Re: Yukon knocking noise?
"Piston Slap" was supposedly eliminated by 2003. It shouldn't last more than 30 secs to a minute or so. 5 minutes is a long time. Mobil One really seems to quiet mine down in the winter and it's not audible in the summer in the warmer temps.
Last edited by 67ChevyRedneck; 04-13-2009 at 02:10 PM.
|