Not the hemi tick. Please help.

[coastie124]

Well I've got an 04 durango 5.7L. Runs great no problems no noises. Then Sunday I go to warm it up before church and as soon as it starts it sounds like I've get metal on metal contact. It sounded like a dust cover being hit by the flywheel. I pulled it no change in sound. The starter is disengaging. It sounds like it's coming from the number 6-8 cylinder bottom end. I also checked the exhaust studs for anything being loose. It also doesn't matter if it's under load or not. It's like a metal baseball card hitting the crank or something. Could it be the CPS? Any other ideas or experiences?

Thanks in advance,
Brian

[NE57]

If you're concerned about the bottom end you should be able to quickly rule out a spun rod bearing.
Turn the crank til the piston is halfway down passed TDC. Stick a pushrod or similar thru the sparg plug hole til it touches the piston. Push down. If it moves you've got a spun bearing.
Don't ask me how I know. Its too sickening.