Thread: HELP-metallic tapping sound, what could it be?

Make sure your oil level is good. It could be a lifter that's starting to collapse.

changed the oil and the old oil looked fine and the level was within the dotted lines. new oil is the same i've been using, mobil 5000 10w-30, but i tried switching from the ac delco pf-52 to the oem pf-47 but still no change. oil level with the fresh oil is again within the dotted lines.

edit-did anyone listen to the sound? i heard dubob's sample clip of a local having loud lifter ticking that was failing, but is this a smiliar scenario?