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Thread: ZZ383 knocking
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Old 06-27-2009, 07:32 AM
fivewindowcoupe fivewindowcoupe is offline
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with piston slap, would it not be there right from the beginning? I drove this for about 40 miles then I did the 5000 RPM thing and changed the oil as per GM's manual. It was after this that the knocking occurred. The noise is there all the time and is related to engine RPM (not to vehicle speed). It is there in drive or neutral. I have been driving (and not lightly I might add) this for approx. 50 miles so far after the first oil change and it still has the power and oil pressure is still good. I am very impressed with this motor and the performance level but the knocking is annoying. If the warranty only covers parts (I did install it myself) then I might as well drive it until it explodes since I'm gonna have to pay labour anyway.
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