lost my oil pressure

[jjmac]

I have a 2004 gtp with 140,000 miles. parked it on sunday, everything was fine. Started it on monday morning and the lifters were clattering. I checked the oil pressure with a mechanical guage to find I only had 4psi of oil pressure. I have changed the oil pump and inspected the pick up tube. I still have only 4-5psi of oil pressure(lifters still clattering from bleed down). What am I missing. To my knowledge the cam bearings and main bearings are not hurt. Car has not been driven. Any suggestions?

 

[Reptile]

It could be anything really....oil pumps aren't well known for failling, but if you have one bearing that let go then you won't have oil pressure either.

 

[minichopper6hp]

Check the bypass spring and piston in the oil filter housing, maybe the spring collapsed or broke?

 

[jjmac]

I replaced the spring and cup when I did the oil pump.

 

[OH4CompG]

You spun a bearing then. I know a guy that spun a cam bearing just driving down the road. Not common, but it has happened. Time to get an l26 short block and cam it