youtube link: posted by Hoppy2 on March 31, 2011 at 02:44 PM
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Lifers are much more high pitched then that. Might be a bad recording though. Unplug the VTC solenoids. Could be VTCs. Honestly sounds more like a piston slap or wrist pin to me. How is the oil pressure?
I would be careful on this one. You might be looking at a crapshoot.