While replacing some hoses today, I took a look at the intake manifold. Believe it or not, I never noticed this in the 3 years I've owned (and worked on) this rig, but when I took a closer look at the intake manifold, here's what I saw (see attached pics). What does this look like to you guys? Perhaps the PO patched up a cracked intake manifold? Intake manifold cracks often result from overheating, right? This makes me wonder what else was done (HG?). This was a CPO vehicle bought from a Lexus dealer with all service records at 35k miles in 2002, but no mention of this in the extensive service history I got. Comments?