widopn

Well my truck is down.. and I'm pretty sure ive got a spun bearing. I had been having a wierd problem with my oil pressure being low at idle, but i had good pressure up in the rpms. I took it down the road and done a 1st-3rd pull and after i let off about 10 seconds later i could hear a tapping sound and knew something wasnt right. As soon as i heard it i looked down and the oil was around 30psi, and i was only a quarter mile from my driveway so i just turned it off and coasted it on home. After i pulled it in the garage i fired it to start checking it out and had 0 oil psi now, the knocking/tapping sound wasnt really that loud but i have this awful squealing kind of sound coming from the bottom end right at the front near the oil pump area. I am crossing my fingers hoping my oil pump just went by by and that everything else is ok. I have a gut feeling i have a rod or main bearing gone though but I'm just gonna hope for the best. If any of you guys have any input on this please let me know....

bronx_peanut

The good thing is 5.3s are as cheap as $300 for a used one.

wildcamaro

iTrader: (15)

Yep get Another shortblock

widopn

In the case that I have to get another block I will most likely grab a 6.0 .. I am gonna keep my fingers crossed and try putting an oil pump in it first and just see what happens. I would be more than thankful if thats all it needs. Im just a little puzzled with it because ive never heard a sound like its making from any other engine before.

Whiteaw57

iTrader: (2)

We blew up a buddies GTO that had a nice knock and squeal to it. Spun two rod bearings. It doesn't take much to spin em when you have no oil psi. Best of luck but I don't think I'd push bearing material through a new pump and ruin it.

widopn

Yea I thought more about that after I had posted... I'm gonna start by getting the oil pump out first and take a look and if I can't spot the prob I guess it'll be time to pull er out..

widopn

well I got in to the oil pump and found that my pump didn look to bad but the front main bearing was chewed up and hanging half way out.. . now I guess its time to plan another build. I dunno for sure if I wanna go back with a 5.3 or just got ahead n go with a 6.0..