Well. I started looking oil pressure. Was running fine with 40 psi while idling started dropping fell to 20 psi. All of the sudden 0 psi. Took off the oil cap and neck and I'm getting no oil to top. The motor started knocking. A pretty good tap. Checked the oil pump looks good nit sure what I suppose to look for but gears looked good. This is a 4.8 06 with probably 70k miles.dont get me wrong this engine has been through a lot. Nitrous boost several cam swaps etc Could it be the lifters. I was searching and it can possibly be a spun bearing. Is there anyone that can point me to the right direction. Thanks.

 

Drain and collect the oil, look for metal bits. Cut open the oil filter too. Sounds like a spun bearing.

 

Does the oil pump suppose to have a little bit of pressure if I would tear it down

 

Most likely a lifter came apart or a spun rod/main bearing. Like stated drain the oil into an open container and see whats in it. Good tap sounds like lifter, loud knock would be rod bearing.

 

I'd start looking for another junk yard 4.8... doesnt sound good to me.

 

Can't seem to get the Damn oil pan separated to the engine. I removed all bolts to the pan. Am I doing something wrong. We swapped out the oil pump to my brothers 6.0 last year can't seem to remember what we did different

 

Did you pull the bellhousing bolts that go into back of pan ?

 

I remember reading a post one time and it sounded just like that he says it was a bad cam seal. To go from 40 then just drop to 0 it must be pouring out somewhere. '

 

I found this one bolt halfway it was lose but not loosened all the way

 

Thanks for the advice