- Joined
- Dec 10, 2023
- Messages
- 65
Hello all.
Been having a bit of an issue with my 5.3 in my Tahoe as of late.
Picked it up for cheap from someone who didn’t need it. It had 240K, figured if it ran well, mine as well give it a shot.
Long story short. Did my first oil change at around 243-244K, after he did one at 241. Noticed some metal in the oil, but i originally wasn’t worried because i thought it was leftover metal from the drain plug being stripped and needing to be replaced with one of those oversized ones.
Drove it until around 247K, dropped the oil again, at first didn’t see anything till i got it in the sun. The oil had that metallic sheen to it and looked like metallic brown nail polish.
Drained it from the container, bunch of what looked to be metal “crumbs” (i don’t know how else to put this) in the bottom of the pan. My phone was dead so i couldn’t take any pictures before i drained it and gave it to Oreillys for recycling.
It has fantastic oil pressure. It has some piston slap that it’s always had cold, but it goes away quickly when it starts to warm up. It runs smooth as silk. There are no other issues than this. For reference, idle oil pressure cold with 5W-30 in around 105°F ambient temps is around 45-47 PSI. When it’s hot it’ll hover around 35-37.
I haven’t driven it since around 7/25 now because frankly i just don’t want to do anymore damage. I’ve asked around and i’ve gotten answers telling me it’s going to explode tomorrow but not any actual help or diagnostic tests.
Lastly, from what i can tell, it’s REMARKABLY clean inside the engine. With a borescope camera in the passenger head it looks clean enough to eat off of.
Any help would be greatly appreciated. Thanks.
Been having a bit of an issue with my 5.3 in my Tahoe as of late.
Picked it up for cheap from someone who didn’t need it. It had 240K, figured if it ran well, mine as well give it a shot.
Long story short. Did my first oil change at around 243-244K, after he did one at 241. Noticed some metal in the oil, but i originally wasn’t worried because i thought it was leftover metal from the drain plug being stripped and needing to be replaced with one of those oversized ones.
Drove it until around 247K, dropped the oil again, at first didn’t see anything till i got it in the sun. The oil had that metallic sheen to it and looked like metallic brown nail polish.
Drained it from the container, bunch of what looked to be metal “crumbs” (i don’t know how else to put this) in the bottom of the pan. My phone was dead so i couldn’t take any pictures before i drained it and gave it to Oreillys for recycling.
It has fantastic oil pressure. It has some piston slap that it’s always had cold, but it goes away quickly when it starts to warm up. It runs smooth as silk. There are no other issues than this. For reference, idle oil pressure cold with 5W-30 in around 105°F ambient temps is around 45-47 PSI. When it’s hot it’ll hover around 35-37.
I haven’t driven it since around 7/25 now because frankly i just don’t want to do anymore damage. I’ve asked around and i’ve gotten answers telling me it’s going to explode tomorrow but not any actual help or diagnostic tests.
Lastly, from what i can tell, it’s REMARKABLY clean inside the engine. With a borescope camera in the passenger head it looks clean enough to eat off of.
Any help would be greatly appreciated. Thanks.
