ok heres what happened. yesterday i bought a blazer ls, 104k on it, drove fine all day, today i start it up and i had engine noise progressively got worse, stalled out twice while trying to reverse, then i noticed no oil pressure at all, at idle or stop signs, when i got her to around 50mph the engine noise is gone and oil pressure is around 40. but again when i get into first second third it make mad noise, so i stopped driving it, i think its the oil pump is bad, oil level is fine, oil is clean, noise gets worse when revved, whats wrong? im mking payments on this truck and i cant drive it!!!! help!!!!

 

What kind of noise is it?

 

okso my name is travis, we change the oil filter it was th e wrong filter, collapsed, and sluged up, started the truck and engine noise immediatly drastically reduced oil pressure is great, but when i put a load on the engine it knocks not super bad but a little. bad rod bearings? if so what do i replace them with?