Low lubrication in 5.3 vortec engine of silverado

Hello, how do you see if you could help me solve the oil pressure problem of a 06 Silverado with Vortec 5.3 engine. I already change oil pump and the tac tac of the diver is not removed, what I want to do is change the diver but I don't know how to do it, if someone has knowledge about this I would appreciate it to help me solve the problem

Friend, that is not a pump when the oil collector takes a green or orange oring that oring you change it but to remove the oil collector you must lower the carter take out the filter, sensor the box and if it is 4x4 Lower the transmission just let it go down not to lower it complete

I have a problem we change a connection of the 5.3 Vortec engine of an avalanche 2007 since it entered water and bent already armed everything but the pistons are not activated 1,3,5,7. as we do

I have a problem with my 2005 silvery is a 5.3 Vortec engine they changed the oil pump because it did not have pressure when it was cold and had to accelerate a little because the engine sounded and thus climb the pressure a little, I had to walk it about half an hour to keep it with pressure but when it cooled it returned to the same thing, when the speed went up at 75 mile Running at more than 75 it did not sound, now it started again and if there are 40 pressure at more than 75 the ICT ICT and in the mornings are heard or when it cools it takes about two seconds to raise pressure and a noise is heard in the engine but it raises the pressure and it is removed, that they recommend me to make help please thank you.