well,
not for sure, but maybe, the sound you hear in my earlier post may be the sound of a timing belt, or tensioner going out. my belt jumped, and now the truck is in the shop.
just an update. any body having some ticking in their engine should maybe investigate. i only have 64000 miles on the vx. belt is said to be replaced at 100000.
just letting you know whats up with an update.
thanks for your help.
still dont know what the black box is though

david