hi all, new to forum. My 4.2 1998 150 has a slight tick at about 2500 rpm that comes and goes everytime i keep engine at or around that rpm. It will clatter all the time if i maintain 2000 rpms, but does not make any noise if i accel hard or short shift. Im almost leaning toward a bad rocker or lifter. Engine runs great, doesnt burn or leak any oil has 140k and a cold air kit. Also gets pretty good fuel mileage. Any help would be appreciated

 

there are 2 brackets that are attached to your exhaust manifolds, one on each side of the engine.

theyre probably broken, so remove them.

 

ive noticed the dipstick is not tight, is this a mounting bracket you are talking about? I thought the noise was internal. Thanks and ill check in daylight

 

He's talking about the engine lifting brackets, but if the dipstick is loose, that could be what it is.