[phillyry]

305TBI. Chatter comming from front of crank by Harmonic Balancer. Only after its warmed up, always around idle or under 1300, at a stop in drive it sometimes sounds very nasty but pop it in N and it quiets down alot. Took off the belt and it's deff not any other accessory. In park it could be very quiet then all of a sudden it starts a loud chatter, I give it a little gas and it goes away, let off gas as it falls back down to idle chhxchchx.... ?????