Good idea. I've already done this and isolated it to the valve train of the top of the engine.

This is why I'm thinking I need to adjust the valves.

Still trouble shooting this one though because I don't what to have to replace the heads. Big money unless I can find one in a salvage yard somewhere.

Logansportage <img src="/forums/images/graemlins/patriot.gif" alt="" />

White 1998 4 door KIA Sportage 4x4 w/Eibach 2.5 spring lift and TJ rear coils, 4crawler 1.5 body lift, Monroe Sensa.trac shocks, Bosch 4+ plugs, Eaton LSD, 31x10.5x15 BFG KM tires, 2.5 cat back exhaust w/SpinTech muffler