as of recently, within the last week or so, i have begun to hear a taping noise comming from the engine block. After a little investigating ive pinpointed the sound to be comming from the area of the far left spark plug/ head. I say spark plug because after hearing the noise i took the plug out and put it back in to make sure it was in all the way, while tighting it seemed to have sliped, although it still tightend. The noise then went down a little quieter but a day or so later was back loud again.
any sugestions/ comments helpful= thanks

maybe a valve? I dunno.

Are you sure its just not the injectors? Or you could have a tiny exhuast leak( i had one aorund my header...very small and it sorta sounded like a ticking) but i would think its ur injectors....but I wouldnt understand why removing your spark plugs and putting them back in would make a difference.