July 22, 2007When first started I have a slight knock that goes away in a minute or two as it warms up. Does not sound like a valve tap. More like a piston slap. 35000 miles. I run 5/30 oil I welcome any ideas. CEC
July 24, 2007Hard to say without hearing it, but would piston slap go away when warmed? I don't think so, but valve tap would/could.
July 24, 2007Thanks for the opinion, that is reasuring. cec