Hi Kerry, The best tool that I ever found for this and other noises is an electronic stethescope, usally available from a parts store for around $30.00, in leiu of that, you can remove the valve covers and use the old finger method of touching the rocker arm with your finger to feel for the shock of the lifter hitting or use a thin dteel rod or vacuum hose to your ear and the rocker. Makes one heck of a mess though. Allan R On Wed, 13 Mar 2002 16:47:37 -0800 (PST) KerryPinkerton <pinkertonk@xxxxxxxxx> writes: > Is there a definitive way to tell the difference > between a clicking lifter and an exhaust leak from a > cracked exhaust manifold? > > Been down the road of replacing lifters only to find > it was a cracked manifold once before. > > Kerryp > > __________________________________________________ > Do You Yahoo!? > Try FREE Yahoo! Mail - the world's greatest free email! > http://mail.yahoo.com/ > >