My friend has a 1997 Dodge Ram 1500 extended cab pickup; not sure of the mileage, i guess about 117,000. Hes noticed a knocking noise after the truck warms up. Its irregular, not constant. I listened to it with a stethoscope, and it is coming from the oil pan. Im figuring its either a loose nut on a connecting rod thats making it chatter, or where the rod connects to the bottom of the piston is going bad. Hes looking it up in some books, but we would like a second opinion from anyone who might know what this is. Any tips would be appreciated.
Sep 15, 2006 at 10:18 AM