2005 Chevy Tahoe knocking sound while sitting still

2005 CHEVROLET TAHOE
87,000 MILES • V8 • 2WD • AUTOMATIC
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RKBROWN
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I've noticed that when I am sitting at a stop light, I hear a knocking sound coming from the rear of my vehicle. It sounds as if someone is literally knocking on the vehicle. Any idea what this might be?
Nov 3, 2009 at 10:04 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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