Engine Knock

[runninW.O.T.]

My gas V6 sounds like a diesel at the moment.

My first thought was that the timing needing to be replaced. But it doesn't sound like a timing belt issue.

Any Ideas?

[Goat Blower]

You'll need to diagnose exactly where the noise is coming from. Drain your oil and see if you've got metal flakes or the oil shimmers in the light. You might have a rod bearing about to go.

[JET]

If it is a hard metallic knock I would agree with Steve. If it is just missing then I would check plugs & wires.

[runninW.O.T.]

It is a hard knock.

Near as I can tell it is isolated on the back bank.

[Pushit2.0]

Rod bearing spins and then the piston starts to hit the head, its sweet.

~John