2001 bonniville problems

[Emmy 75]

I have a 2001 bonniville that the motor was just rebuilt but we can't get it to hold oil pressure ..replaced oil pump and sending unit ..any ideas on what else it could be

[maxwedge]

What do you mean " hold" oil pressure, to low, needs priming, more info here is needed.

[Emmy 75]

Originally Posted by maxweidge

What do you mean " hold" oil pressure, to low, needs priming, more info here is needed.

It holds about 40 until it warms up then drops to 0

[Tech II]

Exactly, what do you mean by rebuild? Crank turned, bearings replaced? Cam turned, bearings replaced?