 MILES • V8 • 4WD • AUTOMATIC
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DALDRUPJM
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  • 1 POST
I currently drive a 2004 GMC Yukon, when I start this vehicle the rear speaker on the drivers side makes a steady whistle noise but as I hit the gas and the RPM's go up the whistle becomes higher pitched as the RPM's change. What could this possibly be caused from?
Aug 5, 2009 at 1:57 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
It can be cause by the ignition system. Has the vehicle been tuned up reciently?
Oct 5, 2009 at 1:02 PM
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