Where do y'all think this is coming from? 06 5.3. The fast repetitive low noise
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Well we got after it and replaced all 8 spark plugs and wires with AC delco, and replaced a seriously cracked driver header. Noise is still there, no exhaust leak now though. By the way just found out its actually a L33 HO 5.3
Daniel.... just ran across this thread and hoping you figured out the problem, because I have the exact same sound coming from my 06 Silverado 5.3. Please tell me you found the problem.
so this means my motor finna go poop cause it makes that same noise.. :tableflip: Guess it's time to start looking at ccsb's :secret:
ehh. I'd be looking for low mile 2006/2007c z71