I crank up my truck I hear a tapping noise on the right side took the belts off an the noise still there anybody know where the noise could b comming from
.... a bad lash adjuster.......Does the noise go away after 30 seconds or so? If so, piston slap
Could be a spark plug that has backed out and is about to launch any second ripping all the threads of that hole with it
Could be a header leak
Could be. . . .