Light Rattle from Engine at Idle

[r.barn]

getting this slight rattling sound from inside the engine.

Does it when you just come off idle and giving it very little throttle
sometimes just at idle too.

Engine runs strong and noise clears up as soon engine gets moving

It's not a knock, hard to describe, never heard engine make noise like this.


Is this the common lifter noise ?

[MidwestSS]

piston slap?

[r.barn]

Really dont know.

Kinda sounds like some loose change being shaken
up in your hands.

Clears right up when you give it some more gas.

[pl4yboy]

Sounds like a little bit of piston slap. Pretty common with these motors.

[r.barn]

All the vids I found on youtube, piston slap sounds like a knock to me.

This is more a rattle in the valvetrain .................
Doesnt do it all the time, engine can be hot or cold, only get it as barely
accelerating out of idle.

Anyone else ???

[r.barn]

Nobody ?

[SLO TRUCK]

i posted a vid of a lifter bad a few months back.